Document and Entity Information - USD ($) $ in Thousands	12 Months Ended
Document and Entity Information - USD ($) $ in Thousands	Dec. 31, 2015	Feb. 26, 2016	Jun. 26, 2015
Document And Entity Information
Entity Registrant Name	Ultralife Corporation
Entity Central Index Key	0000875657
Document Type	10-K
Document Period End Date	Dec. 31, 2015
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 42,741
Entity Common Stock, Shares Outstanding		15,323,922
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2015

Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets
Cash and cash equivalents	$ 14,393	$ 17,711
Restricted cash	140	155
Trade accounts receivable, net	11,430	11,295
Inventories, net	23,814	26,086
Prepaid expenses and other current assets	1,900	1,313
Due from insurance company	177	184
Deferred income taxes	92	106
Total current assets	51,946	56,850
Property, equipment and improvements, net	9,038	9,812
Goodwill	16,283	16,407
Other intangible assets, net	3,946	4,338
Security deposits and other non-current assets	309	235
Total assets	81,522	87,642
Current liabilities:
Accounts payable	6,494	6,996
Accrued compensation and related benefits	2,377	1,725
Accrued expenses and other current liabilities	1,749	2,421
Income taxes payable	227	69
Total current liabilities	10,847	11,211
Deferred income taxes	4,631	4,462
Other non-current liabilities	28	56
Total liabilities	15,506	15,729
Shareholders' Equity:
Common stock	1,918	1,894
Capital in excess of par value	177,007	175,940
Accumulated deficit	(94,051)	(96,920)
Accumulated other comprehensive income	(907)	(467)
Treasury stock, at cost	(17,808)	(8,420)
Total Ultralife Equity	66,159	72,027
Noncontrolling interest	(143)	(114)
Total shareholders' equity	66,016	71,913
Total liabilities and shareholders' equity	$ 81,522	$ 87,642

Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Trade accounts receivable - allowance for doubtful accouns	$ 300	$ 340
Preferred stock - par value (in dollars per share)	$ 0.1	$ 0.1
Preferred stock - shares authorized	10,000,000	10,000,000
Preferred stock - shares issued	0	0
Preferred stock - shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.1	$ 0.1
Common stock - shares authorized	40,000,000	40,000,000
Common stock - shares issued	19,181,815	18,941,544
Common stock - shares outstanding	15,322,155	17,340,813
Treasury stock - shares	3,859,660	1,600,731

Statements of Operations - USD ($) $ in Thousands	12 Months Ended
Statements of Operations - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Revenues	$ 76,427	$ 66,494
Cost of products sold	53,111	47,144
Gross profit	23,316	19,350
Operating expenses:
Research and defelopment	5,603	5,333
Selling, general and administrative	14,233	15,460
Intangible asset impairment	150	0
Total operating expenses	19,986	20,793
Operating income (loss)	3,330	(1,443)
Other (expense) income:
Interest income	3	13
Interest and financing expense	(248)	(218)
Miscellaneous	65	(154)
Income (loss) from continuing operations before income taxes	3,150	(1,802)
Income tax provision	310	268
Net income (loss) from continuing operations	2,840	(2,070)
(Loss) from discontinued operations, net of tax	0	61
Net income (loss)	2,840	(2,131)
Net loss attributable to noncontrolling interest	29	15
Net income (loss) attributable to Ultralife	2,869	(2,116)
Other comprehensive income - Foreign currency translation adjustments	(440)	147
Comprehensive loss attributable to Ultralife	$ 2,429	$ (1,969)
Net income (loss) per share attributable to Ultralife common shareholders - basic: (in dollars per share):
Continuing operations	$ .18	$ (0.12)
Discontinued operations	0	0
Total	.18	(0.12)
Net income (loss) per share attributable to Ultralife common shareholders - diluted: (in dollars per share):
Continuing operations	.17	(.12)
Discontinued operations	$ 0	$ 0
Weighted average shares outstanding - basic	16,182,000	17,475,000
Weighted average shares outstanding - diluted	16,458,000	17,475,000

Shareholders Equity - USD ($) $ in Thousands	Total	Common Stock	Common Stock Shares	Additional Paid-In Capital	Other Comprehensive Income / Loss	Retained Earnings / Accumulated Deficit	Treasury Stock	Noncontrolling Interest
Beginning balance at Dec. 31, 2013	$ 73,645	$ 1,885	$ 18,851,579	$ 174,935	$ (614)	$ (94,804)	$ (7,658)	$ (99)
Shares issued to directors - amount	$ 210	6		204
Shares issued to directors - shares	56,898		56,898
Shares issued on stock option exercise - amount	$ 11	0		11
Shares issued on stock option exercise - shares	3,067		3,067
Stock compensation - options	$ 614			614
Stock compensation - restricted stock	179			179
Foreign currency translation adjustments	147				147
Vesting of restricted stock - amount	0	3		(3)
Vesting of restricted stock - shares			30,000
Purchase of stock	(762)						(762)
Net income (loss)	(2,131)					(2,116)		(15)
Ending balance at Dec. 31, 2014	$ 71,913	1,894		175,940	(467)	(96,920)	(8,420)	(114)
Ending balance - shares at Dec. 31, 2014	18,941,544		18,941,544
Shares issued on stock option exercise - amount	$ 538	14		524
Shares issued on stock option exercise - shares	137,937		137,937
Stock compensation - options	$ 489			489
Stock compensation - restricted stock	82			82
Foreign currency translation adjustments	(440)				(440)
Vesting of restricted stock - amount	$ (18)	10		(28)
Vesting of restricted stock - shares	102,334		102,334
Purchase of stock	$ (9,388)						(9,388)
Net income (loss)	2,840					2,869		(29)
Ending balance at Dec. 31, 2015	$ 66,016	$ 1,918		$ 177,007	$ (907)	$ (94,051)	$ (17,808)	$ (143)
Ending balance - shares at Dec. 31, 2015	19,181,815		19,181,815

Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
Statements of Cash Flows - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Statement of Cash Flows [Abstract]
Net loss	$ 2,840	$ (2,131)
Loss (gain) from discontinued operations, net of tax	0	(61)
Adjustments to reconcile net loss from continuing operations to net cash provided by operating activities
Depreciation and amortization of financing fees	2,472	2,828
Amortization of intangible assets	235	305
Intangible asset impairment	150	0
Loss on long-lived asset disposals	114	298
Foreign exchange loss	0	0
Stock-based compensation	571	1,003
Changes in deferred income taxes	183	196
Provision for allowance for doubtful accounts	(22)	52
Changes in operating assets and liabilities:
Accounts receivable	(217)	2,878
Inventories	2,101	(46)
Prepaid expenses and other assets	(757)	249
Due from insurance company	0	0
Income taxes receivable and payable	158	(25)
Accounts payable and other liabilities	723	(2,003)
Net cash provided by operating activities	8,551	3,665
INVESTING ACTIVITIES:
Cash paid for property, equipment and improvements	(2,910)	(1,653)
Change in restricted cash	0	268
Net cash used in investing activities	(2,910)	(1,385)
FINANCING ACTIVITIES:
Cash paid to repurchase treasury stock	(9,388)	(762)
Proceeds from exercise of stock options	538	11
Vesting of restricted stock - tax withholdings	(18)	0
Net cash used in financing activities	(8,868)	(751)
Effect of exchange rate changes on cash and cash equivalents	(91)	116
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(3,318)	1,645
Cash and cash equivalents, beginning of period	17,711	16,066
Cash and cash equivalents, end of period	14,393	17,711
Supplemental Cash Flow Information:
Income taxes paid	52	60
Construction in Process in accounts payable	0	1,019
Interest paid	$ 150	$ 76

Note 1 - Summary of Operations and Significant Accounting Policies

12 Months Ended

Dec. 31, 2015

Note 1 - Summary Of Operations And Significant Accounting Policies

Summary of Operations and Significant Accounting Policies

Note 1 - Summary of Operations and Significant Accounting Policies

a. Description of Business

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.

b. Principles of Consolidation

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”), 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.

Final adjustments relating to the divested operations of RedBlack Communications, Inc. (“RedBlack”) are reported as discontinued operations in the 2014 statement of operations.

c. Management's Use of Judgment and Estimates

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) profitability on development contracts, if any; (d) various expense accruals; and (e) stock-based compensation. Our actual results could differ from these estimates.

d. Reclassifications

Certain items previously reported in specific financial statement captions have been reclassified to conform to the current presentation.

e. Cash and Cash Equivalents

For purposes of the Consolidated Statements of Cash Flows, we consider all demand deposits with financial institutions and financial instruments with original maturities of three months or less to be cash equivalents. For purposes of the Consolidated Balance Sheet, the carrying value approximates fair value because of the short maturity of these instruments.

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 and cash equivalents.

f. Accounts Receivable and Allowance for Doubtful Accounts

We extend credit to our customers in the normal course of business. We perform ongoing credit evaluations and generally do not require collateral. 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 longer than contractual payment terms are considered past due and are reviewed individually for collectability. We maintain reserves for potential credit losses based upon our loss history and specific receivables aging analysis. Receivable balances are written off when collection is deemed unlikely.

Changes in our allowance for doubtful accounts during the years ended December 31, 2015 and 2014 were as follows:

	2015			2014
Balance at beginning of year	$	340		$	288
Amounts charged to expense		31			52
Net write-offs (recoveries)		(53	)		—
Foreign currency translation		(18	)		—
Total	$	300		$	340

g. Inventories

Inventories are stated at the lower of cost or market 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

Property, plant and equipment are stated at cost. Estimated useful lives are as follows:

Buildings 10 – 20 years

Machinery and Equipment 5 – 10 years

Furniture and Fixtures 3 – 10 years

Computer Hardware and Software 3 – 5 years

Leasehold Improvements Lesser of useful life or lease term

Depreciation and amortization are computed using the straight-line method. 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 (expense).

Long-Lived Assets, Goodwill and Intangibles

We regularly 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 either through the assistance of an independent valuation or as the present value of expected discounted future cash flows. The discount rate used by us in our evaluation approximates our 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. We did not record any impairments of property, plant and equipment or amortizable intangible assets in the years ended December 31, 2015 or 2014.

We do not amortize goodwill and intangible assets with indefinite lives, but instead measure these assets for impairment at least annually, or when events indicate that impairment may exist. We amortize intangible assets that have definite lives so that the economic benefits of the intangible assets are being recognized as expense over their weighted-average estimated useful lives.

