Document And Entity Information - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Feb. 06, 2019 |
Jun. 29, 2018 |
|
| Document Information [Line Items] | |||
| Entity Registrant Name | Ultralife Corp | ||
| Entity Central Index Key | 0000875657 | ||
| Trading Symbol | ulbi | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Filer Category | Accelerated Filer | ||
| Entity Current Reporting Status | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Emerging Growth Company | false | ||
| Entity Small Business | true | ||
| Entity Common Stock, Shares Outstanding (in shares) | 15,659,318 | ||
| Entity Public Float | $ 96,303,216 | ||
| Document Type | 10-K/A | ||
| Document Period End Date | Dec. 31, 2018 | ||
| Document Fiscal Year Focus | 2018 | ||
| Document Fiscal Period Focus | FY | ||
| Amendment Flag | true | ||
| Amendment Description | This Amendment No. 1 to the Annual Report on Form 10-K of Ultralife Corporation (the “Company”) for the year ended December 31, 2018 as filed with the Securities and Exchange Commission on February 7, 2019 (the “Original Form 10-K”) is being filed for the sole purpose of amending the cover page to clarify that, as of February 6, 2019, there were 15,659,318 shares of the Company’s common stock outstanding. On the cover page of the Original Form 10-K, the Company’s 4,399,850 treasury shares (shares issued but not outstanding) as of February 6, 2019 were inadvertently included in the number of shares of the Company’s common stock outstanding. This Amendment No. 1 does not amend, modify or update the financial position, results of operations, cash flows, or other disclosures in the Original Form 10-K, nor does it reflect events occurring after the filing of the Original Form 10-K. Accordingly, this Amendment No. 1 should be read in conjunction with the Original Form 10-K. | ||
| Entity Shell Company | false |
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- Definition Description of changes contained within amended document. No definition available.
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- Definition If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
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- Definition End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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- Definition This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'. No definition available.
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- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition Indicate if registrant meets the emerging growth company criteria. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated), (5) Smaller Reporting Accelerated Filer or (6) Smaller Reporting Company and Large Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition State aggregate market value of voting and non-voting common equity held by non-affiliates computed by reference to price at which the common equity was last sold, or average bid and asked price of such common equity, as of the last business day of registrant's most recently completed second fiscal quarter. The public float should be reported on the cover page of the registrants form 10K. No definition available.
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- Definition Indicate 'Yes' or 'No' if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. No definition available.
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- Definition Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. No definition available.
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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due. This amount is the total of current and noncurrent accrued income taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Value of all classes of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares exclude common shares repurchased by the entity and held as treasury shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of noncurrent assets classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after accumulated amortization of finite-lived and indefinite-lived intangible assets classified as other. No definition available.
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- Definition Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Trade accounts receivable, allowance for doubtful accounts | $ 296 | $ 292 |
| Preferred stock, par value (in dollars per share) | $ 0.10 | $ 0.10 |
| Preferred stock, shares authorized (in shares) | 1,000,000 | 1,000,000 |
| Preferred stock, shares issued (in shares) | 0 | 0 |
| Common stock, par value (in dollars per share) | $ 0.10 | $ 0.10 |
| Common stock, shares authorized (in shares) | 40,000,000 | 40,000,000 |
| Common stock, shares issued (in shares) | 20,053,335 | 19,670,928 |
| Common stock, shares outstanding (in shares) | 15,920,585 | 15,651,217 |
| Treasury stock, shares (in shares) | 4,132,750 | 4,019,711 |
| X | ||||||||||
- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The aggregate cost of goods produced and sold and services rendered during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Interest and debt related expenses associated with nonoperating financing activities of the entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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- References No definition available.
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
AOCI Attributable to Parent [Member] |
Retained Earnings [Member] |
Treasury Stock [Member] |
Noncontrolling Interest [Member] |
Total |
|---|---|---|---|---|---|---|---|
| Balance (in shares) at Dec. 31, 2016 | 19,324,723 | ||||||
| Balance at Dec. 31, 2016 | $ 1,932 | $ 178,163 | $ (3,080) | $ (90,542) | $ (18,443) | $ (170) | $ 67,860 |
| Stock Option Exercises (in shares) | 333,305 | 333,305 | |||||
| Stock Option Exercises | $ 33 | 1,396 | $ 1,429 | ||||
| Tax Withholdings on Option Exercises | (26) | (26) | |||||
| Stock-Based Compensation -Stock Options | 642 | 642 | |||||
| Stock-Based Compensation -Restricted Stock | 11 | 11 | |||||
| Vesting of Restricted Shares (in shares) | 12,900 | ||||||
| Vesting of Restricted Shares | $ 1 | (1) | |||||
| Foreign Currency Translation Adjustments | 1,469 | 1,469 | |||||
| Net Income | 7,648 | 16 | $ 7,664 | ||||
| Balance (in shares) at Dec. 31, 2017 | 19,670,928 | 15,651,217 | |||||
| Balance at Dec. 31, 2017 | $ 1,966 | 180,211 | (1,611) | (82,894) | (18,469) | (154) | $ 79,049 |
| Stock Option Exercises (in shares) | 382,407 | 422,793 | |||||
| Stock Option Exercises | $ 39 | 1,529 | $ 1,568 | ||||
| Tax Withholdings on Option Exercises | (55) | (55) | |||||
| Stock-Based Compensation -Stock Options | 817 | 817 | |||||
| Stock-Based Compensation -Restricted Stock | 73 | 73 | |||||
| Foreign Currency Translation Adjustments | (1,175) | (1,175) | |||||
| Net Income | 24,930 | 69 | 24,999 | ||||
| Share Repurchases | (742) | $ (742) | |||||
| Balance (in shares) at Dec. 31, 2018 | 20,053,335 | 15,920,585 | |||||
| Balance at Dec. 31, 2018 | $ 2,005 | $ 182,630 | $ (2,786) | $ (57,964) | $ (19,266) | $ (85) | $ 104,534 |
| X | ||||||||||
- Definition This element represents the amount of recognized equity-based compensation related to restricted stock options during the period. No definition available.
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| X | ||||||||||
- Definition The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. No definition available.
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| X | ||||||||||
- Definition Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation for stock options. No definition available.
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| X | ||||||||||
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Value of stock issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Value of stock issued as a result of the exercise of stock options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Adjustments to temporary equity resulting from foreign currency translation adjustments. No definition available.
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| X | ||||||||||
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of proceeds from government subsidies. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of amortization expense attributable to debt issuance costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in obligations incurred but not paid, and operating obligations classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The cash outflow to reacquire common stock during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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Note 1 - Summary of Operations and Significant Accounting Policies |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Business Description and Accounting Policies [Text Block] | Note 1 - Summary of Operations and Significant Accounting Policies
As used in this annual report, unless otherwise indicated, the terms “we”, “our” and “us” refer to Ultralife Corporation (“Ultralife”) and includes our wholly-owned subsidiaries, ABLE New Energy Co., Limited and its wholly-owned subsidiary ABLE New Energy Co.; Ltd; Ultralife UK LTD and its wholly-owned subsidiary, Accutronics Ltd; Ultralife Batteries (UK) Ltd.; and our majority-owned joint venture Ultralife Batteries India Private Limited. We offer products and services ranging from power solutions to communications and electronics systems. Through our engineering and collaborative approach to problem solving, we serve government, defense and commercial customers across the globe. We design, manufacture, install and maintain power and communications systems including: rechargeable and non-rechargeable batteries, charging systems, communications and electronics systems and accessories, and custom engineered systems. We sell our products worldwide through a variety of trade channels, including original equipment manufacturers (“OEMs”), industrial and defense supply distributors, and directly to U.S. and international defense departments.
The consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and include the accounts of Ultralife Corporation, our wholly-owned subsidiaries, Ultralife Batteries (UK) Ltd., Ultralife UK LTD, and its wholly-owned subsidiary Accutronics Ltd, ABLE New Energy Co., Limited and its wholly-owned subsidiary ABLE New Energy Co., Ltd. (“ABLE” collectively), and our majority-owned subsidiary Ultralife Batteries India Private Limited (“India JV”). Intercompany accounts and transactions have been eliminated in consolidation.
The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at year end and the reported amounts of revenues and expenses during the reporting period. Key areas affected by estimates include: (a) carrying value of goodwill and intangible assets; (b) reserves for deferred tax assets, excess and obsolete inventory, warranties, and bad debts; (c) valuation of assets acquired and liabilities assumed in business combinations; (d) various expense accruals; and (e) stock-based compensation. Our actual results could differ from these estimates.
Certain items previously reported in specific financial statement captions are reclassified to conform to the current presentation. There were no material reclassifications for the years ended December 31, 2018 and 2017.
Our cash balances may at times exceed federally insured limits. We have not experienced any losses in these accounts and believe we are not exposed to any significant risk with respect to cash.
We extend credit to our customers in the normal course of business. We perform ongoing credit evaluations and generally do not require collateral. Payment terms are generally 30 days. Trade accounts receivable are recorded at their invoiced amounts, net of allowance for doubtful accounts. We evaluate the adequacy of our allowance for doubtful accounts quarterly. Accounts outstanding for longer than contractual payment terms are considered past due and are reviewed for collectability. We maintain reserves for potential credit losses based upon our historical experience and the aging of specific receivables. Receivable balances are written off when collection is deemed unlikely.
Inventories are stated at the lower of cost or net realizable value with cost determined under the first -in, first -out (FIFO) method. We record provisions for excess, obsolete or slow-moving inventory based on changes in customer demand, technology developments or other economic factors.
Property, plant and equipment are stated at cost. Depreciation and amortization are computed using the straight-line method over the estimated useful lives. Estimated useful lives are as follows (in years):
Betterments, renewals and extraordinary repairs that extend the life of the assets are capitalized. Other repairs and maintenance costs are expensed when incurred. When disposed, the cost and accumulated depreciation applicable to assets retired are removed from the accounts and the gain or loss on disposition is recognized in operating income.
We assess all of our long-lived assets for impairment when events or circumstances indicate that their carrying amounts may not be recoverable. For property, plant and equipment and amortizable intangible assets, this is accomplished by comparing the expected undiscounted future cash flows of the assets with the respective carrying amount as of the date of assessment. Should aggregate future cash flows be less than the carrying value, a write-down would be required, measured as the difference between the carrying value and the fair value of the asset. Fair value is estimated as the present value of expected discounted future cash flows. The discount rate used in our evaluation is an industry-based weighted average cost of capital. If the expected undiscounted future cash flows exceed the respective carrying amount as of the date of assessment, no impairment is recognized.The purchase price paid to effect an acquisition is allocated to the acquired tangible and intangible assets and liabilities at fair value. We do not amortize goodwill and intangible assets with indefinite lives, but instead evaluate these assets for impairment at least annually, or when events indicate that impairment exists. We amortize intangible assets that have definite lives so that the economic benefits of the intangible assets are being recognized over their weighted-average estimated useful life.The quantitative impairment test for goodwill consists of a comparison of the fair value of the reporting unit with the carrying amount of the reporting unit to which it is assigned. If the fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is considered not impaired. If the carrying amount of a reporting unit exceeds its fair value, a second step of the goodwill impairment test is performed to measure the amount of impairment loss, if any. The impairment test for intangible assets with indefinite lives consists of a comparison of the fair value of the intangible assets with their carrying amounts. If the carrying value of the intangible assets exceeds the fair value, an impairment loss is recognized in an amount equal to that excess.