The impairment analysis of goodwill consists first of a review of various qualitative factors of the identified reporting units to determine whether it is more likely than not that the fair value of a reporting unit exceeds its carrying amount, including goodwill. This review includes, but is not limited to, an evaluation of the macroeconomic, industry or market, and cost factors relevant to the reporting unit as well as financial performance and entity or reporting unit events that may affect the value of the reporting unit. If this review leads to the determination that it is more likely than not that the fair value of the reporting unit is greater than its carrying amount, further impairment testing is not required. However, if this review cannot support such a conclusion, or at our discretion, quantitative impairment steps are performed. Similarly, the analysis for indefinite-lived intangible assets consists of review of various qualitative factors to determine if it is more likely than not that the indefinite-lived intangible asset is not impaired. If such a conclusion cannot be supported, or at our discretion, quantitative impairment steps are performed.

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. We determine the fair value of the reporting unit for goodwill impairment testing based on a discounted cash flow model. We determine the fair value of our intangibles assets with indefinite lives (trademarks) through the royalty relief income valuation approach.

Due to time delays in the awarding by government/defense customers in recent years of certain large projects in our Communications Systems segment, we recorded a partial impairment of our McDowell Research, Ltd. trademark in the year ended December 31, 2015. This impairment amounted to $150. No impairments of long-lived intangible assets were recorded in the year ended December 31, 2014.

Future amortization expense of amortizable intangible assets will be approximately $166, $121, $85, $62 and $49 for the fiscal years ending December 31, 2016 through 2020, respectively, and $52 thereafter.

j. Translation of Foreign Currency

The financial statements of our foreign subsidiaries are translated into U.S. dollar equivalents, with translation adjustments recorded as a component of accumulated other comprehensive income. Exchange gains and (losses) relate to foreign currency transactions and balances included in net income (loss) for the years ended December 31, 2015 and 2014 were $48 and $(235), respectively.

k. Revenue Recognition

Product Sales – In general, revenues from the sale of products are recognized when products are shipped. When products are shipped with terms that require transfer of title upon delivery at a customer’s location, revenues are recognized on the date of delivery. A provision is made at the time the revenue is recognized for warranty costs expected to be incurred. Customers, including distributors, do not have a general right of return on products shipped.

Technology Contracts – We recognize revenue using the proportional effort method based on the relationship of costs incurred to date to the total estimated cost to complete the contract. Elements of cost include direct material, labor and overhead. If a loss on a contract is estimated, the full amount of the loss is recognized immediately. We allocate costs to all technology contracts based upon actual costs incurred including an allocation of certain research and development costs incurred.

Deferred Revenue – For each source of revenues, we defer recognition if: i) evidence of an agreement does not exist, ii) delivery or service has not occurred, iii) the selling price is not fixed or determinable, or iv) collectability is not reasonably assured.

l. Warranty Reserves

We estimate future costs associated with expected product failure rates, material usage and service costs in the development of our warranty obligations. Warranty reserves, included in other current liabilities and other long-term liabilities as applicable on our Consolidated Balance Sheets, are based on historical experience of warranty claims. In the event the actual results of these items differ from the estimates, an adjustment to the warranty obligation would be recorded.

m. Shipping and Handling Costs

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.

n. Advertising Expenses

Advertising costs are expensed as incurred and are included in selling, general and administrative expenses in the accompanying Consolidated Statements of Operations. Such expenses amounted to $59 and $43 for the years ended December 31, 2015 and 2014, respectively.

o. Research and Development

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. During 2015 and 2014, we expended $6,112 and $5,648, respectively, on research and development, including $509 and $315, respectively, on customer sponsored research and development activities, which are included in cost of goods sold. We recognized $509 and $317 of revenue relating to these activities during 2015 and 2014, respectively.

In 2011, we entered into a collaboration agreement with the New York State Energy Research and Development Authority (“NYSERDA”), to develop and demonstrate a large hybrid grid-connected energy storage system. This agreement was terminated by NYSERDA in the second quarter of 2013, per the terms of the agreement. We had planned to continue this project internally with smaller form batteries which provide greater opportunity and applicability in the markets we serve. However, we decided not to further pursue the development of this project, and recorded a write-off of capitalized costs totaling $161 in 2014 relating to this project.

p. Environmental Costs

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.

q. Income Taxes

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.

A valuation allowance is required when it is more likely than not that the recorded value of a deferred tax asset will not be realized. As of December 31, 2015, we continued to recognize a valuation allowance in the U.S. and U.K. on our net deferred tax assets to the extent that temporary tax differences and the U.S. and U.K. net operating loss and tax credit carryforwards resulting in the deferred tax asset are not able to be offset by future reversing temporary differences. The assessment of the realizability of the U.S. NOL was based on a number of historical factors including, our history of net operating losses, the volatility of our earnings, our historical operating volatility, our historical inability to accurately forecast earnings for future periods and the continued uncertainty of the general business climate as of the end of 2015. We concluded that these historical factors represent sufficient negative evidence and have concluded that we should record a full valuation allowance against these net deferred tax assets. We also recorded a full valuation allowance on our net deferred tax asset for the year ended December 31, 2014.

At December 31, 2014, we had unrecognized tax benefits related to uncertain tax positions which were recorded as a decrease in our net operating loss carryforward. We had not recorded any interest or penalty in regard to any unrecognized benefit. Interest and penalties would begin to accrue in the period in which the NOLs related to the uncertain tax positions are utilized. Our policy regarding interest and/or penalties related to income tax matters is to recognize such items as a component of income tax expense (benefit). We recorded the release of this unrecognized tax benefit amount during 2015 upon the conclusion of a federal tax examination, resulting in a $21.4 million increase in the amount of our reported domestic NOL carryforward.

r. Concentration Related to Customers and Suppliers

During the years ended December 31, 2015 and 2014, we had one major customer, a large defense primary contractor, which comprised 24% and 18% of our revenues, respectively. There were no other customers that comprised greater than 10% of our total revenues during these years.

We had no customers who comprised 10% or more of our trade accounts receivable at December 31, 2015. We had one customer who comprised 16% of our trade accounts receivable at December 31, 2014.

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 2015 and 2014, we do not consider this customer to be a significant credit risk. We do not normally obtain collateral on trade accounts receivable.

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.

s. Fair Value Measurements and Disclosures

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:

Level 1:

Quoted prices in active markets for identical assets or liabilities.

Level 2:

Observable inputs, other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or that we corroborate with observable market data for substantially the full term of the related assets or liabilities.

Level 3:

Unobservable inputs supported by little or no market activity that are significant to the fair value of the assets or liabilities.

The fair value of financial instruments approximated their carrying values at December 31, 2015 and 2014. 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.

t. Earnings (Loss) Per Share

Basic earnings (loss) per share is computed by dividing net income or loss by the weighted average number of common shares outstanding for the period. Diluted earnings per share calculations reflect the assumed exercise and conversion of dilutive employee stock options and unvested restricted stock, if any, applying the treasury stock method. Diluted earnings per share in 2015 include 1,312,282 outstanding in-the-money stock options which add 260,318 shares to the number of shares outstanding, and include 32,800 restricted stock units which add 15,385 shares outstanding.

Due to the net loss in 2014, diluted earnings per share was equal to basic earnings per share, as all potential shares were anti-dilutive. Diluted earnings per share calculations exclude the effect of approximately 945,687 and 2,195,222 employee stock options and restricted stock shares in 2015 and 2014, respectively, since such options have an exercise price in excess of the weighted average market price of the Company’s common stock.

u. Stock-Based Compensation

We have various stock-based employee compensation plans, which are described more fully in Note 10. 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).

v. Segment Reporting

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 by us in monitoring our operations. Management operates and organizes itself according to business units that comprise unique products and services across geographic locations.

w. Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued guidance related to revenue from contracts with customers. Under this guidance, 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 updated standard will replace most existing revenue recognition guidance under GAAP when it becomes effective and permits the use of either the retrospective or cumulative effect transition method. The FASB has approved a one year deferral of this standard, and this pronouncement is now effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period and is to be applied using one of two retrospective application methods, with early application permitted for annual reporting periods beginning after December 15, 2016. While we have not completed our impact analysis, we do not expect the adoption to have a material impact on our Consolidated Financial Statements. We do not anticipate early adoption of the standard.

In July 2015, the FASB issued Accounting Standards Update No. 2015-11, "Simplifying the Measurement of Inventory," which simplifies the subsequent measurement of inventory by using only the lower of cost and net realizable value. This update does not apply to inventory measured using last-in, first-out method. This guidance is effective for fiscal years and interim periods within those years beginning after December 15, 2016, and must be applied on a retrospective basis with early adoption permitted. The adoption is not expected to have a material impact on our Consolidated Financial Statements.

In February 2016, the Financial Accounting Standards Board issued guidance relating to accounting for leases by lessors and lessees. The guidance will require, among other things, that lessees recognize a right-to-use asset and related lease liability for all significant financing and operating 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 (calendar year 2019 for us), and early adoption is permitted. The Company has not yet considered the ramifications of this new standard on either our reported financial position or results of operations, but believe they may be significant. We have not yet determined whether we will adopt the standard in advance of its required effective date.

Note 2 - Dispositions, Relocations and Exit Activities

12 Months Ended

Dec. 31, 2015

Discontinued Operations and Disposal Groups [Abstract]

Dispositions, Relocations and Exit Activities

Note 2- Dispositions, Relocations and Exit Activities

During 2014, we were informed by local government authorities in Shenzhen, China that the lease for our facility there would not be extended, and we commenced a search for an alternate site to relocate our facility. In July 2014, our subsidiary in China entered into a lease for a replacement facility, also located in Shenzhen. During the fourth quarter of 2014, our subsidiary in China vacated its former facility premises and substantially completed a move and transition to this new facility.

The Company received compensation from the local government authorities for leasehold improvements and moving-related costs totaling $815, of which $596 was recognized as a reduction of expenses incurred during 2014, which expenses totaled $841. It is the Company’s policy to recognize this compensation as a reduction of expenses as the expenses are recognized. Additional government compensation totaling $219 was recognized as a reduction of expense in 2015. The related expenses incurred in 2015 totaled $221. The relocation payments were complete as of June 2015.

During 2014, we elected to terminate our lease for our U.K. office and repair facility which was to have expired in May 2018. The termination of this lease was effective as of January 31, 2015.

Also in 2012, we sold 100% of our ownership interest in RedBlack. During 2014, we recognized $61 of expense in discontinued operations arising from customary post-closing working capital adjustments relating to that sale.

- Definition

The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=51716988&loc=SL51721533-107759

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721665-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5C
-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721675-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3A
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+ Details

Note 3 - Acquisitions

12 Months Ended

Dec. 31, 2015

Business Combinations [Abstract]

Note 3 - Acquisitions

Note 3 – Acquisition

On January 13, 2016, Ultralife UK Limited (the “Merger Subsidiary”), a U.K. corporation and the Company’s wholly-owned subsidiary, completed the acquisition of all of the outstanding stock of Accutronics Limited (“Accutronics”), a U.K. corporation based in Newcastle-under-Lyme, U.K., from Intrinsic Equity Limited, Catapult Growth Fund Limited Partnership, MJF Pension Trustees Limited, Robert Andrew Phillips and Michael Allen (collectively, the “Sellers”). There are no material relationships between the Company or Merger Subsidiary and any of the Sellers, other than pertaining to this acquisition.

Accutronics is a leading independent designer and manufacturer of smart batteries and charger systems for high-performance, feature-laden portable and handheld electronic devices. Accutronics will be included in our Battery & Energy Products Segment. We acquired Accutronics to advance our strategy of commercial revenue diversification, to expand our geographical penetration, and to achieve revenue growth from new product development. We expect substantial sales synergies between Accutronics and our existing commercial battery business as we cross-sell our existing products and acquired Accutronics’ products to our respective customer bases.

The acquisition was completed pursuant to the terms of a Share Purchase Agreement dated January 13, 2016, by and among the Merger Subsidiary and the Sellers. The Merger Subsidiary paid an aggregate purchase price of £7.708 million (approximately $11.2 million) in cash, including a net working capital/debt adjustment in the amount of £.133 million (approximately $.2 million), and in exchange the Merger Subsidiary received all of the outstanding shares of Accutronics stock. Monies to fund the purchase price were advanced to the Merger Subsidiary from the Company’s general corporate funds. The final allocation of the purchase price to the assets and liabilities acquired has not yet been completed.

Note 4 - Share Repurchase Program

12 Months Ended

Dec. 31, 2015

Other Liabilities Disclosure [Abstract]

Note 4 - Share Repurchase Program

Note 4 – Share Repurchase Program

On April 28, 2014, the Company’s Board of Directors approved a share repurchase program (the “Share Repurchase Program”) which became effective on May 1, 2014, under which the Company was authorized to repurchase up to 1.8 million shares of its outstanding common stock over a period not to exceed twelve months. The Share Repurchase Program has been extended through June 2, 2016, and the maximum number of shares authorized to be repurchased under the program has been increased to 3.4 million shares.

Share repurchases under this program are made in accordance with SEC Rule 10b-18 using a variety of methods, which may include open market purchases, privately negotiated transactions and block trades, or any combination of such methods, in compliance with applicable insider trading and other securities laws and regulations. With the exception of repurchases made during stock trading black-out periods under a 10b5-1 Plan, the timing, manner, price and amount of any repurchases are determined at the Company’s discretion. The Share Repurchase Program may be suspended, terminated or modified by the Company at any time and for any reason. The Share Repurchase Program does not obligate the Company to repurchase any specific number of shares.

In 2015, we repurchased a total of 2,258,929 shares of our common stock for an aggregate consideration of $9,388, of which 2,225,437 shares were repurchased under the Share Repurchase Program for an aggregate amount of $9,228 (including fees and commissions). In 2014, we repurchased a total of 227,974 shares of our common stock for an aggregate consideration of $762, of which 216,754 shares were repurchased under the Share Repurchase Program for an aggregate amount of $722 (including fees and commissions).

Note 5 - Supplemental Balance Sheet Information

12 Months Ended

Dec. 31, 2015

Note 5 - Supplemental Balance Sheet Information

Supplemental Balance Sheet Information

Note 5 - Supplemental Balance Sheet Information

a. Inventory

Inventories are stated at the lower of cost or market with cost determined under the first-in, first-out (FIFO) method. The composition of inventories was:

	December 31,
	2015		2014
Raw materials	$	11,602	$	15,100
Work in process		1,560		1,489
Finished products		10,652		9,497
Total	$	23,814	$	26,086

b. Property, Plant and Equipment

Major classes of property, plant and equipment consisted of the following:

	December 31,
	2015			2014
Land	$	123		$	123
Buildings and leasehold improvements		7,490			7,437
Machinery and equipment		49,609			48,054
Furniture and fixtures		1,974			1,811
Computer hardware and software		4,585			4,452
Construction in progress		745			1,351
		64,526			63,228
Less – Accumulated depreciation		(55,488	)		(53,416	)
Total	$	9,038		$	9,812

Estimated costs to complete construction in progress as of December 31, 2015 and 2014 were approximately $180 and $586, respectively.

Depreciation expense was $2,401 and $2,757 for the years ended December 31, 2015 and 2014, respectively.

c. Impairment of Goodwill, Intangible Assets and Long-Lived Assets

We elected to forego the qualitative assessment for our three identified reporting units (Battery & Energy Products business, Communications Systems business, and Able (which is a subset of our Battery & Energy Products business), and conducted a quantitative assessment. The fair value for our reporting units subjected to this quantitative test could not be determined using readily available quoted Level 1 inputs or Level 2 inputs that were observable in active markets. Therefore, we used an income approach 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, particularly government/defense opportunities, as well as our estimates of the probabilities of the opportunities being funded, awarded, and awarded to us. Other key estimates and factors used in the valuation model included revenue growth rates and profit margins based on internal forecasts, as well as industry and market based terminal growth rates, inputs to the weighted-average cost of capital used to discount future cash flows, and earnings multiples. As a result of the goodwill impairment tests performed during 2015 and 2014, we determined that an impairment was not required.

Similarly, for our four other indefinite-lived intangible assets (trademarks and trade names), we elected to forego the qualitative assessment and proceeded to perform quantitative assessments. The fair value for our indefinite-lived intangible assets subjected to this quantitative test 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 royalty relief approach, to estimate the fair value of the indefinite-lived intangible assets, using Level 3 inputs. This method also required us to use significant estimates and judgmental factors. The key estimates and factors used in the valuation model included revenue growth rates, as well as industry and market based terminal growth rates, inputs to the weighted-average cost of capital used to discount future cash flows, and determined royalty rates. As a result of the impairment tests performed during 2015, we determined that an impairment amounting to $150 was required to reduce the carrying value of one Communications Systems business trademark to its estimated fair value. As a result of the impairment tests performed during 2014, we determined that no impairments were required.

There is a possibility that our goodwill and other intangible assets, particularly in our Communications Systems business, could be impaired should there be a significant change in our internal forecasts and other assumptions we use in our impairment analysis.

During 2015 and 2014, we also evaluated certain fixed assets for impairment utilizing valuation methods that are classified as Level 3 inputs. Based upon the results of this evaluation, no material impairment was indicated.

d. Goodwill

The following table summarizes the goodwill activity by segment for the years ended December 31, 2015 and 2014:

	Battery & Energy Products			Communi- cations Systems		Total
Balance – January 1, 2014	$	4,926		$	11,493	$	16,419
Effect of foreign currency translation		(12	)		—		(12	)
Balance – December 31, 2014		4,914			11,493		16,407
Effect of foreign currency translation		(124	)		—		(124	)
Balance – December 31, 2015	$	4,790		$	11,493	$	16,283

e. Other Intangible Assets

The composition of intangible assets was:

	December 31, 2015
	Cost		Accumulated Amortization		Net
Trademarks	$	3,411	$	—	$	3,411
Patents and technology		4,482		4,217		265
Customer relationships		3,971		3,716		255
Distributor relationships		370		355		15
Total other intangible assets	$	12,234	$	8,288	$	3,946

	December 31, 2014
	Cost		Accumulated Amortization		Net
Trademarks	$	3,567	$	—	$	3,567
Patents and technology		4,509		4,114		395
Customer relationships		4,029		3,679		350
Distributor relationships		391		365		26
Total other intangible assets	$	12,496	$	8,158	$	4,338

Amortization of intangible assets was included in the following financial statement captions:

	Year ended December 31,
	2015		2014
Research and development expense	$	130	$	176
Selling, general and administrative expense		105		129
Total	$	235	$	305

Except for the impairment charge recorded against a Communications Systems trademark in 2015, the change in the cost value of total intangible assets is a result of the effect of foreign currency exchange rate fluctuations.

Note 6 - Fair Value of Assets and Liabilities

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Note 6 - Fair Value of Assets and Liabilities

Note 6 - Fair Value of Assets and Liabilities

Our financial instruments include cash and cash equivalents, trade receivables, accounts payable and accrued liabilities. For these short-term instruments, we have concluded that the historical carrying value is a reasonable estimate of fair value because of the short period of time between the origination of such instruments and their expected realization.

During 2015 and 2014, there were no transfers of financial assets between Levels 1, 2 or 3 of fair value measurements. There have been no changes in the methodologies used at December 31, 2015 and December 31, 2014.

The table below shows assets measured at fair value on a non-recurring basis. The fair value of goodwill, trademarks and other intangible assets are determined using Level 3 inputs.

Assets Measured at Fair Value on a Non-recurring Basis
	Balance, December 31, 2015		Level 1		Level 2		Level 3		Total Gain / (Loss)
Goodwill – Battery & Energy Products Segment	$	4,790	$	—	$	—	$	4,790	$	—
Goodwill – Communications Systems Segment		11,493		—		—		11,493		—
Trademark – Battery & Energy Products Segment		711		—		—		711		—
Trademarks – Communications Systems Segment		2,700		—		—		2,700		(150	)
Total	$	19,694	$	—	$	—	$	19,694	$	(150	)

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. We determine the fair value of the reporting unit for goodwill impairment testing based on a discounted cash flow model. We determine the fair value of our intangibles assets with indefinite lives (trademarks) through the royalty relief income valuation approach.