The financial statements of our foreign subsidiaries are translated from the functional currency into U.S. dollar equivalents, with translation adjustments recorded as the sole component of accumulated other comprehensive loss. Exchange gains and losses related to foreign currency transactions and balances denominated in currencies other than the functional currency are recognized in net income.
Effective January 1, 2018, the Company adopted Accounting Standards Update 2014 -09 (Topic 606 ) “Revenue from Contracts with Customers”. Adoption of Topic 606 did not impact the timing of revenue recognition in our consolidated financial statements for the current or prior periods. Accordingly, no adjustments have been made to opening retained earnings or prior period amounts. See Note 9 for disaggregated revenue information.Revenues are generated from the sale of products. Performance obligations are met and revenue is recognized upon transfer of control to the customer, which is generally upon shipment. When contract terms require transfer of control upon delivery at a customer’s location, revenue is recognized on the date of delivery. Revenue is measured as the amount of consideration we expect to receive in exchange for shipped product. Sales, value-added and other taxes billed and collected from customers are excluded from revenue. Customers, including distributors, do not have a general right of return. For products shipped under vendor managed inventory arrangements, revenue is recognized and billed when the product is consumed by the customer, at which point control has transferred and there are no further obligations by the Company.Revenues recognized from prior period performance obligations for the year ended December 31, 2018 were not material.As of December 31, 2018, the Company had no unsatisfied performance obligations for contracts with an original expected duration of greater than one year. Pursuant to Topic 606, we have applied the practical expedient with respect to disclosure of the deferral and future expected timing of revenue recognition for transaction price allocated to remaining performance obligations.Deferred revenue, unbilled revenue and deferred contract costs recorded on our consolidated balance sheets as of December 31, 2018 and 2017 were not material.
We generally offer standard warranties against product defects. We do not offer separate service-type warranties. We estimate future warranty costs to be incurred for product failure rates, material usage and service costs in the development of our warranty obligations. Estimated future costs are based on actual past experience and are generally estimated as a percentage of sales over the warranty period. Warranty costs are recorded as costs of products sold. Provision for warranty costs is recorded in other current liabilities and other long-term liabilities on our consolidated balance sheets based on the duration of the warranty.
Costs incurred by us related to shipping and handling are included in cost of products sold. Amounts charged to customers pertaining to these costs are reflected as revenue.
Sales commissions are expensed as incurred for contracts with an expected duration of one year or less. There were no sales commissions capitalized as of December 31, 2018.
Research and development expenditures are charged to operations as incurred. The majority of research and development expenses pertain to salaries and benefits, developmental supplies, depreciation and other contracted services. For the years ended December 31, 2018 and 2017, we expended $4,905 and $5,142, respectively, on research and development, including $397 and $405, respectively, on customer sponsored research and development activities, which are included in cost of goods sold. We recognized $397 and $405 of revenue relating to these activities for the years ended December 31, 2018 and 2017, respectively.
Environmental expenditures that relate to current operations are expensed. Remediation costs that relate to an existing condition caused by past operations are accrued when it is probable that these costs will be incurred and can be reasonably estimated.
We account for income taxes using the asset and liability method. Under this method, deferred tax assets and liabilities are determined based on differences between financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates and laws that are expected to be in effect when the differences are expected to reverse. Pursuant to ASC 740, a valuation allowance is recognized when the realizability of deferred tax assets is not more likely than not, on the basis of all available evidence, both positive and negative, weighted based on objective verifiability.
We have one major customer, a large defense primary contractor, which comprised 16% and 18% of our revenues in 2018 and 2017, respectively. There were no other customers that comprised greater than 10% of our total revenues during these years.Currently, we do not experience significant seasonal trends in our revenues. Since a significant portion of our revenues are based on purchases from U.S. and allied country defense departments, the timing of our sales could be impacted by delays in the government budget process and the decisions to deploy resources to support military purchases of our products.We generally do not distribute our products to a concentrated geographical area nor is there a significant concentration of credit risks arising from individuals or groups of customers engaged in similar activities, or who have similar economic characteristics. While direct and indirect sales to the U.S. Department of Defense have been substantial during 2018 and 2017, we do not consider this customer to be a significant credit risk.Certain materials and components used in our products are available only from a single or a limited number of suppliers. As such, some materials and components could become in short supply resulting in limited availability and/or increased costs. Additionally, we may elect to develop relationships with a single or limited number of suppliers for materials and components that are otherwise generally available. Although we believe that alternative suppliers are available to supply materials and components that could replace materials and components currently used and that, if necessary, we would be able to redesign our products to make use of such alternatives, any interruption in the supply from any supplier that serves as a sole source could delay product shipments and have a material adverse effect on our business, financial condition and results of operations. We have experienced interruptions of product deliveries by sole source suppliers in the past.
Fair value is defined as the price that would be received for an asset or the exit price that would be paid to transfer a liability in the principal or most advantageous market in an orderly transaction between market participants on the measurement date. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:
The fair value of financial instruments approximated their carrying values at December 31, 2018 and 2017. The fair value of cash, trade accounts receivable, trade accounts payable, and accrued liabilities approximates carrying value due to the short-term nature of these instruments.
Basic earnings per share (“EPS”) is computed by dividing net income attributable to Ultralife Corporation by the weighted average shares of common stock outstanding for the period. Diluted EPS reflects the assumed exercise and conversion of dilutive outstanding stock options and unvested restricted stock, if any, applying the treasury stock method. For the year ended December 31, 2018, the calculation of diluted EPS included 1,127,837 stock options and 17,500 restricted stock awards. Inclusion of these shares resulted in 465,004 additional shares in the calculation of diluted EPS. There were 448,250 outstanding stock options as of December 31, 2018 excluded from the calculation of diluted EPS, as inclusion of these shares would have been anti-dilutive.For the year ended December 31, 2017, the calculation of diluted EPS included 1,035,711 stock options. Inclusion of these shares resulted in 330,676 additional shares in the calculation of diluted EPS. There were no unvested restricted stock units as of December 31, 2017. 824,500 outstanding stock options as of December 31, 2017 were excluded from the calculation of diluted EPS, as inclusion of these shares would have been anti-dilutive.
We have various stock-based employee compensation plans that are described more fully in Note 6. The compensation cost relating to share-based payment transactions is measured at the grant date, based on the estimated fair value of the award, and is recognized as expense over the employee’s requisite service period (generally the vesting period of the equity award).
We have two operating segments – Battery & Energy Products, and Communications Systems. The basis for determining our operating segments is the manner in which financial information is used in monitoring our operations. Management operates and organizes itself according to business units that comprise unique products and services across geographic locations.
In May 2014, the FASB issued ASU 2014 -09 (Topic 606 ) “Revenue from Contracts with Customer”. Under this standard, revenue is recognized when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. The new standard will replace most existing revenue recognition guidance under GAAP and permits the use of either the retrospective or cumulative effect transition method. Topic 606 is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. The Company adopted Topic 606 effective January 1, 2018. Adoption of Topic 606 did not impact the timing of revenue recognition in our consolidated financial statements for the current or prior periods. Accordingly, no adjustments have been made to opening retained earnings or prior period amounts. Adoption of this standard required additional disclosure which can be found in Notes 1 and 9. In November 2016, the FASB issued ASU 2016 -18, “Statement of Cash Flows (Topic 230 ): Restricted Cash”. The standard is effective for fiscal years beginning after December 31, 2017, and interim periods within those fiscal years, and should be applied using a retrospective transition method for each period presented. The standard requires that amounts generally described as restricted cash and restricted cash equivalents be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total cash amounts shown on the statements of cash flows. The Company has adopted this standard effective January 1, 2018. As a result, restricted cash has been included in the total cash amounts on the consolidated statement of cash flows for all periods presented and the required disclosures have been included in the notes to consolidated financial statements. There was no impact to the Company’s consolidated statements of income as a result of adopting this new accounting standard.In August 2016, the FASB issued Accounting Standards Update 2016 -15, “Statement of Cash Flows (Topic 230 ), Classification of Certain Cash Receipts and Cash Payments”. The standard makes eight targeted changes to how cash receipts and cash payments are presented and classified in the statement of cash flows. The standard is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The standard requires adoption on a retrospective basis unless it is impracticable to apply, in which case the Company would be required to apply the amendments prospectively as of the earliest date practicable. The Company has adopted this standard effective January 1, 2018. Adoption of this standard did not impact our consolidated financial statements.In May 2017, the FASB issued ASU 2017 -09, “Compensation – Stock Compensation (Topic 718 ) – Scope of Modification Accounting”, which provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The standard is effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. The standard is to be applied on a prospective basis to an award modified on or after the adoption date. The Company has adopted this standard effective January 1, 2018. Adoption of this standard did not impact our consolidated financial statements.In October 2016, the FASB issued ASU 2016 -16, “Income Taxes (Topic 740 ), Intra-Entity Transfers of Assets Other Than Inventory”. The new guidance requires that entities recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs, rather than when the asset is sold to an outside party. The standard is effective for annual reporting periods beginning after December 15, 2017, including interim periods within those annual reporting periods. Early adoption is permitted. The new guidance requires adoption on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company has adopted this standard effective January 1, 2018. Adoption of this standard did not impact our consolidated financial statements.In March 2018, the FASB issued ASU 2018 -05, “Income Taxes (Topic 740 ): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118”. The standard adds various Securities and Exchange Commission (“SEC”) paragraphs pursuant to the issuance of the December 2017 SEC Staff Accounting Bulletin No. 118, “Income Tax Accounting Implications of the Tax Cuts and Jobs Act” (“SAB 118” ), which was effective immediately. The SEC issued SAB 118 to address concerns about reporting entities’ ability to timely comply with the accounting requirements to recognize all of the effects of the Tax Cuts and Jobs Act (the “Tax Act”) in the period of enactment. SAB 118 allows disclosure that timely determination of some or all of the income tax effects from the Tax Act are incomplete by the due date of the financial statements and if possible to provide a reasonable estimate. Refer to Note 7 for discussion of our final determination of the effects of the Tax Act on our consolidated financial statements.In February 2016, the FASB issued ASU 2016 -02, “Leases”, which requires that lessees recognize a right-to-use asset and related lease liability for all significant financing and operating leases not considered short-term leases, and specifies where in the statement of cash flows the related lease payments are to be presented. The guidance is effective for years beginning after December 15, 2018 and early adoption is permitted. The Company has adopted the new lease standard effective January 1, 2019. The impact of adoption will be the recognition of a right-to-use asset and corresponding lease liability on the Company’s consolidated balance sheet. Adoption of the new lease standard will not have a significant impact on the Company’s consolidated statement of income.In January 2017, the FASB issued ASU 2017 -04, “Intangibles – Goodwill and Other (Topic 350 ) – Simplifying the Test for Goodwill Impairment”, which eliminates the two -step process that required identification of potential impairment and a separate measure of the actual impairment. The annual assessment of goodwill impairment will be determined by using the difference between the carrying amount and the fair value of the reporting unit. The standard is effective for annual and interim impairment tests performed in periods beginning after December 15, 2019 and is to be applied on a prospective basis. The Company is currently assessing the impact that adopting this new accounting standard will have on our consolidated financial statements. |
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| X | ||||||||||
- Definition The entire disclosure for the business description and accounting policies concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Accounting policies describe all significant accounting policies of the reporting entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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Note 2 - Share Repurchase Program |
12 Months Ended |
|---|---|
Dec. 31, 2018 | |
| Notes to Financial Statements | |
| Stockholders' Equity Note Disclosure [Text Block] | Note 2 – Share Repurchase ProgramOn October 31, 2018, the Company’s Board of Directors approved a share repurchase program (the “Share Repurchase Program”) which became effective on November 1, 2018, under which the Company is authorized to purchase up to 2.5 million shares of its outstanding common stock over a period not to exceed twelve months.Under the Share Repurchase Program, shares may be purchased in open market transactions, including through block purchases, through privately negotiated transactions, or pursuant to any trading plan that may be adopted in accordance with Rule 10b5 -1 of the Securities Exchange Act of 1934. The timing, manner, price and amount of any repurchase will be determined at the Company’s discretion and the Share Repurchase Program may be suspended, terminated or modified by the Company’s Board of Directors at any time for any reason and does not obligate the Company to purchase any specific number of shares. Under the Program, all purchases will be made in accordance with Securities Exchange Act Rule 10b -18, which sets certain restrictions on the method, timing, price and volume of open market stock repurchases.In 2018, we repurchased a total of 105,674 shares of our common stock under the Share Repurchase Program for an aggregate consideration (including fees and commissions) of $742. Subsequent to December 31, 2018 and through February 6, 2019, we repurchased a total of 267,100 shares of our common stock, bringing the total purchases under the Share Repurchase Program to 372,774 shares for an aggregate consideration of $2,697. |
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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 3 - Supplemental Balance Sheet Information |
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| Supplemental Balance Sheet Disclosures [Text Block] | Note 3 - Supplemental Balance Sheet Information
The Company had cash and restricted cash totaling $25,934 and $18,330 as of December 31, 2018 and 2017, respectively.