For our impairment tests of both goodwill and trademarks, we use key assumptions that include estimates of future customer orders and revenues. The use of such estimates involves inherent uncertainties, and future impairments may be warranted if such future orders and revenues do not materialize.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Note 7 - Operating Leases

12 Months Ended

Dec. 31, 2015

Note 7 - Operating Leases

Operating Leases

Note 7 - Operating Leases

We lease various buildings, machinery, land, automobiles and office equipment. Rental expenses for all operating leases were approximately $672 and $775 for the years ended December 31, 2015 and 2014, respectively. Future minimum lease payments under non-cancelable operating leases as of December 31, 2015 are as follows:

2016				2017				2018				2019				2020
$	571			$	589			$	544			$	415			$	100

Note 8 - Debt

12 Months Ended

Dec. 31, 2015

Note 8 - Debt

Note 8 - Debt

Credit Facilities

We are party to a Revolving Credit, Guaranty and Security Agreement (the “Credit Agreement”) and related security agreements with PNC Bank, National Association (“PNC”), which provides us a $20 million secured asset-based revolving credit facility that includes a $1 million letter of credit subfacility (the “Credit Facility”). The Credit Agreement provides that the Credit Facility may be increased with the PNC’s concurrence to $35 million prior to the last six months of the term, and expires on May 24, 2017.

On April 30, 2014, the Company and PNC entered into an amendment (the “Amendment”) to the Credit Agreement. The Amendment permits the Company to commence the Share Repurchase Program described in Note 4, provided that (a) the Company is not in default under the Credit Agreement, (b) the Company’s undrawn availability under the Credit Agreement is at least $6 million both prior to and immediately following any repurchase, (c) the Company’s undrawn availability under the Credit Agreement plus domestic unrestricted cash is at least $8 million both prior to and immediately following any repurchase, and (d) the Company uses its unrestricted cash for such repurchases and does not request advances against the Credit Agreement for such purposes. On October 28, 2014, the Company and PNC entered into a second amendment to the Credit Agreement which modifies the definition of EBITDA in the Credit Agreement to include non-cash stock- based compensation expense.

On April 29, 2015, the Company and PNC entered into a third amendment to the Credit agreement which permitted the Company to extend the Share Repurchase Program to April 30, 2016. On June 15, 2015, the Company and PNC entered into a fourth amendment to the Credit Agreement which permitted the expansion of the Share Repurchase Program described in Note 4 and the extension of this program to June 2, 2016. Finally, on January 13, 2016, Company and PNC entered into a fifth amendment to the Credit Agreement which permitted the Company’s acquisition of Accutronics Ltd. as described in Note 3 above.

Our available borrowing limit under the Credit Facility fluctuates from time to time based on a borrowing base formula equal to the sum of up to 85% of eligible accounts receivable plus the least of (a) up to 65% of the eligible inventory and eligible foreign in-transit inventory, (b) up to 85% of the appraised net orderly liquidation value of eligible inventory and eligible foreign in-transit inventory, and (c) $7.5 million, in each case subject to the definitions in the Credit Agreement and reserves required by PNC.

Interest is payable quarterly and will accrue on outstanding indebtedness under the Credit Agreement at the alternate base rate, as defined in the Credit Agreement, plus the applicable margin or at the one, two or three month LIBOR rate plus the applicable margin as selected by us from time to time and listed below.

Quarterly Average Undrawn Borrowing Availability	Applicable Margin for Alternate Base Rate Loans	Applicable Margin for LIBOR Rate Loans
Greater than $8,000,000	1.00%	2.00%
$5,000,000 up to $8,000,000	1.25%	2.25%
Less than $5,000,000	1.50%	2.50%

We must pay a fee on the Credit Facility’s unused availability of 0.375% per annum and customary letter of credit fees in addition to various collateral monitoring and related fees and expenses.

In addition to customary affirmative and negative covenants, we must maintain a fixed charge coverage ratio as defined in the Credit Agreement of 1.15 to 1.00, tested quarterly for the four-quarters then ended. As of December 31, 2015 we were in compliance with all covenants. The Credit Facility is secured by substantially all our assets.

Any outstanding advances must be repaid upon expiration of the term of the Credit Facility. Payments must be made during the term to the extent outstanding advances exceed the maximum amount then permitted to be drawn as advances under the Credit Facility and from the proceeds of certain transactions. Upon the occurrence of an event of default, the outstanding obligations may be accelerated and PNC will have other customary remedies.

As of December 31, 2015, we had $-0- outstanding under the Credit Facility, an applicable interest rate of 2.43%, approximately $8,927 of borrowing capacity in addition to our unrestricted cash on hand of $14,393, and no outstanding letters of credit related to the Credit Facility.

Note 9 - Commitments and Contingencies

12 Months Ended

Dec. 31, 2015

Note 9 - Commitments And Contingencies

Note 9 - Commitments and Contingencies

Note 9 - Commitments and Contingencies

Indemnity

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.

Purchase Commitments

As of December 31, 2015, we have made commitments to purchase approximately $511 of production machinery and equipment.

China

Our operating facility in China presents risks including, but not limited to, changes in local regulatory requirements, including 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, eminent domain claims, labor disputes, rapid changes in government, economic and political policies, and other various contingencies that are outside of our control. Any such event could depress our earnings and have other material adverse effects on our business, financial condition and results of operations.

Employment Contracts

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 noncompetition and nonsolicitation 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.

Product Warranties

We estimate future costs associated with expected product failure rates, material usage and service costs in the development of our warranty obligations. Warranty reserves are based on historical experience of warranty claims and generally will be estimated as a percentage of sales over the warranty period. In the event the actual results of these items differ from the estimates, an adjustment to the warranty obligation would be recorded. Changes in our product warranty liability during the years ended December 31, 2015 and 2014 were as follows:

	2015			2014
Balance, January 1	$	376		$	513
Provision (reversal) for warranties issued		(90	)		122
Settlements made		(94	)		(259	)
Balance, December 31	$	192		$	376

f. Legal Matters –

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 a fire while parked at London Heathrow Airport. We participated in and provided technical assistance in support of an investigation of this incident conducted by U.K. and U.S. regulatory authorities as well as by the manufacturer of the aircraft, as we are one of many downstream suppliers to that manufacturer. 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. Ultralife has had this cell in production since 2001, with millions of units produced and this cell is widely-used for global defense and commercial applications. This battery product has gone through rigorous safety and qualification testing, including United Nations Transport of Dangerous Goods, Manual of Tests and Criteria, and is authorized for use in aerospace applications under Technical Standard Order C142.

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. The suit was filed by Ethiopian Airlines Enterprise in the Commercial Court, Queen’s Bench Division of the High Court of Justice, London. The suit seeks as damages USD 42 million plus other unspecified amounts, including those for loss of use and diminution in value of the aircraft. We maintain liability and products liability insurance through reputable providers, and in accordance with our corporate practices, immediately advised and referred this matter to our insurers. We are working with those insurers and their counsel to respond to and actively defend against this action, which is ongoing.

At this time, we believe that there is not a reasonable possibility that this incident will result in a material financial exposure to the Company.

Arista Power Litigation

Since September 2011, we have been pursuing legal action against Arista Power, Inc. (“Arista”) and our former employee, David Modeen, for, among other things, alleged breach of certain agreements, duties and obligations, including misappropriation of our confidential information and trade secrets, tortious interference, and breach of contract. On January 12, 2016, Arista filed for liquidation under Chapter 7 of the bankruptcy laws of the United States, without accurately identifying our ongoing lawsuit against them. Although we have not withdrawn our lawsuit, nor has it been dismissed, the Company does not intend to submit a Proof of Claim in connection with Arista’s bankruptcy filing, or otherwise continue pursuing its claims against Arista.

Note 10 - Shareholders' Equity

12 Months Ended

Dec. 31, 2015

Note 10 - Shareholders Equity

Note 10 - Shareholders' Equity

Note 10 - Shareholders' Equity

Stock-based Compensation Expense

We recorded non-cash stock compensation expense in each period as follows:

	2015		2014
Stock options	$	489	$	614
Restricted stock grants:
Employee		82		29
President and CEO		—		150
Board of Directors compensation –
stock grant		—		210
Total	$	571	$	1,003

These are more fully discussed as follows:

b. Stock Options

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 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 LTIP were 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 which 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- or five-year period and expire on the sixth or seventh anniversary of the grant date. All NQSOs issued to non-employee directors vest immediately and expire on either the sixth or seventh anniversary of the grant date. Some NQSOs issued to non-employees vest immediately and expire within three years; others have the same vesting characteristics as options given to employees. As of December 31, 2015, there were 1,447,219 stock options outstanding under the 2004 LTIP and 410,750 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. All such options in items (i) and (ii) shall expire on December 30, 2017. All such options in items (iii) and (iv) shall 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. 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.

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 expires on December 30, 2017.

As of December 31, 2015, there was $440 of total unrecognized compensation costs related to outstanding stock options, which is expected to be recognized over a weighted average period of 1.7 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, 2015 and 2014:

	Years Ended December 31,
	2015			2014
Risk-free interest rate		0.72	%		1.10	%
Volatility factor		48.54	%		50.70	%
Dividends		0.00	%		0.00	%
Weighted average expected life (years)		4.15			4.15
Forfeiture rate		13.8	%		13.8	%

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 in the years ended December 31, 2015 or 2014.

We calculate expected volatility for stock options by taking an average of historical volatility over the past five years and a computation of implied volatility. 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:

Year Ended December 31, 2015
	Number of Shares			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value
Shares under option – January 1		2,056,122		$	6.66
Options granted		411,250			4.68
Options exercised		(137,937	)		3.90
Options forfeited or expired		(71,466	)		11.86
Shares under option – December 31		2,257,969		$	6.30		3.57	$	3,094
Vested and expected to vest -
December 31		2,093,294		$	6.45		3.39	$	2,731

Options exercisable – December 31		1,255,736		$	5.22		2.44	$	1,786

Year Ended December 31, 2014
	Number of Shares			Weighted Average Exercise Price Per Share
Shares under option – January 1		2,131,622		$	6.99
Options granted		252,500			3.94
Options exercised		(3,067	)		3.67
Options forfeited or expired		(324,933	)		6.77
Shares under option – December 31		2,056,122		$	6.66

Options exercisable – December 31		1,296,619		$	5.63

The following table represents additional information about stock options outstanding at December 31, 2015:

		Option outstanding						Options exercisable
Range of Exercise Prices		Number of Outstanding Options – December 31, 2015		Weighted-Average Remaining Contractual Life		Weighted- Average Exercise Price		Number of Options Exercisable at December 31, 2015		Weighted- Average Exercise Price
	$3.22-$3.99		817,064		4.64	$	3.78		348,581	$	3.76
	$4.00-$4.99		427,500		2.79	$	4.47		393,750		4.44
	$5.00-$9.99		581,833		2.84	$	6.60		481,833		6.45
	$10.00-$15.00		431,572		3.30	$	12.48		31,572		12.18

	$3.22-$15.00		2,257,969		3.57	$	6.30		1,255,736	$	5.22

The weighted average fair value of options granted during the years ended December 31, 2015 and 2014 was $2.32 and $1.60, 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, 2015 and 2014 was $364 and $3, respectively.

Cash flows from excess tax benefits are classified as a part of cash flows from financing activities. Excess tax benefits are realized tax benefits from tax deductions for exercised options in excess of the deferred tax asset attributable to stock compensation costs for such options. We recorded excess tax benefits totaling $287 in 2015, and $0 in 2014. Cash received from option exercises under our stock-based compensation plans for the years ended December 31, 2015 and 2014 was $538 and $11, respectively.

c. Restricted Stock Awards

On January 29, 2013, we granted 120,000 contingent restricted stock units to our President and Chief Executive Officer, Michael D. Popielec, subject to shareholder approval, which was obtained on June 4, 2013. These restricted stock units vest as follows: (i) 30,000 shares of our common stock will vest on the later of January 1, 2014 or the date when our common stock first reaches a closing price of $4.00 per share for 15 trading days in a 30 trading day period; (ii) 30,000 shares of our common stock will vest on the later of January 1, 2014 or the date when our common stock first reaches a closing price of $5.00 per share for 15 trading days in a 30 trading day period; (iii) 30,000 shares of our common stock will vest on the later of January 1, 2015 or the date when our common stock first reaches a closing price of $4.00 per share for 15 trading days in a 30 trading day period; and (iv) 30,000 shares of our common stock will vest on the later of January 1, 2015 or the date when our common stock first reaches a closing price of $5.00 per share for 15 trading days in a 30 trading day period.

The restricted stock units described in (i) and (iii) had achieved their closing price condition prior to shareholder approval and were valued at the closing price on the date of grant. The restricted stock units described in (ii) and (iv) had not yet achieved their closing price conditions and were valued utilizing a Monte Carlo simulation to determine fair value and the derived service period. The weighted average assumptions utilized in this simulation included the risk-free interest rate of 0.21%, volatility of 59.08% and no dividend payouts. The weighted average fair value per share was estimated at $3.62 for an aggregate value of $434. Of this amount, $150 was recognized in selling, general and administrative expenses in the years ended December 31, 2014. The restricted stock units described in (ii) and (iv) both vested during 2015.

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. $82 and $29 of expense was recorded in 2015 and 2014, respectively, relating to these units. At December 31, 2015, there was $49 of unrecognized compensation expense related to restricted stock grants.

d. Reserved Shares

We have reserved 3,596,719 shares of common stock under the various stock option plans, warrants and restricted stock awards as of December 31, 2015.

- 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.

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Reference 15: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Note 11 - Income Taxes

12 Months Ended

Dec. 31, 2015

Note 11 - Income Taxes

Note 11 - Income Taxes

Note 11 - Income Taxes

Our income tax provision consists of:

	Years Ended December 31,
	2015		2014
Current:
Federal	$	4	$	—
State		15		12
Foreign		111		65
		130		77
Deferred:
Federal		169		220
State		—		—
Foreign		11		(29	)
		180		191
Total income tax provision	$	310	$	268

The income tax provision (benefit) related to discontinued operations was immaterial in 2014.

The deferred tax provision in both 2015 and 2014 is principally a result of the increase in the net deferred tax liability related to deferred tax liabilities generated from goodwill and certain intangible assets that cannot be predicted to reverse for book purposes during our loss carryforward periods. In 2015, the deferred provision was reduced by a deferred tax benefit amounting to $51 relating to our $150 impairment of a trademark.

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 liabilities and assets are as follows:

	Years Ended December 31,
	2015			2014
Deferred tax liabilities:
Property, plant and equipment	$	—		$	—
Intangible assets		4,631			4,462
Total deferred tax liabilities		4,631			4,462

Deferred tax assets:
Property, plant and equipment		288			88
Net operating loss carryforwards		27,283			20,164
Tax credit carryforwards		1,596			1,455
Intangible assets		3,391			3,841
Accrued expenses, reserves and other		2,127			2,509
Total deferred tax assets		34,685			28,057
Valuation allowance for deferred tax assets		(34,593	)		(27,951	)
Net deferred tax assets		92			106

Net deferred tax liabilities	$	4,539		$	4,356

Net deferred tax liabilities is comprised of the following balance sheet amounts:

	Years Ended December 31,
	2015			2014

Current deferred tax assets	$	92		$	106
Non-current deferred tax liabilities		(4,631	)		(4,462	)
	$	(4,539	)	$	(4,356	)

The valuation allowance for deferred tax assets increased $6,642 and $659 in the years ended December 31, 2015 and 2014, respectively. The 2015 increase in the valuation allowance included an increase of $7,296 relating to the release of our unrecognized tax benefit during 2015 (see below). Excluding the effect of the release of the unrecognized tax benefit during 2015, the valuation allowance would have decreased by $654.

In 2015 and 2014, in the U.S. and the U.K., we continue to report a valuation allowance for our deferred tax assets that cannot be offset by reversing temporary differences. We continue to conclude that, based on historical factors, it is more likely than not that we will not fully utilize our U.S. and U.K. NOLs that have accumulated over time. The recognition of a valuation allowance on our deferred tax assets results from our evaluation of all available evidence, both positive and negative. The assessment of the realizability of the NOLs is based on a number of factors including, our history of net operating losses, the volatility of our earnings, our historical operating volatility, our historical inability to accurately forecast earnings for future periods and the continued uncertainty of the general business climate as of the end of 2015. We believe that these historical factors represent negative evidence sufficient to conclude that we should record a full valuation allowance against our deferred tax assets. In both 2015 and 2014, we have not recorded a valuation allowance against our foreign deferred tax assets as we believe that it is more likely than not that they will be realized. We continually assess the carrying value of this asset based on relevant accounting standards.

As of December 31, 2015, we have foreign and domestic NOLs and credit carryforwards totaling approximately $86,800 and $1,600, respectively, available to reduce future taxable income. Included in our NOL carryforward are foreign loss carryforwards of approximately $12,400 which can be carried forward indefinitely. The domestic NOL carryforward of $74,400 expires beginning in 2019, through 2034. The domestic NOL carryforward includes approximately $3,000 for which a benefit will be recorded in capital in excess of par value when realized.

For financial reporting purposes, income (loss) from continuing operations before income taxes is as follows:

	Years Ended December 31,
	2015		2014
United States	$	2,582	$	(1,808	)
Foreign		568		6
	$	3,150	$	(1,802	)

There are no undistributed earnings of our foreign subsidiaries, at December 31, 2015 or 2014.

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 (loss) from continuing operations before income taxes as follows:

	Years Ended December 31,
	2015			2014

Statutory income tax rate		34.0	%		34.0	%
(Increase) decrease in tax provision resulting from:
Equity compensation		2.2			(12.9	)
Income tax credits		(4.5	)		4.2
Foreign tax rates		(2.2	)		(1.9	)
Release of unrecognized tax benefits		(231.6	)		—
Valuation allowance		210.9			(36.6	)
Other		1.0			(1.7	)
Effective income tax rate		9.8	%		(14.9	%)

Accounting for Uncertainty in Income Taxes

Our unrecognized tax benefits related to uncertain tax positions at December 31, 2014 related to Federal and various state jurisdictions. The recorded the release of uncertain tax positions in 2015 relating to the conclusion of a federal tax examination, resulting in a $21.4 million increase in the amount of our reported domestic NOL carryforward. The following table summarizes the activity related to our unrecognized tax benefits:

	Years Ended December 31,
	2015			2014
Balance – beginning of year	$	7,296		$	7,296
Increases related to current year tax positions		—			—
Increases related to prior year tax positions		—			—
Decreases related to prior year tax positions		—			—
Expiration of statute of limitations for assessment of taxes		—			—
Settlements of examinations		(7,296	)		—
Balance – end of year	$	—		$	7,296

The total unrecognized tax benefit balances at December 31, 2014 was comprised of tax benefits that, if recognized, would result in a deferred tax asset and a corresponding increase in our valuation allowance. As a result, because the benefit would be offset by an increase in the valuation allowance, there would be no net effect on our effective tax rate or income tax provision. We recorded the release of this unrecognized tax benefit amount during 2015 upon the conclusion of a of a federal tax examination, resulting in a $21.4 million increase in the amount of our reported domestic NOL carryforward.

We are not required to accrue interest and penalties as the unrecognized tax benefits have been recorded as a decrease in our NOL. Interest and penalties would begin to accrue in the period in which the NOLs related to the uncertain tax positions are utilized. We do not expect our unrecognized tax benefits to change significantly over the next twelve months.

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 2001 through 2015 remain subject to examination by the Internal Revenue Service (“IRS”) due to our NOL carryforwards. Our U.S. tax matters for the years 2001 through 2015 remain subject to examination by various state and local tax jurisdictions due to our NOL carryforwards. Our tax matters for the years 2009 through 2015 remain subject to examination by the respective foreign tax jurisdiction authorities.

Note 12 - 401(k) Retirement Benefit Plan

12 Months Ended

Dec. 31, 2015

Note 12 - 401k Retirement Benefit Plan

Note 12 - 401(k) Retirement Benefit Plan

Note 12 - 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. Since January 2010, we have matched 50% on the first 4% contributed by an employee, or a maximum of 2% of the employee’s income. For 2015 and 2014, we contributed $201 and $164, respectively, to the 401(k) plan.

Note 13 - Business Segment Information

12 Months Ended

Dec. 31, 2015

Note 13 - Business Segment Information

Note 13 - Business Segment Information

Note 13 - 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, integrated communication system kits and communications and electronics systems design. We believe that reporting performance at the gross profit level is the best indicator of segment performance. As such we report segment performance at the gross profit level and operating expenses as Corporate charges.