As of December 31, 2018, restricted cash includes a government grant awarded in the People’s Republic of China to fund specified technological research and development initiatives. The grant proceeds will be realized to income as a direct offset to expense as the related expenditures are incurred. For the year ended December 31, 2018, grant proceeds of $97 were realized as an offset to expense as expenditures were incurred. Restricted cash as of December 31, 2018 and 2017 includes deposits withheld by the Dutch tax authorities and third party VAT representatives in connection with a previously utilized logistics arrangement in the Netherlands. Restricted cash is included as a component of the cash balance for purposes of the consolidated statements of cash flows.
Inventories are stated at the lower of cost or net realizable value with cost determined under the first -in, first -out (FIFO) method. The composition of inventories, net was:
Major classes of property, plant and equipment consisted of the following:
Estimated costs to complete construction-in-progress as of December 31, 2018 and 2017 were approximately $2,870 and $5,136, respectively.Depreciation expense was $1,972 and $2,005 for the years ended December 31, 2018 and 2017, respectively.
The Company performed its annual impairment tests of goodwill and other indefinite-lived intangible assets as of the first day of the fiscal fourth quarter of 2018 and 2017. The Company performed a quantitative impairment test of its four identified goodwill reporting units. The fair value for the reporting units could not be determined using readily available quoted Level 1 inputs or Level 2 inputs that were observable in active markets. Therefore, we used a discounted cash flow model to estimate the fair value of the reporting units, using Level 3 inputs. To estimate the fair value of the reporting units, we used significant estimates and judgments, including an assessment of our future revenue prospects, revenue growth rates and profit margins based on internal forecasts, industry and market based terminal growth rates, inputs to the weighted-average cost of capital used to discount future cash flows, and earnings multiples.The Company performed a quantitative impairment test of its four other indefinite-lived intangible assets (trademarks). The fair value of our trademarks could not be determined using readily available quoted Level 1 inputs or Level 2 inputs that were observable in active markets. Therefore, we used a relief from royalty approach to estimate the fair value of our trademarks, using Level 3 inputs. Significant estimates and judgments included an assessment of our future revenue prospects, industry and market based terminal growth rates, inputs to the weighted-average cost of capital used to discount future cash flows, and royalty rates based on external market data.As a result of the impairment tests performed for 2018 and 2017, we determined that no impairments existed. Fair value exceeded carrying value for all reporting units and trademarks by more than 10%. There is a possibility that our goodwill and other intangible assets could be impaired in the future should there be a significant change in our internal forecasts and other assumptions used in our impairment analysis. The following table summarizes the goodwill activity by segment for the years ended December 31, 2018 and 2017:
The composition of intangible assets was:
The change in the cost value of other intangible assets is a result of the effect of foreign currency translations. Amortization of other intangible assets was included in the following financial statement captions:
Future amortization expense of amortizable intangible assets will be approximately $362, $349, $330, $315 and $312 for the fiscal years ending December 31, 2019 through 2023, respectively. |
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Note 4 - Debt |
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| Debt Disclosure [Text Block] | Note 4 - DebtCredit Facilities On May 31, 2017, Ultralife Corporation entered into a Credit and Security Agreement (the “Credit Agreement”) and related security agreements with KeyBank National Association (“KeyBank” or the “Bank”) to establish a $30,000 senior secured, cash flow-based, revolving credit facility that includes a $1,500 letter of credit subfacility (the “Credit Facility”). The Credit Agreement provides that the Credit Facility may be increased with the Bank’s concurrence to $50,000 prior to the last six months of the term and is scheduled to expire on May 30, 2020. The Credit Facility replaces the Company’s asset-based revolving credit facility with PNC Bank National Association which expired in accordance with its terms on May 24, 2017 ( the “Prior Credit Agreement”).The Credit Facility provides the Company with an aggregate of up to $30,000 of loan and letter of credit availability determined based on a borrowing base formula. The Company may use advances under the Credit Facility for general working capital purposes, to reimburse drawings under letters of credit and to fund capital expenditures and acquisitions, all subject to the terms of the Credit Agreement. The Company had no amounts drawn under the Prior Credit Agreement at the time of its expiration and has not borrowed under the Credit Facility.Interest will accrue on outstanding indebtedness under the Credit Agreement at the Overnight LIBOR Rate plus the applicable margin, or at the Base Rate plus the applicable margin, as selected by the Company. Beginning April 2, 2018 and thereafter, the applicable margins will be determined based on the chart below.
The Company must pay a fee on its unused availability equal to the applicable margin for the Unused Fee and customary letter of credit fees. In addition to the affirmative and negative covenants, the Company must maintain a fixed charge coverage ratio of 1.15 to 1.0, tested each fiscal quarter for the trailing four fiscal quarters, and a minimum tangible net worth of $40,000, tested as of the end of each calendar year. The Company was in full compliance with its covenants as of December 31, 2018. Any outstanding borrowings must be repaid upon expiration of the term of the Credit Facility. Payments must be made during the term to the extent outstanding borrowings exceed the maximum amount then permitted to be drawn as borrowings under the Credit Facility and from the proceeds of certain transactions. Upon the occurrence of an event of default, the outstanding obligations of the Company under the Credit Facility may be accelerated in addition to the other remedies available to the Bank under the terms of the Credit Agreement. The Credit Facility is secured by substantially all the assets of the Company.As of December 31, 2018, we had no outstanding balance under the Credit Facility and no outstanding letters of credit related to the Credit Facility. |
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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 5 - Commitments and Contingencies |
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| Commitments and Contingencies Disclosure [Text Block] | Note 5 - Commitments and Contingencies
Our organizational documents provide that our directors or officers will be reimbursed for all expenses, to the fullest extent permitted by law arising out of their performance.
As of December 31, 2018, we have made commitments to purchase approximately $2,848 of production machinery and equipment.
We lease various buildings, machinery, land, automobiles and office equipment. Rental expenses for all operating leases were approximately $716 and $660 for the years ended December 31, 2018 and 2017, respectively. Future minimum lease payments under non-cancelable operating leases as of December 31, 2018 are as follows:
Our operating facility in China presents risks including, but not limited to, changes in local regulatory requirements, changes in labor laws, local wage laws, environmental regulations, taxes and operating licenses, compliance with U.S. regulatory requirements, including the Foreign Corrupt Practices Act, uncertainties as to application and interpretation of local laws and enforcement of contract and intellectual property rights, currency restrictions, currency exchange controls, fluctuations of currency, and currency revaluations, eminent domain claims, civil unrest, power outages, water shortages, labor shortages, labor disputes, increase in labor costs, rapid changes in government, economic and political policies, political or civil unrest, acts of terrorism, or the threat of boycotts, other civil disturbances and the possible impact of the imposition of tariffs by the U.S. Government on 9 Volt batteries that we manufacture in China as well as any retaliating trade policies or restrictions. Any such disruptions could depress our earnings and have other material adverse effects on our business, financial condition and results of operations.
We have an employment contract with Michael D. Popielec, our President and Chief Executive Officer, which remains in effect until terminated by either party. This agreement provides for a base salary, as adjusted for increases at the discretion of our Board of Directors, and includes incentive bonuses based upon attainment of specified quantitative and qualitative performance goals. This agreement also provides for severance payments in the event of specified events of termination of employment. In addition, this agreement provides for a lump sum payment in the event of termination of employment in connection with a change in control. As part of our employment commencement process, employees are required to enter into agreements providing for confidentiality of certain information and the assignment of rights to inventions made by them while employed by us. These agreements also contain certain non-competition and non-solicitation provisions effective during the employment term and for varying periods thereafter depending on position and location. There can be no assurance that we will be able to enforce these agreements. All of our employees agree to abide by the terms of a Code of Ethics policy that provides for the confidentiality of certain information received during the course of their employment.