2015:

	Battery & Energy Products		Communi- cations Systems		Discontinued Operations		Corporate			Total
Revenue	$	65,272	$	11,155	$	—	$	—		$	76,427
Segment contribution		18,698		4,618		—		(19,986	)		3,330
Interest expense, net								(245	)		(245	)
Miscellaneous								65			65
Income tax provision								(310	)		(310	)
Noncontrolling interest								29			29
Net income attributable to Ultralife										$	2,869

Total assets	$	35,295	$	28,849			$	17,378		$	81,522
Capital expenditures		355		973				562			1,890
Goodwill		4,790		11,493							16,283
Depreciation and amortization		1,625		98				984			2,707
Intangible asset impairment				150							150
Stock-based compensation		46		3				522			571

2014:

	Battery & Energy Products		Communi- cations Systems		Discontinued Operations			Corporate			Total
Revenue	$	56,772	$	9,722	$	—		$	—		$	66,494
Segment contribution		15,516		3,834		—			(20,793	)		(1,443	)
Interest expense, net									(205	)		(205	)
Miscellaneous									(154	)		(154	)
Income tax provision									(268	)		(268	)
Income (loss) from discontinued operations						(61	)					(61	)
Noncontrolling interest									15			15
Net loss attributable to Ultralife											$	(2,116	)

Total assets	$	38,415	$	29,056				$	20,171		$	87,642
Capital expenditures		1,400		1,066					206			2,672
Goodwill		4,914		11,493								16,407
Depreciation and amortization		2,089		89					955			3,133
Stock-based compensation		28		4					971			1,003

U.S. and Non-U.S. Revenue Information (in millions)¹:

2015:	Total Revenue		United States			Non-United States
Battery & Energy Products	$	65.3	$	37.1		$	28.2
Communications Systems		11.1		9.6			1.5
Total	$	76.4	$	46.7		$	29.7
				61	%		39	%

2014:	Total Revenue		United States			Non-United States
Battery & Energy Products	$	56.8	$	30.7		$	26.1
Communications Systems		9.7		8.7			1.0
Total	$	66.5	$	39.4		$	27.1
				59	%		41	%

¹Sales classified to U.S. include shipments to U.S.-based prime contractors which in some cases may serve non-U.S. projects

Long-lived assets (including goodwill and intangible assets) held outside the U.S., principally in China, were $4,748 and $5,153 at December 31, 2015 and 2014, respectively.

Commercial and Government/Defense Revenue Information:

2015:	Total Revenue		Commercial			Government/ Defense
Battery & Energy Products	$	65.3	$	33.7		$	31.6
Communications Systems		11.1		—			11.1
Total	$	76.4	$	33.7		$	42.7
				44	%		56	%

2014:	Total Revenue		Commercial			Government/ Defense
Battery & Energy Products	$	56.8	$	30.1		$	26.7
Communications Systems		9.7		—			9.7
Total	$	66.5	$	30.1		$	36.4
				45	%		55	%

- 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.

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+ Details

Note 14 - Fire at Manufacturing Facility

12 Months Ended

Dec. 31, 2015

Note 14 - Fire At Manufacturing Facility

Note 14 - Fire at Manufacturing Facility

Note 14 - Fire at Manufacturing Facility

In June 2011, we experienced a fire that damaged certain inventory and machinery and equipment at our facility in China. The fire occurred after business hours and was fully extinguished quickly with no injuries, and the plant was back in full operation shortly thereafter with no significant disruption in supply or service to customers. We maintain adequate insurance coverage for this operation.

The total amount of the loss pertaining to assets and the related expenses was approximately $1,589, including damaged inventory, business interruption and lost profits. Previous payments received against the loss claim total approximately $1,286, and no gain or loss has been recognized upon receipt of these partial payments. As of December 31, 2015, we reflect a receivable from the insurance company relating to this claim of $177, which is net of our deductible of approximately $125, and represents additional proceeds we expect to receive when the insurer finalizes the claim.

Accounting Policies, by Policy (Policies)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Principles of Consolidation

Final adjustments relating to the divested operations of RedBlack Communications, Inc. (“RedBlack”) are reported as discontinued operations in the 2014 statement of operations.

Use of Estimates

Management's Use of Judgment and Estimates

Reclassifications

Reclassifications

Certain items previously reported in specific financial statement captions have been reclassified to conform to the current presentation.

Cash and Cash Equivalents

Accounts Receivable and Allowance for Doubtful Accounts

Changes in our allowance for doubtful accounts during the years ended December 31, 2015 and 2014 were as follows:

	2015			2014
Balance at beginning of year	$	340		$	288
Amounts charged to expense		31			52
Net write-offs (recoveries)		(53	)		—
Foreign currency translation		(18	)		—
Total	$	300		$	340

Inventories

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment are stated at cost. Estimated useful lives are as follows:

Buildings 10 – 20 years

Machinery and Equipment 5 – 10 years

Furniture and Fixtures 3 – 10 years

Computer Hardware and Software 3 – 5 years

Leasehold Improvements Lesser of useful life or lease term

Long-Lived Assets, Goodwill and Intangibles

Long-Lived Assets, Goodwill and Intangibles

Translation of Foreign Currency

Translation of Foreign Currency

Revenue Recognition

Revenue Recognition

Warranty Reserves

Warranty Reserves

Shipping and Handling Costs

Shipping and Handling Costs

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.

Advertising Expenses

Advertising Expenses

Research and Development

Research and Development

Environmental Costs

Environmental Costs

Income Taxes

Income Taxes

Concentration Related to Customers and Suppliers

Concentration Related to Customers and Suppliers

We had no customers who comprised 10% or more of our trade accounts receivable at December 31, 2015. We had one customer who comprised 16% of our trade accounts receivable at December 31, 2014.

Fair Value Measurements and Disclosures

Fair Value Measurements and Disclosures

Level 1:

Quoted prices in active markets for identical assets or liabilities.

Level 2:

Level 3:

Unobservable inputs supported by little or no market activity that are significant to the fair value of the assets or liabilities.

Earnings (Loss) Per Share

Earnings (Loss) Per Share

Stock-Based Compensation

Stock-Based Compensation

Segment Reporting

Segment Reporting

Recent Accounting Pronouncements

Recent Accounting Pronouncements

Note 5 - Supplemental Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2015

Dec. 31, 2014

Note 5 - Supplemental Balance Sheet Information

Inventory

	December 31,
	2015		2014
Raw materials	$	11,602	$	15,100
Work in process		1,560		1,489
Finished products		10,652		9,497
Total	$	23,814	$	26,086

Major classes of property, plant and equipment

	December 31,
	2015			2014
Land	$	123		$	123
Buildings and leasehold improvements		7,490			7,437
Machinery and equipment		49,609			48,054
Furniture and fixtures		1,974			1,811
Computer hardware and software		4,585			4,452
Construction in progress		745			1,351
		64,526			63,228
Less – Accumulated depreciation		(55,488	)		(53,416	)
Total	$	9,038		$	9,812

Goodwill activity by segment

	Battery & Energy Products			Communi- cations Systems		Total
Balance – January 1, 2014	$	4,926		$	11,493	$	16,419
Effect of foreign currency translation		(12	)		—		(12	)
Balance – December 31, 2014		4,914			11,493		16,407
Effect of foreign currency translation		(124	)		—		(124	)
Balance – December 31, 2015	$	4,790		$	11,493	$	16,283

Composition of intangible assets

	December 31, 2015
	Cost		Accumulated Amortization		Net
Trademarks	$	3,411	$	—	$	3,411
Patents and technology		4,482		4,217		265
Customer relationships		3,971		3,716		255
Distributor relationships		370		355		15
Total other intangible assets	$	12,234	$	8,288	$	3,946

	December 31, 2014
	Cost		Accumulated Amortization		Net
Trademarks	$	3,567	$	—	$	3,567
Patents and technology		4,509		4,114		395
Customer relationships		4,029		3,679		350
Distributor relationships		391		365		26
Total other intangible assets	$	12,496	$	8,158	$	4,338

Amortization of intangible assets

	Year ended December 31,
	2015		2014
Research and development expense	$	130	$	176
Selling, general and administrative expense		105		129
Total	$	235	$	305

Note 6 - Fair Value of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2015

Note 1 - Summary Of Operations And Significant Accounting Policies

Assets Measured at Fair Value on a Non-recurring Basis

Assets Measured at Fair Value on a Non-recurring Basis
	Balance, December 31, 2015		Level 1		Level 2		Level 3		Total Gain / (Loss)
Goodwill – Battery & Energy Products Segment	$	4,790	$	—	$	—	$	4,790	$	—
Goodwill – Communications Systems Segment		11,493		—		—		11,493		—
Trademark – Battery & Energy Products Segment		711		—		—		711		—
Trademarks – Communications Systems Segment		2,700		—		—		2,700		(150	)
Total	$	19,694	$	—	$	—	$	19,694	$	(150	)

Note 9 - Commitment and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Note 9 - Commitment And Contingencies Tables

Changes in product warranty liability

	2015			2014
Balance, January 1	$	376		$	513
Provision (reversal) for warranties issued		(90	)		122
Settlements made		(94	)		(259	)
Balance, December 31	$	192		$	376

Note 10 - Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2015

Dec. 31, 2014

Note 10 - Shareholders Equity

Components of stock-based compensation expense

	2015		2014
Stock options	$	489	$	614
Restricted stock grants:
Employee		82		29
President and CEO		—		150
Board of Directors compensation –
stock grant		—		210
Total	$	571	$	1,003

Option assumptions

	Years Ended December 31,
	2015			2014
Risk-free interest rate		0.72	%		1.10	%
Volatility factor		48.54	%		50.70	%
Dividends		0.00	%		0.00	%
Weighted average expected life (years)		4.15			4.15
Forfeiture rate		13.8	%		13.8	%

Stock option activity

The following tables summarize data for the stock options issued by us:

Year Ended December 31, 2015
	Number of Shares			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value
Shares under option – January 1		2,056,122		$	6.66
Options granted		411,250			4.68
Options exercised		(137,937	)		3.90
Options forfeited or expired		(71,466	)		11.86
Shares under option – December 31		2,257,969		$	6.30		3.57	$	3,094
Vested and expected to vest -
December 31		2,093,294		$	6.45		3.39	$	2,731

Options exercisable – December 31		1,255,736		$	5.22		2.44	$	1,786

Year Ended December 31, 2014
	Number of Shares			Weighted Average Exercise Price Per Share
Shares under option – January 1		2,131,622		$	6.99
Options granted		252,500			3.94
Options exercised		(3,067	)		3.67
Options forfeited or expired		(324,933	)		6.77
Shares under option – December 31		2,056,122		$	6.66

Options exercisable – December 31		1,296,619		$	5.63

Options - range of exercise prices

		Option outstanding						Options exercisable
Range of Exercise Prices		Number of Outstanding Options – December 31, 2015		Weighted-Average Remaining Contractual Life		Weighted- Average Exercise Price		Number of Options Exercisable at December 31, 2015		Weighted- Average Exercise Price
	$3.22-$3.99		817,064		4.64	$	3.78		348,581	$	3.76
	$4.00-$4.99		427,500		2.79	$	4.47		393,750		4.44
	$5.00-$9.99		581,833		2.84	$	6.60		481,833		6.45
	$10.00-$15.00		431,572		3.30	$	12.48		31,572		12.18

	$3.22-$15.00		2,257,969		3.57	$	6.30		1,255,736	$	5.22

Note 11 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Note 11 - Income Taxes

Income tax provision

	Years Ended December 31,
	2015		2014
Current:
Federal	$	4	$	—
State		15		12
Foreign		111		65
		130		77
Deferred:
Federal		169		220
State		—		—
Foreign		11		(29	)
		180		191
Total income tax provision	$	310	$	268

Deferred income taxes

	Years Ended December 31,
	2015			2014
Deferred tax liabilities:
Property, plant and equipment	$	—		$	—
Intangible assets		4,631			4,462
Total deferred tax liabilities		4,631			4,462

Deferred tax assets:
Property, plant and equipment		288			88
Net operating loss carryforwards		27,283			20,164
Tax credit carryforwards		1,596			1,455
Intangible assets		3,391			3,841
Accrued expenses, reserves and other		2,127			2,509
Total deferred tax assets		34,685			28,057
Valuation allowance for deferred tax assets		(34,593	)		(27,951	)
Net deferred tax assets		92			106

Net deferred tax liabilities	$	4,539		$	4,356

Net deferred tax liabilities

	Years Ended December 31,
	2015			2014

Current deferred tax assets	$	92		$	106
Non-current deferred tax liabilities		(4,631	)		(4,462	)
	$	(4,539	)	$	(4,356	)

Income (loss) from continuing operations

	Years Ended December 31,
	2015		2014
United States	$	2,582	$	(1,808	)
Foreign		568		6
	$	3,150	$	(1,802	)

Income tax rate reconciliation

	Years Ended December 31,
	2015			2014

Statutory income tax rate		34.0	%		34.0	%
(Increase) decrease in tax provision resulting from:
Equity compensation		2.2			(12.9	)
Income tax credits		(4.5	)		4.2
Foreign tax rates		(2.2	)		(1.9	)
Release of unrecognized tax benefits		(231.6	)		—
Valuation allowance		210.9			(36.6	)
Other		1.0			(1.7	)
Effective income tax rate		9.8	%		(14.9	%)

Uncertainty in income taxes

	Years Ended December 31,
	2015			2014
Balance – beginning of year	$	7,296		$	7,296
Increases related to current year tax positions		—			—
Increases related to prior year tax positions		—			—
Decreases related to prior year tax positions		—			—
Expiration of statute of limitations for assessment of taxes		—			—
Settlements of examinations		(7,296	)		—
Balance – end of year	$	—		$	7,296

Note 13 - Business Segment Information (Tables)

12 Months Ended

Dec. 31, 2015

Dec. 31, 2014

Note 13 - Business Segment Information

Business segment information

	Battery & Energy Products		Communi- cations Systems		Discontinued Operations		Corporate			Total
Revenue	$	65,272	$	11,155	$	—	$	—		$	76,427
Segment contribution		18,698		4,618		—		(19,986	)		3,330
Interest expense, net								(245	)		(245	)
Miscellaneous								65			65
Income tax provision								(310	)		(310	)
Noncontrolling interest								29			29
Net income attributable to Ultralife										$	2,869

Total assets	$	35,295	$	28,849			$	17,378		$	81,522
Capital expenditures		355		973				562			1,890
Goodwill		4,790		11,493							16,283
Depreciation and amortization		1,625		98				984			2,707
Intangible asset impairment				150							150
Stock-based compensation		46		3				522			571

	Battery & Energy Products		Communi- cations Systems		Discontinued Operations			Corporate			Total
Revenue	$	56,772	$	9,722	$	—		$	—		$	66,494
Segment contribution		15,516		3,834		—			(20,793	)		(1,443	)
Interest expense, net									(205	)		(205	)
Miscellaneous									(154	)		(154	)
Income tax provision									(268	)		(268	)
Income (loss) from discontinued operations						(61	)					(61	)
Noncontrolling interest									15			15
Net loss attributable to Ultralife											$	(2,116	)

Total assets	$	38,415	$	29,056				$	20,171		$	87,642
Capital expenditures		1,400		1,066					206			2,672
Goodwill		4,914		11,493								16,407
Depreciation and amortization		2,089		89					955			3,133
Stock-based compensation		28		4					971			1,003

Domestic and international revenue by segment

	Battery & Energy Products		Communi- cations Systems		Discontinued Operations			Corporate			Total
Revenue	$	56,772	$	9,722	$	—		$	—		$	66,494
Segment contribution		15,516		3,834		—			(20,793	)		(1,443	)
Interest expense, net									(205	)		(205	)
Miscellaneous									(154	)		(154	)
Income tax provision									(268	)		(268	)
Income (loss) from discontinued operations						(61	)					(61	)
Noncontrolling interest									15			15
Net loss attributable to Ultralife											$	(2,116	)

Total assets	$	38,415	$	29,056				$	20,171		$	87,642
Capital expenditures		1,400		1,066					206			2,672
Goodwill		4,914		11,493								16,407
Depreciation and amortization		2,089		89					955			3,133
Stock-based compensation		28		4					971			1,003

U.S. and Non-U.S. Revenue Information (in millions)¹:

2015:	Total Revenue		United States			Non-United States
Battery & Energy Products	$	65.3	$	37.1		$	28.2
Communications Systems		11.1		9.6			1.5
Total	$	76.4	$	46.7		$	29.7
				61	%		39	%

2014:	Total Revenue		United States			Non-United States
Battery & Energy Products	$	56.8	$	30.7		$	26.1
Communications Systems		9.7		8.7			1.0
Total	$	66.5	$	39.4		$	27.1
				59	%		41	%

Sector revenue by segment

2015:	Total Revenue		Commercial			Government/ Defense
Battery & Energy Products	$	65.3	$	33.7		$	31.6
Communications Systems		11.1		—			11.1
Total	$	76.4	$	33.7		$	42.7
				44	%		56	%

2014:	Total Revenue		Commercial			Government/ Defense
Battery & Energy Products	$	56.8	$	30.1		$	26.7
Communications Systems		9.7		—			9.7
Total	$	66.5	$	30.1		$	36.4
				45	%		55	%

Note 1 - Summary of Operations and Significant Accounting Policies - Allowance for Doubtful Accounts Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 1 - Summary Of Operations And Significant Accounting Policies - Allowance For Doubtful Accounts Activity Details
Balance at beginning of year	$ 340	$ 288
Amounts charged to expense	31	52
Net write-offs (recoveries)	(53)	0
Foreign currency translation	(18)	0
Balance at ending of year	$ 300	$ 340

Note 1 - Summary of Operations and Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2015
Buildings [Member] \| Minimum [Member]
Estimated Useful Life	10 years
Buildings [Member] \| Maximum [Member]
Estimated Useful Life	20 years
Machinery And Equipment [Member] \| Minimum [Member]
Estimated Useful Life	5 years
Machinery And Equipment [Member] \| Maximum [Member]
Estimated Useful Life	10 years
Furniture And Fixtures [Member] \| Minimum [Member]
Estimated Useful Life	3 years
Furniture And Fixtures [Member] \| Maximum [Member]
Estimated Useful Life	10 years
Computer Hardware And Software [Member] \| Minimum [Member]
Estimated Useful Life	3 years
Computer Hardware And Software [Member] \| Maximum [Member]
Estimated Useful Life	5 years

Note 1 - Summary of Operations and Significant Accounting Policies (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 1 - Summary Of Operations And Significant Accounting Policies Details Narrative
Impairments of long-lived assets	$ 0	$ 0
Impairments of indefinite lived intangible assets	150	0
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months		166
Finite-Lived Intangible Assets, Amortization Expense, Year Two		121
Finite-Lived Intangible Assets, Amortization Expense, Year Three		85
Finite-Lived Intangible Assets, Amortization Expense, Year Four		62
Finite-Lived Intangible Assets, Amortization Expense, Year Five		49
Foreign Currency Transaction Gain (Loss), Realized	48	235
Advertising Expense	59	43
Total research and development spending	6,112	5,648
Customer sponsored R&D included in cost of goods sold	509	315
Revenue recognized relating to customer sponsored R&D	509	317
Write-off of capitalized costs - NYSERDA project	$ 0	$ 161
Significant customer disclosure - revenue from large defense contractor	18.00%	24.00%
Significant customers - trade accounts receivable - largest	0.00%	16.00%
Employee stock options excluded from calculation of diluted earnings per share	945,687	2,195,222
Stock options included in calculation of diluted earnings per share	1,312,282	0
Number of shares added to earnings per share calculation by stock option	260,318	0
Restricted stock units included in calculation of diluted earnings per share	32,800	0
Number of shares added to earnings per share calculation by restricted stock units	15,385	0

Note 4 - Share Repurchase Program (Details) - USD ($) $ in Thousands	12 Months Ended			25 Months Ended
	Dec. 31, 2015	May. 01, 2015	Dec. 31, 2014	Jun. 02, 2016
Stockholders' Equity Note [Abstract]
Stock repurchase plan - shares authorized to be repurchased		1,800,000		3,400,000
Total shares repurchased	2,258,929		227,974
Cost of shares repurchased	$ 9,388		$ 762
Shares repurchased under share repurchase plan	2,225,437		216,754
Shares repurchased under share repurchase plan - value	$ 9,228		$ 722

Note 5 - Supplemental Balance Sheet Information - Components of Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Note 5 - Supplemental Balance Sheet Information - Components Of Inventory Details
Raw materials	$ 11,602	$ 15,100
Work in process	1,560	1,489
Finished products	10,652	9,497
Total	$ 23,814	$ 26,086