We estimate future warranty costs to be incurred for product failure rates, material usage and service costs in the development of our warranty obligations. Estimated future costs are based on actual past experience and are generally estimated as a percentage of sales over the warranty period. Changes in our product warranty liability during the years ended December 31, 2018 and 2017 were as follows:
We are subject to legal proceedings and claims that arise in the normal course of business. We believe that the final disposition of such matters will not have a material adverse effect on our financial position, results of operations or cash flows.Dreamliner Litigation In July 2013, an unoccupied Boeing 787 Dreamliner aircraft operated by Ethiopian Airlines was damaged by fire while parked at London Heathrow Airport. Following an investigation of this incident conducted by U.K. and U.S. regulatory authorities as well as by the manufacturer of the aircraft, a final report was issued by the Air Accidents Investigative Branch – UK Civil Aviation regulatory authority, with findings indicating that the fire was primarily caused by circumstances related to the plane’s emergency locator transmitter (“ELT”) manufactured and installed by another company. A component of the ELT is a battery pack which incorporates Ultralife’s industry-standard lithium manganese dioxide non-rechargeable D-cell, which Ultralife has produced since 2001, with wide-use in global defense and commercial applications.On May 4, 2015, we were notified of a lawsuit in which we were named, along with other suppliers to the aircraft manufacturer, concerning that 2013 fire, which was filed by Ethiopian Airlines Enterprise in the Commercial Court, Queen’s Bench Division of the High Court of Justice, London. We immediately referred this matter to our insurers.This lawsuit has now been resolved ( February 2018), the claimant has terminated the action against the Company, and the Court has acknowledged and consented to this termination. The matter was terminated without financial consequences to the Company. |
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Note 6 - Shareholders' Equity |
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| Shareholders' Equity and Share-based Payments [Text Block] | Note 6 - Shareholders' Equity
We recorded non-cash stock compensation expense in each period as follows:
These are more fully discussed as follows:
We have various stock-based employee compensation plans, for which compensation cost is recognized in the financial statements. The cost is measured at the grant date, based on the estimated fair value of the award, and is recognized as an expense over the employee’s requisite service period (generally the vesting period of the equity award). Our shareholders have approved various equity-based plans that permit the grant of stock options, restricted stock and other equity-based awards. In addition, our shareholders have approved the grant of stock options outside of these plans. In June 2004, our shareholders adopted the 2004 Long-Term Incentive Plan (“2004 LTIP”) pursuant to which we were authorized to issue up to 750,000 shares of common stock and grant stock options, restricted stock awards, stock appreciation rights and other stock-based awards. Through shareholder approved amendments to the LTIP in 2006, 2008, 2011, and 2013, the total number of shares authorized under the 2004 LTIP was increased to 2,900,000. In June 2014, our shareholders approved the 2014 Long-Term Incentive Plan (“2014 LTIP”) as the successor plan to the 2004 LTIP that expired on June 10, 2014. Under the 2014 LTIP, a total of 1,750,000 shares of common stock will be available for grant of awards. However, of the total number of shares of common stock available for awards under the 2014 LTIP, no more than 800,000 shares of common stock may be used for awards other than stock options and stock appreciation rights. Grants under the 2014 LTIP may be awarded through June 2, 2024. Stock options granted under the LTIPs are either Incentive Stock Options (“ISOs”) or Non-Qualified Stock Options (“NQSOs”). Key employees are eligible to receive ISOs and NQSOs; however, directors and consultants are eligible to receive only NQSOs. Most ISOs vest over a three - year period and expire on the seventh anniversary of the grant date. As of December 31, 2018, there were 727,649 stock options outstanding under the 2004 LTIP and 848,438 stock options outstanding under the 2014 LTIP.On December 30, 2010, pursuant to the terms of his employment agreement, we granted our President and Chief Executive Officer, Michael D. Popielec, options to purchase shares of common stock under the 2004 LTIP as follows: (i) 50,000 shares at $6.42, vesting in annual increments of 12,500 shares over a four -year period commencing December 30, 2011; ( ii) 250,000 shares at $6.42, vesting in annual increments of 62,500 shares over a four -year period commencing December 30, 2011; ( iii) 200,000 shares at $10.00, with vesting to begin on the date the stock reaches a closing price of $10.00 per share for 15 trading days within a 30 -day trading period, with such vesting in annual increments of 50,000 shares over the four anniversary dates of that date; and (iv) 200,000 shares at $15.00, with vesting to begin on the date the stock reaches a closing price of $15.00 per share for 15 trading days within a 30 -day trading period, with such vesting in annual increments of 50,000 shares over the four anniversary dates of that date. The options set forth in items (ii), (iii) and (iv) were subject to shareholder approval of an amendment to the 2004 LTIP, which approval was obtained on June 7, 2011. All such options in items (i) and (ii) were due to expire on December 30, 2017. On April 19, 2017, the Company’s Board of Directors extended the expiration date to December 30, 2020. Pursuant to Accounting Standards Codification Topic 718, Compensation – Stock Compensation, the transaction was accounted for as an equity award modification. During the second quarter of 2017, the Company recognized compensation cost of $193 representing the incremental fair value of the modified award computed as of the modification date as the difference between the fair value of the modified award and the fair value of the original award immediately before it was modified. The incremental fair value was determined using the Black-Scholes model.All such options in items (iii) and (iv) were due to expire as of the later of December 30, 2017 and five years after the initial vesting commences, but in no event later than December 30, 2020. On July 25, 2018, the Company’s Board of Directors modified the option in item (iii) such that the option will vest immediately upon the Company’s common stock first reaching a closing price $10.00 for 15 trading days in a 30 trading-day period. The option became fully vested during the third quarter of 2018 and expires December 30, 2020. The transaction has been accounted for as an equity award modification pursuant to Accounting Standards Codification Topic 718, Compensation – Stock Compensation. During the third quarter 2018, the Company recognized compensation cost of $182 representing the incremental fair value of the modified award computed as of the modification date as the difference between the fair value of the modified award and the fair value of the original award immediately before it was modified. The incremental fair value was determined using a Monte Carlo simulation option-pricing model consistent with the valuation methodology used to value and recognize the original award. The market-based conditions for the option in item (iv) had not been met as of December 31, 2018. On January 3, 2011, pursuant to the terms of his employment agreement, we granted our President and Chief Executive Officer, Michael D. Popielec, an option to purchase 50,000 shares of common stock at $6.58 under the 2004 LTIP. The option vested in annual increments of 12,500 shares over a four -year period commencing December 30, 2011. The option expired on December 30, 2017. As of December 31, 2018, there was $521 of total unrecognized compensation costs related to outstanding stock options, which we expect to recognize over a weighted average period of 0.9 years.We use the Black-Scholes option-pricing model to estimate fair value of stock-based awards. The following weighted average assumptions were used to value options granted during the years ended December 31, 2018 and 2017:
We used a Monte Carlo simulation option-pricing model to estimate the fair value of market performance stock-based awards, of which there were no new awards for the years ended December 31, 2018 and 2017. We calculate expected volatility for stock options by taking an average of historical volatility over the expected term. The computation of expected term was determined based on historical experience of similar awards, giving consideration to the contractual terms of the stock-based awards and vesting schedules. The interest rate for periods within the contractual life of the award is based on the U.S. Treasury yield in effect at the time of grant. Forfeiture rates are calculated by dividing unvested shares forfeited by beginning shares outstanding. The pre-vesting forfeiture rate is calculated yearly and is determined using a historical twelve -quarter rolling average of the forfeiture rates.The following tables summarize data for the stock options issued by us:
The following table represents additional information about stock options outstanding at December 31, 2018:
The weighted average fair value of options granted during the years ended December 31, 2018 and 2017 was $4.22 and $2.47, respectively. The total intrinsic value of options (which is the amount by which the stock price exceeded the exercise price of the options on the date of exercise) exercised during the years ended December 31, 2018 and 2017 was $1,722 and $588, respectively.Cash received from option exercises under our stock-based compensation plans for the years ended December 31, 2018 and 2017 was $1,568 and $1,429, respectively.
During 2014, we awarded 49,200 restricted stock units under the 2014 LTIP to certain key employees. These units vest over three years and we estimated their weighted average grant date fair value to be $3.24 per share. $11 of expense was recorded in 2017 relating to these awards. In September 2017, 12,900 shares of the awarded restricted stock vested and the Company repurchased 3,959 shares to satisfy the statutory tax withholding on shares vested for certain employees. Unrecognized compensation cost related to these restricted shares was $0 at December 31, 2018 and 2017. In January 2018, 17,500 shares of restricted stock were awarded to certain of our employees. These shares vest in equal annual installments over three years. The weighted average grant date fair value of these awards was $7.16 per share. $73 of expense was recorded in 2018 relating to these awards. Unrecognized compensation cost related to these restricted shares was $52 at December 31, 2018.
There were 726,858 shares of common stock available for future issuance under equity compensation plans as of December 31, 2018. |
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- Definition The entire disclosure for accounts comprising shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income, and compensation-related costs for equity-based compensation. Includes, but is not limited to, disclosure of policies, compensation plan details, equity-based arrangements to obtain goods and services, deferred compensation arrangements, and employee stock purchase plan details. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 7 - Income Taxes |
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| Income Tax Disclosure [Text Block] | Note 7 - Income Taxes For the years ended December 31, 2018 and 2017, we recognized an income tax benefit of $18,386 and $1,369, respectively.
The income tax benefit for 2018 primarily represents a non-cash benefit of $18,652 upon recognizing the release of the valuation allowance on our U.S. deferred tax assets as of December 31, 2018. The income tax benefit for 2017 primarily represents a one -time, non-cash benefit of $1,939 for the revaluation of deferred tax liabilities on goodwill and certain other intangible assets upon the enactment of the Tax Cuts and Jobs Act (the “Tax Act”).As of December 31, 2018, the Company recognized the release of the valuation allowance on our net operating loss carryforwards and other U.S. deferred tax assets on the basis of management’s assessment. In evaluating the realizability of our U.S. deferred tax assets, management considered all available evidence and concluded that positive factors, including further demonstration of sustained profitability in our core business and continued improvement in our ability to achieve internal earnings forecasts, outweighed all negative factors, including our history of operating losses (prior to 2015 ) and historical operating volatility in our core business. Our assessment also considered our expectation to utilize our domestic net operating loss carryforwards of $63,388, which expire 2019 thru 2035, and our general business tax credits of $1,817, which expire 2028 thru 2037. Based on the results of our assessment, management concluded that it is more likely than not that our U.S. deferred tax assets will be fully realized.As of December 31, 2018 and 2017, for certain past operations in the U.K., we continue to report a valuation allowance for net operating loss carryforwards of approximately $10,220, nearly all of which can be carried forward indefinitely. Management has concluded that the realizability of the U.K. net operating loss carryforwards is not more likely than not, as utilization of the net operating losses may be limited due to the change in the past U.K. operation. These net operating losses in the U.K. cannot currently be used to reduce taxable income at our other U.K. subsidiary, Accutronics Ltd. There are no other deferred tax assets related to the past U.K. operations. As of December 31, 2018 and 2017, we have not recognized a valuation allowance against our other foreign deferred tax assets, as we believe that it is more likely than not that they will be realized. We will continue to evaluate the realizability of our deferred tax assets in future periods.Deferred income taxes reflect the net tax effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amount used for income tax purposes. Significant components of our deferred tax assets and liabilities are as follows:
Net deferred tax assets (liabilities) are comprised of the following balance sheet amounts:
For the year ended December 31, 2018, the valuation allowance for deferred tax assets decreased by $19,662 primarily due to the realization of the U.S. deferred tax assets as of December 31, 2018. For the year ended December 31, 2017, the valuation allowance decreased by $10,695 due to the reduction of U.S. deferred tax assets due to the Company’s pretax income as well as the revaluation of the deferred taxes due to the enactment of the Tax Cuts and Jobs Act.On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act. The Tax Act makes broad and complex changes to the U.S. tax code, including, but not limited to (1 ) reducing the U.S. federal corporate tax rate from 35 percent to 21 percent; (2 ) elimination of the corporate alternative minimum tax (AMT) and changing how existing AMT credits can be realized; (3 ) changing rules related to usage and limitation of net operating loss carryforwards created in tax years beginning after December 31, 2017; ( 4 ) generally eliminating U.S. federal income taxes on dividends from foreign subsidiaries for tax years beginning after December 31, 2017; and (5 ) implementing a territorial tax system and imposing a transition toll tax on deemed repatriated earnings of foreign subsidiaries. The Act reduced the U.S. corporate tax rate to 21 percent, effective January 1, 2018. Deferred tax assets and liabilities were revalued from 35 percent to 21 percent upon enactment of the Tax Act.The Act provided for a one -time deemed mandatory repatriation for post-1986 undistributed foreign subsidiary earnings and profits (“E&P”) through the year ended December 31, 2017. The Company had a deficit in foreign E&P and was not expected to be subject to the deemed mandatory repatriation.On December 22, 2017, the SEC staff issued Staff Accounting Bulletin No. 118 to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Tax Act. The Company had recognized the provisional tax effects related to the revaluation of deferred tax assets and liabilities for the year ended December 31, 2017. As of December 31, 2017, we had completed the majority of our accounting for the effects of the Tax Act. As of December 31, 2018, we have completed our evaluation of the effects of the Tax Act and concluded that no revisions are necessary.Effective January 1, 2017, the Company adopted ASU 2016 -09, Compensation - Stock Compensation (Topic 718 ): Improvement to Employee Share-Based Payment Accounting. Upon adoption, the Company recognized a gross deferred tax asset of $1,123 and a corresponding valuation allowance in the same amount resulting in no net deferred tax asset recognition. As of December 31, 2018, the Company has realized the benefit of this deferred tax asset upon release of the U.S. valuation allowance.At December 31, 2018, the Company maintains its assertion that all foreign earnings will be indefinitely reinvested in those operations.For financial reporting purposes, income from continuing operations before income taxes is as follows:
The provision for income taxes differs from the amount of income tax determined by applying the applicable U.S. statutory federal income tax rate to income from continuing operations before income taxes as follows:
Accounting for Uncertainty in Income Taxes There were no unrecognized tax benefits related to uncertain tax positions at December 31, 2018 and 2017. As a result of our operations, we file income tax returns in various jurisdictions including U.S. federal, U.S. state and foreign jurisdictions. We are routinely subject to examination by taxing authorities in these various jurisdictions. Our U.S. tax matters for the years 2000 through 2018 remain subject to examination by the Internal Revenue Service (“IRS”) due to our net operating loss carryforwards. Our U.S. tax matters for the years 2000 through 2018 remain subject to examination by various state and local tax jurisdictions due to our net operating loss carryforwards. Our tax matters for the years 2010 through 2018 remain subject to examination by the respective foreign tax jurisdiction authorities. |
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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 8 - 401(k) Retirement Benefit Plan |
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| Notes to Financial Statements | |
| Pension and Other Postretirement Benefits Disclosure [Text Block] | Note 8 - 401 (k) Retirement Benefit Plan We maintain a defined contribution 401 (k) plan covering substantially all employees. Employees can contribute a portion of their salary or wages as prescribed under Section 401 (k) of the Internal Revenue Code and, subject to certain limitations, we may, at the discretion of our Board of Directors, authorize an employer contribution based on a portion of the employees' contributions. For the years ended December 31, 2018 and 2017, the Company matched 50% first 4% 2% 2018 and 2017, we contributed $204 and $181, respectively, to the 401 (k) plan. |
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- Definition The entire disclosure for pension and other postretirement benefits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 9 - Business Segment Information |
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| Segment Reporting Disclosure [Text Block] | Note 9 - Business Segment Information We report our results in two operating segments: Battery & Energy Products and Communications Systems. The Battery & Energy Products segment includes: Lithium 9 -volt, cylindrical and various other non-rechargeable batteries, in addition to rechargeable batteries, uninterruptable power supplies, charging systems and accessories. The Communications Systems segment includes: RF amplifiers, power supplies, cable and connector assemblies, amplified speakers, equipment mounts, case equipment, man-portable systems, integrated communication systems for fixed or vehicle applications and communications and electronics systems design. We believe that reporting performance at the gross profit level is the best indicator of segment performance. 2018:
2017:
Long-lived assets (including goodwill and intangible assets) held outside the U.S., principally in the United Kingdom and China, were $11,502 and $12,443 at December 31, 2018 and 2017, respectively.U.S. and Non-U.S. Revenue Information 1 :
1 may serve non-U.S. projectsCommercial and Government/Defense Revenue Information:
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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Significant Accounting Policies (Policies) |
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| Accounting Policies [Abstract] | ||||||||||||||||||||||||||||||||||||||
| Consolidation, Policy [Policy Text Block] |
The consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and include the accounts of Ultralife Corporation, our wholly-owned subsidiaries, Ultralife Batteries (UK) Ltd., Ultralife UK LTD, and its wholly-owned subsidiary Accutronics Ltd, ABLE New Energy Co., Limited and its wholly-owned subsidiary ABLE New Energy Co., Ltd. (“ABLE” collectively), and our majority-owned subsidiary Ultralife Batteries India Private Limited (“India JV”). Intercompany accounts and transactions have been eliminated in consolidation. |
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| Use of Estimates, Policy [Policy Text Block] |
The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at year end and the reported amounts of revenues and expenses during the reporting period. Key areas affected by estimates include: (a) carrying value of goodwill and intangible assets; (b) reserves for deferred tax assets, excess and obsolete inventory, warranties, and bad debts; (c) valuation of assets acquired and liabilities assumed in business combinations; (d) various expense accruals; and (e) stock-based compensation. Our actual results could differ from these estimates. |
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| Reclassification, Policy [Policy Text Block] |
Certain items previously reported in specific financial statement captions are reclassified to conform to the current presentation. There were no material reclassifications for the years ended December 31, 2018 and 2017. |
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| Cash and Cash Equivalents, Policy [Policy Text Block] |
Our cash balances may at times exceed federally insured limits. We have not experienced any losses in these accounts and believe we are not exposed to any significant risk with respect to cash. |
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| Receivables, Policy [Policy Text Block] |
We extend credit to our customers in the normal course of business. We perform ongoing credit evaluations and generally do not require collateral. Payment terms are generally 30 days. Trade accounts receivable are recorded at their invoiced amounts, net of allowance for doubtful accounts. We evaluate the adequacy of our allowance for doubtful accounts quarterly. Accounts outstanding for longer than contractual payment terms are considered past due and are reviewed for collectability. We maintain reserves for potential credit losses based upon our historical experience and the aging of specific receivables. Receivable balances are written off when collection is deemed unlikely. |
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| Inventory, Policy [Policy Text Block] |
Inventories are stated at the lower of cost or net realizable value with cost determined under the first -in, first -out (FIFO) method. We record provisions for excess, obsolete or slow-moving inventory based on changes in customer demand, technology developments or other economic factors. |
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| Property, Plant and Equipment, Policy [Policy Text Block] |
Property, plant and equipment are stated at cost. Depreciation and amortization are computed using the straight-line method over the estimated useful lives. Estimated useful lives are as follows (in years):
Betterments, renewals and extraordinary repairs that extend the life of the assets are capitalized. Other repairs and maintenance costs are expensed when incurred. When disposed, the cost and accumulated depreciation applicable to assets retired are removed from the accounts and the gain or loss on disposition is recognized in operating income. |
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| Goodwill and Intangible Assets, Policy [Policy Text Block] |
We assess all of our long-lived assets for impairment when events or circumstances indicate that their carrying amounts may not be recoverable. For property, plant and equipment and amortizable intangible assets, this is accomplished by comparing the expected undiscounted future cash flows of the assets with the respective carrying amount as of the date of assessment. Should aggregate future cash flows be less than the carrying value, a write-down would be required, measured as the difference between the carrying value and the fair value of the asset. Fair value is estimated as the present value of expected discounted future cash flows. The discount rate used in our evaluation is an industry-based weighted average cost of capital. If the expected undiscounted future cash flows exceed the respective carrying amount as of the date of assessment, no impairment is recognized.The purchase price paid to effect an acquisition is allocated to the acquired tangible and intangible assets and liabilities at fair value. We do not amortize goodwill and intangible assets with indefinite lives, but instead evaluate these assets for impairment at least annually, or when events indicate that impairment exists. We amortize intangible assets that have definite lives so that the economic benefits of the intangible assets are being recognized over their weighted-average estimated useful life.The quantitative impairment test for goodwill consists of a comparison of the fair value of the reporting unit with the carrying amount of the reporting unit to which it is assigned. If the fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is considered not impaired. If the carrying amount of a reporting unit exceeds its fair value, a second step of the goodwill impairment test is performed to measure the amount of impairment loss, if any. The impairment test for intangible assets with indefinite lives consists of a comparison of the fair value of the intangible assets with their carrying amounts. If the carrying value of the intangible assets exceeds the fair value, an impairment loss is recognized in an amount equal to that excess. |
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| Foreign Currency Transactions and Translations Policy [Policy Text Block] |
The financial statements of our foreign subsidiaries are translated from the functional currency into U.S. dollar equivalents, with translation adjustments recorded as the sole component of accumulated other comprehensive loss. Exchange gains and losses related to foreign currency transactions and balances denominated in currencies other than the functional currency are recognized in net income. |
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| Revenue Recognition, Policy [Policy Text Block] |
Effective January 1, 2018, the Company adopted Accounting Standards Update 2014 -09 (Topic 606 ) “Revenue from Contracts with Customers”. Adoption of Topic 606 did not impact the timing of revenue recognition in our consolidated financial statements for the current or prior periods. Accordingly, no adjustments have been made to opening retained earnings or prior period amounts. See Note 9 for disaggregated revenue information.Revenues are generated from the sale of products. Performance obligations are met and revenue is recognized upon transfer of control to the customer, which is generally upon shipment. When contract terms require transfer of control upon delivery at a customer’s location, revenue is recognized on the date of delivery. Revenue is measured as the amount of consideration we expect to receive in exchange for shipped product. Sales, value-added and other taxes billed and collected from customers are excluded from revenue. Customers, including distributors, do not have a general right of return. For products shipped under vendor managed inventory arrangements, revenue is recognized and billed when the product is consumed by the customer, at which point control has transferred and there are no further obligations by the Company.Revenues recognized from prior period performance obligations for the year ended December 31, 2018 were not material.As of December 31, 2018, the Company had no unsatisfied performance obligations for contracts with an original expected duration of greater than one year. Pursuant to Topic 606, we have applied the practical expedient with respect to disclosure of the deferral and future expected timing of revenue recognition for transaction price allocated to remaining performance obligations.Deferred revenue, unbilled revenue and deferred contract costs recorded on our consolidated balance sheets as of December 31, 2018 and 2017 were not material. |
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| Guarantees, Indemnifications and Warranties Policies [Policy Text Block] |
We generally offer standard warranties against product defects. We do not offer separate service-type warranties. We estimate future warranty costs to be incurred for product failure rates, material usage and service costs in the development of our warranty obligations. Estimated future costs are based on actual past experience and are generally estimated as a percentage of sales over the warranty period. Warranty costs are recorded as costs of products sold. Provision for warranty costs is recorded in other current liabilities and other long-term liabilities on our consolidated balance sheets based on the duration of the warranty. |
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| Shipping and Handling Costs [Policy Text Block] |
Costs incurred by us related to shipping and handling are included in cost of products sold. Amounts charged to customers pertaining to these costs are reflected as revenue. |
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| Sales Commissions [Policy Text Block] |
Sales commissions are expensed as incurred for contracts with an expected duration of one year or less. There were no sales commissions capitalized as of December 31, 2018. |
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| Research and Development Expense, Policy [Policy Text Block] |
Research and development expenditures are charged to operations as incurred. The majority of research and development expenses pertain to salaries and benefits, developmental supplies, depreciation and other contracted services. For the years ended December 31, 2018 and 2017, we expended $4,905 and $5,142, respectively, on research and development, including $397 and $405, respectively, on customer sponsored research and development activities, which are included in cost of goods sold. We recognized $397 and $405 of revenue relating to these activities for the years ended December 31, 2018 and 2017, respectively. |
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| Environmental Cost, Expense Policy [Policy Text Block] |
Environmental expenditures that relate to current operations are expensed. Remediation costs that relate to an existing condition caused by past operations are accrued when it is probable that these costs will be incurred and can be reasonably estimated. |
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| Income Tax, Policy [Policy Text Block] |
We account for income taxes using the asset and liability method. Under this method, deferred tax assets and liabilities are determined based on differences between financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates and laws that are expected to be in effect when the differences are expected to reverse. Pursuant to ASC 740, a valuation allowance is recognized when the realizability of deferred tax assets is not more likely than not, on the basis of all available evidence, both positive and negative, weighted based on objective verifiability. |
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| Concentration Risk, Credit Risk, Policy [Policy Text Block] |
We have one major customer, a large defense primary contractor, which comprised 16% and 18% of our revenues in 2018 and 2017, respectively. There were no other customers that comprised greater than 10% of our total revenues during these years.Currently, we do not experience significant seasonal trends in our revenues. Since a significant portion of our revenues are based on purchases from U.S. and allied country defense departments, the timing of our sales could be impacted by delays in the government budget process and the decisions to deploy resources to support military purchases of our products.We generally do not distribute our products to a concentrated geographical area nor is there a significant concentration of credit risks arising from individuals or groups of customers engaged in similar activities, or who have similar economic characteristics. While direct and indirect sales to the U.S. Department of Defense have been substantial during 2018 and 2017, we do not consider this customer to be a significant credit risk.Certain materials and components used in our products are available only from a single or a limited number of suppliers. As such, some materials and components could become in short supply resulting in limited availability and/or increased costs. Additionally, we may elect to develop relationships with a single or limited number of suppliers for materials and components that are otherwise generally available. Although we believe that alternative suppliers are available to supply materials and components that could replace materials and components currently used and that, if necessary, we would be able to redesign our products to make use of such alternatives, any interruption in the supply from any supplier that serves as a sole source could delay product shipments and have a material adverse effect on our business, financial condition and results of operations. We have experienced interruptions of product deliveries by sole source suppliers in the past. |
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| Fair Value Measurement, Policy [Policy Text Block] |
Fair value is defined as the price that would be received for an asset or the exit price that would be paid to transfer a liability in the principal or most advantageous market in an orderly transaction between market participants on the measurement date. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:
The fair value of financial instruments approximated their carrying values at December 31, 2018 and 2017. The fair value of cash, trade accounts receivable, trade accounts payable, and accrued liabilities approximates carrying value due to the short-term nature of these instruments. |
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| Earnings Per Share, Policy [Policy Text Block] |
Basic earnings per share (“EPS”) is computed by dividing net income attributable to Ultralife Corporation by the weighted average shares of common stock outstanding for the period. Diluted EPS reflects the assumed exercise and conversion of dilutive outstanding stock options and unvested restricted stock, if any, applying the treasury stock method. For the year ended December 31, 2018, the calculation of diluted EPS included 1,127,837 stock options and 17,500 restricted stock awards. Inclusion of these shares resulted in 465,004 additional shares in the calculation of diluted EPS. There were 448,250 outstanding stock options as of December 31, 2018 excluded from the calculation of diluted EPS, as inclusion of these shares would have been anti-dilutive.For the year ended December 31, 2017, the calculation of diluted EPS included 1,035,711 stock options. Inclusion of these shares resulted in 330,676 additional shares in the calculation of diluted EPS. There were no unvested restricted stock units as of December 31, 2017. 824,500 outstanding stock options as of December 31, 2017 were excluded from the calculation of diluted EPS, as inclusion of these shares would have been anti-dilutive. |
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| Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] |
We have various stock-based employee compensation plans that are described more fully in Note 6. The compensation cost relating to share-based payment transactions is measured at the grant date, based on the estimated fair value of the award, and is recognized as expense over the employee’s requisite service period (generally the vesting period of the equity award). |
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| Segment Reporting, Policy [Policy Text Block] |
We have two operating segments – Battery & Energy Products, and Communications Systems. The basis for determining our operating segments is the manner in which financial information is used in monitoring our operations. Management operates and organizes itself according to business units that comprise unique products and services across geographic locations. |
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| New Accounting Pronouncements, Policy [Policy Text Block] |
In May 2014, the FASB issued ASU 2014 -09 (Topic 606 ) “Revenue from Contracts with Customer”. Under this standard, revenue is recognized when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. The new standard will replace most existing revenue recognition guidance under GAAP and permits the use of either the retrospective or cumulative effect transition method. Topic 606 is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. The Company adopted Topic 606 effective January 1, 2018. Adoption of Topic 606 did not impact the timing of revenue recognition in our consolidated financial statements for the current or prior periods. Accordingly, no adjustments have been made to opening retained earnings or prior period amounts. Adoption of this standard required additional disclosure which can be found in Notes 1 and 9. In November 2016, the FASB issued ASU 2016 -18, “Statement of Cash Flows (Topic 230 ): Restricted Cash”. The standard is effective for fiscal years beginning after December 31, 2017, and interim periods within those fiscal years, and should be applied using a retrospective transition method for each period presented. The standard requires that amounts generally described as restricted cash and restricted cash equivalents be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total cash amounts shown on the statements of cash flows. The Company has adopted this standard effective January 1, 2018. As a result, restricted cash has been included in the total cash amounts on the consolidated statement of cash flows for all periods presented and the required disclosures have been included in the notes to consolidated financial statements. There was no impact to the Company’s consolidated statements of income as a result of adopting this new accounting standard.In August 2016, the FASB issued Accounting Standards Update 2016 -15, “Statement of Cash Flows (Topic 230 ), Classification of Certain Cash Receipts and Cash Payments”. The standard makes eight targeted changes to how cash receipts and cash payments are presented and classified in the statement of cash flows. The standard is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The standard requires adoption on a retrospective basis unless it is impracticable to apply, in which case the Company would be required to apply the amendments prospectively as of the earliest date practicable. The Company has adopted this standard effective January 1, 2018. Adoption of this standard did not impact our consolidated financial statements.In May 2017, the FASB issued ASU 2017 -09, “Compensation – Stock Compensation (Topic 718 ) – Scope of Modification Accounting”, which provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The standard is effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. The standard is to be applied on a prospective basis to an award modified on or after the adoption date. The Company has adopted this standard effective January 1, 2018. Adoption of this standard did not impact our consolidated financial statements.In October 2016, the FASB issued ASU 2016 -16, “Income Taxes (Topic 740 ), Intra-Entity Transfers of Assets Other Than Inventory”. The new guidance requires that entities recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs, rather than when the asset is sold to an outside party. The standard is effective for annual reporting periods beginning after December 15, 2017, including interim periods within those annual reporting periods. Early adoption is permitted. The new guidance requires adoption on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company has adopted this standard effective January 1, 2018. Adoption of this standard did not impact our consolidated financial statements.In March 2018, the FASB issued ASU 2018 -05, “Income Taxes (Topic 740 ): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118”. The standard adds various Securities and Exchange Commission (“SEC”) paragraphs pursuant to the issuance of the December 2017 SEC Staff Accounting Bulletin No. 118, “Income Tax Accounting Implications of the Tax Cuts and Jobs Act” (“SAB 118” ), which was effective immediately. The SEC issued SAB 118 to address concerns about reporting entities’ ability to timely comply with the accounting requirements to recognize all of the effects of the Tax Cuts and Jobs Act (the “Tax Act”) in the period of enactment. SAB 118 allows disclosure that timely determination of some or all of the income tax effects from the Tax Act are incomplete by the due date of the financial statements and if possible to provide a reasonable estimate. Refer to Note 7 for discussion of our final determination of the effects of the Tax Act on our consolidated financial statements.In February 2016, the FASB issued ASU 2016 -02, “Leases”, which requires that lessees recognize a right-to-use asset and related lease liability for all significant financing and operating leases not considered short-term leases, and specifies where in the statement of cash flows the related lease payments are to be presented. The guidance is effective for years beginning after December 15, 2018 and early adoption is permitted. The Company has adopted the new lease standard effective January 1, 2019. The impact of adoption will be the recognition of a right-to-use asset and corresponding lease liability on the Company’s consolidated balance sheet. Adoption of the new lease standard will not have a significant impact on the Company’s consolidated statement of income.In January 2017, the FASB issued ASU 2017 -04, “Intangibles – Goodwill and Other (Topic 350 ) – Simplifying the Test for Goodwill Impairment”, which eliminates the two -step process that required identification of potential impairment and a separate measure of the actual impairment. The annual assessment of goodwill impairment will be determined by using the difference between the carrying amount and the fair value of the reporting unit. The standard is effective for annual and interim impairment tests performed in periods beginning after December 15, 2019 and is to be applied on a prospective basis. The Company is currently assessing the impact that adopting this new accounting standard will have on our consolidated financial statements. |
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- Definition Disclosure of accounting policy for sales commissions. No definition available.
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- Definition Disclosure of accounting policy for the classification of shipping and handling costs, including whether the costs are included in cost of sales or included in other income statement accounts. If shipping and handling fees are significant and are not included in cost of sales, disclosure includes both the amounts of such costs and the line item on the income statement which includes such costs. No definition available.
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- References No definition available.
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- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for credit risk. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for environmental remediation costs that are expensed during the period that resulted from improper or other than normal operation of a long-lived asset. This accounting policy may address (1) whether the obligation is measured on a discounted basis, (2) the event, situation, or set of circumstances that generally triggers recognition of loss contingencies arising from the entity's environmental remediation-related obligations, and (3) the timing of recognition of any recoveries. This accounting policy does not address: (1) accounting for pollution control costs of current operations or for costs of future site restoration or closure that are required upon the cessation of operations or sale of facilities (2) environmental remediation actions that are undertaken at the sole discretion of management and that are not induced by the threat, by governments or other parties, of litigation or of assertion of a claim or an assessment (3) recognition of liabilities of insurance companies for unpaid claims or (4) asset impairment issues. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities. No definition available.
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- Definition Disclosure of accounting policy for (1) transactions denominated in a currency other than the reporting enterprise's functional currency, (2) translating foreign currency financial statements that are incorporated into the financial statements of the reporting enterprise by consolidation, combination, or the equity method of accounting, and (3) remeasurement of the financial statements of a foreign reporting enterprise in a hyperinflationary economy. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for guarantees, indemnifications and product warranties, and methodologies used in determining the amount of such liabilities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. No definition available.
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- Definition Disclosure of accounting policy for reclassifications that affects the comparability of the financial statements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for trade and other accounts receivable, and finance, loan and lease receivables, including those classified as held for investment and held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the valuation allowance for receivables is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions (8) the nature and amount of any guarantees to repurchase receivables. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for costs it has incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Disclosure of accounting policy for segment reporting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Note 1 - Summary of Operations and Significant Accounting Policies (Tables) |
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Note 3 - Supplemental Balance Sheet Information (Tables) |
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| Cash, Cash Equivalents and Investments [Table Text Block] |
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| Schedule of Inventory, Current [Table Text Block] |
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| Schedule of Goodwill [Table Text Block] |
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| Schedule of Finite-Lived Intangible Assets [Table Text Block] |
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| Finite-lived Intangible Assets Amortization Expense [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of amortization expense of assets, excluding financial assets, that lack physical substance, having a limited useful life. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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Note 4 - Debt (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Interest Rate Margins on Outstanding Debt [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of interest rate margins on outstanding debt. No definition available.
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| X | ||||||||||
- References No definition available.
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Note 5 - Commitments and Contingencies (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] |
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| Schedule of Product Warranty Liability [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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Note 6 - Shareholders' Equity (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] |
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| Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
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| Share-based Compensation, Stock Options, Activity [Table Text Block] |
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| Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
|
Note 7 - Income Taxes (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
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| Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
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| Schedule of Net Deferred Tax Liabilities [Table Text Block] | <div style="display: inline; font-family: times new roman; font-size: 10pt"><table border="0" cellpadding="0" cellspacing="0" style="margin-right: 15%; margin-left: 54pt; font-size: 10pt; font-family: "Times New Roman", Times, serif; text-indent: 0px; min-; min-width: 700px;"> <tr style="vertical-align: bottom;"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td colspan="6" style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-weight: bold;">Years Ended December 31,</div></div></div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> </tr> <tr style="vertical-align: bottom;"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td colspan="2" style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-weight: bold;">2018</div></div></div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px;"> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td colspan="2" style="text-align: center; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <div style=" font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-weight: bold;">2017</div></div></div> </td> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 1px;"> </td> </tr> <tr style="vertical-align: bottom;"> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204, 238, 255);"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt; width: 64%;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">Deferred Tax Assets</div> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">$</td> <td style="width: 15%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">15,444</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;">$</td> <td style="width: 15%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">32</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt;"> </td> </tr> <tr style="vertical-align: bottom; background-color: rgb(255, 255, 255);"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> <div style=" font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">Deferred Tax Liabilities</div> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"> </td> <td style="width: 15%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">(591</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"> </td> <td style="width: 15%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">(3,867</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204, 238, 255);"> <td style="font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td> <td style="width: 15%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">14,853</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt;"> </td> <td style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td> <td style="width: 15%; text-align: right; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><div style="display: inline; font-style: italic; font-weight: inherit; font-style: normal;">(3,835</div></td> <td nowrap="nowrap" style="width: 1%; font-family: "Times New Roman", Times, serif; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td> </tr> </table></div> | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
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| Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of the components of net deferred tax liability recognized in an entity's statement of financial position. No definition available.
|
| X | ||||||||||
- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
|
Note 9 - Business Segment Information (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Segment Reporting Information, by Segment [Table Text Block] |
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| Revenue from External Customers by Geographic Areas [Table Text Block] |
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| Schedule of Revenues from External Customers by Business Segment Sector [Table Text Block] |
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| X | ||||||||||
- Definition Tabular disclosure of material revenue from specific sectors of each business segment. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Represents the amount of R&D included in cost of goods sold that is customer funded. No definition available.
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| X | ||||||||||
- Definition Represents the number of major customers. No definition available.
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| X | ||||||||||
- Definition The gross costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. No definition available.
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| X | ||||||||||
- Definition Represents the amount of revenue recognized in R&D. No definition available.
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| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. No definition available.
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| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Note 1 - Summary of Operations and Significant Accounting Policies - Property, Plant and Equipment Estimated Useful Life (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2018 | |
| Building [Member] | Minimum [Member] | |
| Estimated useful lives (Year) | 10 years |
| Building [Member] | Maximum [Member] | |
| Estimated useful lives (Year) | 20 years |
| Machinery and Equipment [Member] | Minimum [Member] | |
| Estimated useful lives (Year) | 5 years |
| Machinery and Equipment [Member] | Maximum [Member] | |
| Estimated useful lives (Year) | 10 years |
| Furniture and Fixtures [Member] | Minimum [Member] | |
| Estimated useful lives (Year) | 3 years |
| Furniture and Fixtures [Member] | Maximum [Member] | |
| Estimated useful lives (Year) | 10 years |
| Computer Equipment [Member] | Minimum [Member] | |
| Estimated useful lives (Year) | 3 years |
| Computer Equipment [Member] | Maximum [Member] | |
| Estimated useful lives (Year) | 5 years |
| Leasehold Improvements [Member] | |
| Leasehold Improvements | Lesser of useful life or lease term |
| X | ||||||||||
- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Note 2 - Share Repurchase Program (Details Textual) - USD ($) $ in Thousands |
1 Months Ended | 12 Months Ended | |
|---|---|---|---|
Feb. 06, 2019 |
Dec. 31, 2018 |
Nov. 01, 2018 |
|
| Treasury Stock, Shares, Acquired | 105,674 | ||
| Treasury Stock, Value, Acquired, Cost Method | $ 742 | ||
| Subsequent Event [Member] | |||
| Treasury Stock, Shares, Acquired | 267,100 | ||
| Treasury Stock, Acquired, Aggregate Number of Shares | 372,774 | ||
| Treasury Stock, Acquired, Aggregate Value | $ 2,697 | ||
| Maximum [Member] | |||
| Stock Repurchase Program, Number of Shares Authorized to be Repurchased | 2,500,000 |
| X | ||||||||||
- Definition The aggregate number of treasury shares acquired by the company. No definition available.
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| X | ||||||||||
- Definition The aggregate value of treasury stock acquired by the company. No definition available.
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| X | ||||||||||
- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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| X | ||||||||||
- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Note 3 - Supplemental Balance Sheet Information (Details Textual) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
|
Dec. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
Dec. 31, 2016
USD ($)
|
|||
| Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance | $ 25,934 | $ 18,330 | $ 10,706 | ||
| Revenues, Total | [1] | 87,190 | 85,531 | ||
| Construction in Progress, Gross | 2,870 | 5,136 | |||
| Depreciation, Total | $ 1,972 | 2,005 | |||
| Number of Reporting Units | 4 | ||||
| Goodwill, Impairment Loss | $ 0 | $ 0 | |||
| Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months | 362 | ||||
| Finite-Lived Intangible Assets, Amortization Expense, Year Two | 349 | ||||
| Finite-Lived Intangible Assets, Amortization Expense, Year Three | 330 | ||||
| Finite-Lived Intangible Assets, Amortization Expense, Year Four | 315 | ||||
| Finite-Lived Intangible Assets, Amortization Expense, Year Five | 312 | ||||
| Grant [Member] | |||||
| Revenues, Total | $ 97 | ||||
| |||||
| X | ||||||||||
- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment. No definition available.
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| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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Note 3 - Supplemental Balance Sheet Information - Cash and Restricted Cash (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|---|
| Cash | $ 25,583 | $ 18,241 | |
| Restricted Cash | 351 | 89 | |
| Total | $ 25,934 | $ 18,330 | $ 10,706 |
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 3 - Supplemental Balance Sheet Information - Components of Inventory (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Raw Materials | $ 13,274 | $ 14,606 |
| Work in Process | 2,016 | 2,013 |
| Finished Products | 7,553 | 9,707 |
| Total | $ 22,843 | $ 26,326 |
| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Note 3 - Supplemental Balance Sheet Information - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Property, plant and equipment, gross | $ 71,601 | $ 66,711 |
| Less – Accumulated Depreciation | (60,857) | (59,141) |
| Total | 10,744 | 7,570 |
| Land [Member] | ||
| Property, plant and equipment, gross | 123 | 123 |
| Building and Building Improvements [Member] | ||
| Property, plant and equipment, gross | 8,267 | 7,858 |
| Machinery and Equipment [Member] | ||
| Property, plant and equipment, gross | 51,261 | 50,852 |
| Furniture and Fixtures [Member] | ||
| Property, plant and equipment, gross | 2,058 | 2,005 |
| Computer Equipment [Member] | ||
| Property, plant and equipment, gross | 5,590 | 5,338 |
| Construction in Progress [Member] | ||
| Property, plant and equipment, gross | $ 4,302 | $ 535 |
| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
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| X | ||||||||||
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| X | ||||||||||
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| X | ||||||||||
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Note 3 - Supplemental Balance Sheet Information - Summary of Goodwill (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Goodwill balance | $ 20,458 | $ 19,965 |
| Effect of Foreign Currency Translation | (349) | 493 |
| Goodwill balance | 20,109 | 20,458 |
| Battery & Energy Products Segment [Member] | ||
| Goodwill balance | 8,965 | 8,472 |
| Effect of Foreign Currency Translation | (349) | 493 |
| Goodwill balance | 8,616 | 8,965 |
| Communications Systems Segment [Member] | ||
| Goodwill balance | 11,493 | 11,493 |
| Effect of Foreign Currency Translation | ||
| Goodwill balance | $ 11,493 | $ 11,493 |
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Note 3 - Supplemental Balance Sheet - Composition of Intangible Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Cost | $ 16,109 | $ 16,344 |
| Accumulated Amortization | 9,605 | 9,259 |
| Net | 6,504 | 7,085 |
| Trademarks [Member] | ||
| Cost | 3,405 | 3,411 |
| Accumulated Amortization | 0 | |
| Net | 3,405 | 3,411 |
| Customer Relationships [Member] | ||
| Cost | 6,471 | 6,618 |
| Accumulated Amortization | 4,392 | 4,208 |
| Net | 2,079 | 2,410 |
| Patented Technology [Member] | ||
| Cost | 5,486 | 5,545 |
| Accumulated Amortization | 4,725 | 4,595 |
| Net | 761 | 950 |
| Distributor Relationships [Member] | ||
| Cost | 377 | 377 |
| Accumulated Amortization | 377 | 377 |
| Net | ||
| Trade Names [Member] | ||
| Cost | 370 | 393 |
| Accumulated Amortization | 111 | 79 |
| Net | $ 259 | $ 314 |
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Note 3 - Supplemental Balance Sheet Information - Amortization of Intangible Assets (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Amortization of Intangible Assets | $ 397 | $ 422 |
| Research and Development Expense [Member] | ||
| Amortization of Intangible Assets | 147 | 165 |
| Selling, General and Administrative Expenses [Member] | ||
| Amortization of Intangible Assets | $ 250 | $ 257 |
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
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Note 4 - Debt (Details Textual) $ in Thousands |
12 Months Ended | |
|---|---|---|
|
May 31, 2017
USD ($)
|
Dec. 31, 2018
USD ($)
|
|
| KeyBank [Member] | Revolving Credit Facility [Member] | ||
| Line of Credit Facility, Maximum Borrowing Capacity | $ 30,000 | |
| Line of Credit Facility Maximum Borrowing Capacity May Be Increased to | 50,000 | |
| Long-term Line of Credit, Total | $ 0 | |
| Minimum Fixed Charge Coverage Ratio | 1.15 | |
| Minimum Tangible Net Worth | $ 40,000 | |
| Letters of Credit Outstanding, Amount | 0 | |
| KeyBank [Member] | Letter of Credit [Member] | ||
| Line of Credit Facility, Maximum Borrowing Capacity | $ 1,500 | |
| PNC Bank [Member] | Revolving Credit Facility [Member] | ||
| Long-term Line of Credit, Total | $ 0 |
| X | ||||||||||
- Definition The maximum borrowing capacity that the company may be increased to according to the credit agreement. No definition available.
|
| X | ||||||||||
- Definition The minimum fixed charge coverage ratio required for certain debt covenants. No definition available.
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| X | ||||||||||
- Definition The minimum tangible net worth of the company required for certain debt covenants. No definition available.
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| X | ||||||||||
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. No definition available.
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| X | ||||||||||
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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|
| X | ||||||||||
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
|
| X | ||||||||||
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 5 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Operating Leases, Rent Expense, Net, Total | $ 716 | $ 660 |
| Capital Addition Purchase Commitments [Member] | ||
| Long-term Purchase Commitment, Amount | $ 2,848 | |
| X | ||||||||||
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. No definition available.
|
| X | ||||||||||
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
Note 5 - Commitments and Contingencies - Future Minimum Lease Payments (Details) $ in Thousands |
Dec. 31, 2018
USD ($)
|
|---|---|
| 2019 | $ 685 |
| 2020 | 404 |
| 2021 | 142 |
| 2022 | |
| 2023 |
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Note 5 - Commitments and Contingencies - Changes in Produce Warranty Liability (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Accrued Warranty Obligation, Beginning | $ 149 | $ 172 |
| Provision for warranties issued | 7 | 84 |
| Settlements made | (61) | (107) |
| Accrued Warranty Obligations – Ending | $ 95 | $ 149 |
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the standard and extended product warranty accrual from changes in estimates attributable to preexisting product warranties. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Price of the entity's common stock which would be required to be attained for the option accelerated vesting to become effective. No definition available.
|
| X | ||||||||||
- Definition Threshold number of specified trading days that common stock price for an accelerated option avesting must exceed threshold percentage within a 30 day trading period for the option accelerated vesting. No definition available.
|
| X | ||||||||||
- Definition Represents the incremental amount of shares to vest annually. No definition available.
|
| X | ||||||||||
- Definition Represents the minimum closing price per share to release shares expected to vest. No definition available.
|
| X | ||||||||||
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Aggregate number of common shares reserved for future issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Unrecognized cost of unvested options awarded to employees as compensation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Additional share-based compensation cost recognized as a result of an occurrence of an event that accelerates its recognition. No definition available.
|
| X | ||||||||||
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition An excess of the fair value of the modified award over the fair value of the award immediately before the modification. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 6 - Shareholders' Equity - Non-cash Stock Compensation Expense (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Stock-based comepensation expense | $ 890 | $ 653 |
| Employee Stock Option [Member] | ||
| Stock-based comepensation expense | 817 | 642 |
| Restricted Stock [Member] | ||
| Stock-based comepensation expense | $ 73 | $ 11 |
| X | ||||||||||
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 6 - Shareholders' Equity - Stock Option Assumptions (Details) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Risk-free interest rate | 2.60% | 1.70% |
| Volatility factor | 46.80% | 50.00% |
| Weighted Average Expected Life (Year) | 5 years | 5 years |
| Forfeiture rate | 10.00% | 10.00% |
| Dividends | 0.00% | 0.00% |
| X | ||||||||||
- Definition The forfeiture rate assumption that is used in valuing an option on its own shares. No definition available.
|
| X | ||||||||||
- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
|
| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 7 - Income Taxes - Income Tax Expense (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Federal | ||
| State | ||
| Foreign | 257 | 300 |
| Total current tax provision | 257 | 300 |
| Federal | (18,514) | (1,717) |
| State | 55 | |
| Foreign | (129) | (7) |
| Total deferred tax provision (benefit) | (18,643) | (1,669) |
| Total income tax provision | $ (18,386) | $ (1,369) |
| X | ||||||||||
- Definition Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
Note 7 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Property, Plant and Equipment | $ 168 | $ 44 |
| Net Operating Loss Carryforwards | 15,622 | 16,838 |
| Tax Credit Carryforwards | 1,817 | 1,837 |
| Intangible Assets | 1,231 | 1,535 |
| Accrued Expenses, Reserves and Other | 1,838 | 1,359 |
| Total Deferred Tax Assets | 20,676 | 21,613 |
| Valuation Allowance for Deferred Tax Assets | (1,942) | (21,604) |
| Net Deferred Tax Assets | 18,734 | 9 |
| Other | (25) | (38) |
| Intangible Assets | (3,856) | (3,806) |
| Total Deferred Tax Liabilities | (3,881) | (3,844) |
| Net Deferred Tax Assets (Liabilities) | $ 14,853 | |
| Net Deferred Tax Assets (Liabilities) | $ (3,835) |
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill. No definition available.
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. No definition available.
|
| X | ||||||||||
- Definition Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Note 7 - Income Taxes - Net Deferred Tax Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Deferred Income Taxes, Net | $ 15,444 | $ 32 |
| Deferred Tax Liabilities | (591) | (3,867) |
| Net Deferred Tax Assets (Liabilities) | $ 14,853 | |
| Net Deferred Tax Assets (Liabilities) | $ (3,835) |
| X | ||||||||||
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Note 7 - Income Taxes - United States and Foreign Income (Loss) From Continuing Operations Before Income Taxes (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| United States | $ 6,226 | $ 4,831 |
| Foreign | 387 | 1,464 |
| Income Before Income Taxes | $ 6,613 | $ 6,295 |
| X | ||||||||||
- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Note 7 - Income Taxes - Effective Rate Reconciliation (Details) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Statutory Income Tax Rate | 21.00% | 34.00% |
| Equity Compensation | (2.90%) | 0.70% |
| Income Tax Credits | (1.00%) | (0.90%) |
| Foreign Tax Rates | 0.30% | (3.80%) |
| Valuation Allowance | (297.30%) | (20.90%) |
| Tax Rate Change | (30.80%) | |
| Other | 2.00% | (0.10%) |
| Effective Income Tax Rate | (277.90%) | (21.80%) |
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to equity-based compensation costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments. No definition available.
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
Note 8 - 401(k) Retirement Benefit Plan (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 50.00% | 50.00% |
| Defined Contribution Plan, Maximum Employee Contribution Percentage, Subject to Employer Matching Contribution | 4.00% | 4.00% |
| Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 2.00% | 2.00% |
| Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 204 | $ 181 |
| X | ||||||||||
- Definition The maximum employee contribution percentage that is subject to employer matching contribution within a defined contribution plan. No definition available.
|
| X | ||||||||||
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available.
|
| X | ||||||||||
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
|
| X | ||||||||||
- Definition Percentage employer matches of the employee's percentage contribution matched. No definition available.
|
Note 9 - Business Segment Information (Details Textual) |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
|
| Number of Operating Segments | 2 | |
| Non-US [Member] | ||
| Long-Lived Assets | $ 11,502 | $ 12,443 |
| X | ||||||||||
- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
- Definition Amount of increase (decrease) of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
|
| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 9 - Business Segment Information - Domestic and International Revenue by Segment (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
||||
| Revenues, Total | [1] | $ 87,190 | $ 85,531 | ||
| Revenue, percentage | [1] | ||||
| UNITED STATES | |||||
| Revenues, Total | [1] | $ 53,054 | $ 47,614 | ||
| Revenue, percentage | [1] | 61.00% | 56.00% | ||
| Non-US [Member] | |||||
| Revenues, Total | [1] | $ 34,136 | $ 37,917 | ||
| Revenue, percentage | [1] | 39.00% | 44.00% | ||
| Battery & Energy Products Segment [Member] | |||||
| Revenues, Total | [1] | $ 70,497 | $ 69,789 | ||
| Battery & Energy Products Segment [Member] | UNITED STATES | |||||
| Revenues, Total | [1] | 37,898 | 33,397 | ||
| Battery & Energy Products Segment [Member] | Non-US [Member] | |||||
| Revenues, Total | [1] | 32,599 | 36,392 | ||
| Communications Systems Segment [Member] | |||||
| Revenues, Total | [1] | 16,693 | 15,742 | ||
| Communications Systems Segment [Member] | UNITED STATES | |||||
| Revenues, Total | [1] | 15,156 | 14,217 | ||
| Communications Systems Segment [Member] | Non-US [Member] | |||||
| Revenues, Total | [1] | $ 1,537 | $ 1,525 | ||
| |||||
| X | ||||||||||
- Definition The percentage of total revenue for the period. No definition available.
|
| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Note 9 - Business Segment Information - Revenue by Business Segment Sector (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
||||
| Revenues, Total | [1] | $ 87,190 | $ 85,531 | ||
| Revenue, percentage | [1] | ||||
| Commercial [Member] | |||||
| Revenues, Total | $ 41,044 | $ 40,790 | |||
| Revenue, percentage | 47.00% | 48.00% | |||
| Government & Defense [Member] | |||||
| Revenues, Total | $ 46,146 | $ 44,741 | |||
| Revenue, percentage | 53.00% | 52.00% | |||
| Battery & Energy Products Segment [Member] | |||||
| Revenues, Total | [1] | $ 70,497 | $ 69,789 | ||
| Battery & Energy Products Segment [Member] | Commercial [Member] | |||||
| Revenues, Total | 41,044 | 40,790 | |||
| Battery & Energy Products Segment [Member] | Government & Defense [Member] | |||||
| Revenues, Total | 29,453 | 28,999 | |||
| Communications Systems Segment [Member] | |||||
| Revenues, Total | [1] | 16,693 | 15,742 | ||
| Communications Systems Segment [Member] | Commercial [Member] | |||||
| Revenues, Total | |||||
| Communications Systems Segment [Member] | Government & Defense [Member] | |||||
| Revenues, Total | $ 16,693 | $ 15,742 | |||
| |||||
| X | ||||||||||
- Definition The percentage of total revenue for the period. No definition available.
|
| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|