Note 5 - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Note 5 - Supplemental Balance Sheet Information
Land	$ 123	$ 123
Buildings and leasehold improvements	7,490	7,437
Machinery and equipment	49,609	48,054
Furniture and fixtures	1,974	1,811
Computer hardware and software	4,585	4,452
Construction in progress	745	1,351
Total	64,526	63,228
Less-Accumulated depreciation	(55,488)	(53,416)
Total	$ 9,038	$ 9,812

Note 5 - Supplemental Balance Sheet Information - Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Amortization expense	$ 235	$ 305
Research and Development Expense
Amortization expense	130	176
SellingGeneralAndAdministrativeExpenses
Amortization expense	$ 105	$ 129

Note 5 - Supplemental Balance Sheet Information - Goodwill Activity by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Goodwill - beginning	$ 16,407	$ 16,419
Effect of foreign currency translation	(124)	(12)
Goodwill - ending	16,283	16,407
Battery [Member]
Goodwill - beginning	4,914	4,926
Effect of foreign currency translation	(124)	(142)
Goodwill - ending	4,790	4,914
Communications Systems
Goodwill - beginning	11,493	11,493
Effect of foreign currency translation	0	0
Goodwill - ending	$ 11,493	$ 11,493

Note 5 - Supplemental Balance Sheet Information - Composition of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Cost	$ 12,234	$ 12,496
Accumulated Amortization	8,288	8,158
Net	3,946	4,338
Trademarks
Cost	3,411	3,567
Accumulated Amortization	0	0
Net	3,411	3,567
Patents and Technology
Cost	4,482	4,509
Accumulated Amortization	4,217	4,114
Net	265	395
Customer Relationships
Cost	3,971	4,029
Accumulated Amortization	3,716	3,679
Net	255	350
Distributor Relationships
Cost	370	391
Accumulated Amortization	355	365
Net	$ 15	$ 26

Note 6 - Fair Value of Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill	$ 16,283	$ 16,407	$ 16,419
Fair Value, Inputs, Level 1 [Member] \| Battery And Energy Products
Goodwill	0
Trademark	0
Fair Value, Inputs, Level 1 [Member] \| Communications Systems
Goodwill	0
Trademark	0
Fair Value, Inputs, Level 2 [Member] \| Battery And Energy Products
Goodwill	0
Trademark	0
Fair Value, Inputs, Level 2 [Member] \| Communications Systems
Goodwill	0
Trademark	0
Fair Value, Inputs, Level 3 [Member] \| Battery And Energy Products
Goodwill	4,790
Trademark	711
Fair Value, Inputs, Level 3 [Member] \| Communications Systems
Goodwill	11,493
Trademark	$ 2,700

Note 7 - Operating Leases - Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Note 7 - Operating Leases - Future Minimum Lease Payments Details
2016	$ 571
2017	589
2018	544
2019	415
2020	$ 100

Note 8 - Debt (Details Narrative) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Note 8 - Debt (Details Narrative) - USD ($) $ in Thousands	May. 24, 2017	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Note 8 - Debt Details Narrative
Line of Credit Facility, Maximum Borrowing Capacity		$ 20,000
Letter of credit facility		$ 1,000
Potential Credit Facility Increase (in Dollars)	$ 35,000
Line Of Credit, Maximum Borrowing Capacity, Percentage Of Eligible Accounts Receivable		85.00%
Line Of Credit, Maximum Borrowing Capacity, Percentage Of Eligible Accounts Line Of Credit, Maximum Borrowing Capacity, Percentage Of Book Value Of Eligible Inventory		65.00%
Line Of Credit, Maximum Borrowing Capacity, Percentage Of Appraised Net Orderly Liquidation Value Of Eligible Inventory		85.00%
Line Of Credit, Minimum Additional Borrowing Capacity Allowed In addition to Accounts Receivable		$ 7,500
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		0.375%
Line of Credit Facility, Amount Outstanding (in Dollars)		$ 0
Line of Credit Facility, Interest Rate at Period End		2.43%
Line of Credit Facility, Remaining Borrowing Capacity (in Dollars)		$ 8,927
Cash and Cash Equivalents, at Carrying Value (in Dollars)		$ 14,393	$ 17,711	$ 16,066
Minimum fixed charge coverage ratio		115.00%

Note 9 - Commitments and Contingencies - Warranties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 9 - Commitments And Contingencies - Warranties Details
Balance, January 1	$ 376	$ 513
Warranties issued	(90)	122
Settlements made	(94)	(259)
Balance, December 31	$ 192	$ 376

Note 10 - Shareholders' Equity - Stock Option Assumptions (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 10 - Shareholders Equity - Stock Option Assumptions Details
Risk-free interest rate	0.72%	1.10%
Volatility factor	48.54%	50.70%
Dividends	0.00%	0.00%
Weighted average expected life (years)	4 years 54 days	4 years 54 days
Forfeiture rate	13.80%	13.80%

Note 10 - Shareholders' Equity - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Jan. 03, 2011	Mar. 07, 2008	Dec. 31, 2015	Dec. 31, 2014
Note 10 - Shareholders Equity - Stock Option Activity Details
Shares under option - beginning			2,056,122	2,131,622
Options granted			411,250	252,500
Options exercised			(137,937)	(3,067)
Options forfeited or expired			(71,466)	(324,933)
Shares under option - ending			2,257,969	2,056,122
Shares under option - exercisable - ending			1,255,736	1,296,619
Shares under option vested and expected to vest - ending			2,093,294	1,957,633
Weighted average exercise price per share of options outstanding - beginning			$ 6.66	$ 6.99
Weighted average exercise price per share of options granted	50,000	50,000	4.68	3.94
Weighted average exercise price per share of options exercised			$ 3.9	$ 3.67
Weighted average exercise price per share of options forfeited or expired			11.86	6.77
Weighted average exercise price per share of options outstanding - ending			6.30	6.66
Weighted average exercise price per share of options exercisable - ending			5.22	5.63
Weighted average exercise price per share of options vested and expected to vest - ending			$ 6.45	$ 5.33
Weighted average remaining contractual term of options outstanding - ending			3 years 208 days	3 years 292 days
Weighted average remaining contractual term of options exercisable - ending			2 years 161 days	3 years 256 days
Weighted average remaining contractual term of options vested and expected to vest - ending			3 years 142 days	3 years 7 days
Shares under option - ending - aggregate intrinsic value			$ 3,094	$ 0
Shares exercisable - ending - aggregate intrinsic value			1,786	0
Shares vested and expected to vest - aggregate intrinsic value			$ 2,731	$ 0

Note 10 - Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended			12 Months Ended		13 Months Ended
	Jan. 03, 2011	Mar. 07, 2008	Jan. 29, 2013	Dec. 30, 2011	Dec. 30, 2010	Dec. 31, 2015	Dec. 31, 2014	Jan. 29, 2014	Jun. 02, 2014	Jun. 30, 2004
Note 7 - Shareholders' Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized									1,750,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized for Grants other than Options									800,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	50,000	50,000				4.68	3.94
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number (2004 LTIP)							1,447,219
Share Price (in Dollars per share)	$ 6.58	$ 12.74
Share Based Payment Award, Options, Annual Incremental Vesting	12,500
Share Based Payment Award, Options, Term				5 years
Share-based Compensation (in Dollars)						$ 571	$ 1,003
Share-based compensation relating to options							614
Share-based compensation relating to restricted stock units - CEO							150
Share-based compensation relating to restricted stock units - others							$ 29
Grant date fair value of restricted stock units awarded							$ 3.24
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)						$ 440	$ 381
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition						1 year 256 days	1 year 146 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)						$ 2.32	$ 1.6
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value (in Dollars)						$ 364	$ 3
Proceeds from Stock Options Exercised (in Dollars)						538	11
Excess tax benefits from option exercises						287	0
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)						$ 49	$ 130
Shares of common stock reserved for issuance under all plans						3,596,719
Long Term Incentive Plan [Member]
Note 7 - Shareholders' Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized										750,000
Contingent Restricted Stock Units [Member] \| President And Chief Executive Officer [Member]
Note 7 - Shareholders' Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			120,000
Option Grant 2 [Member]
Note 7 - Shareholders' Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				4 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross				250,000
Share Price (in Dollars per share)				$ 6.42				$ 5.00
Share Based Payment Award, Options, Annual Incremental Vesting				62,500				30,000
Number of days in period minimum share price requirement			15 days
Number Of Days In Period, Minimum Share Price Requirement, Term			30 days
Option Grant 4 [Member]
Note 7 - Shareholders' Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				4 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross				200,000
Share Price (in Dollars per share)			$ 5.00		$ 15.00
Share Based Payment Award, Options, Annual Incremental Vesting			30,000	50,000
Minimum Share Price Requirement (in Dollars per share)					$ 15.00
Number of days in period minimum share price requirement			15 days	15 days
Number Of Days In Period, Minimum Share Price Requirement, Term			30 days	30 days
Option Grant 3 [Member]
Note 7 - Shareholders' Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				4 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross				200,000
Share Price (in Dollars per share)			$ 4.00	$ 10.00
Share Based Payment Award, Options, Annual Incremental Vesting			30,000	50,000
Minimum Share Price Requirement (in Dollars per share)				$ 10.00
Number of days in period minimum share price requirement			15 days	15 days
Number Of Days In Period, Minimum Share Price Requirement, Term			30 days	30 days
Option Grant 1 [Member]
Note 7 - Shareholders' Equity (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					4 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross					50,000
Share Price (in Dollars per share)			$ 4.00		$ 6.42
Share Based Payment Award, Options, Annual Incremental Vesting			30,000		12,500
Number of days in period minimum share price requirement								15 days
Number Of Days In Period, Minimum Share Price Requirement, Term								30 days

Note 10 - Shareholders' Equity - Options Range of Exercise Prices (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Number of options outstanding	2,257,969	2,056,122	2,131,622
Weighted Average Remaining Contractual Life	3 years 208 days
Weighted average exercise price	$ 6.30	$ 6.66	$ 6.99
Number of options exercisable	1,255,736	1,296,619
Weighed average exercise price - exercisable	$ 5.22	$ 5.63
$3.22-$3.99
Number of options outstanding	817,064
Weighted Average Remaining Contractual Life	4 years 234 days
Weighted average exercise price	$ 3.78
Number of options exercisable	348,581
Weighed average exercise price - exercisable	$ 3.76
$4.00-$4.99
Number of options outstanding	427,500
Weighted Average Remaining Contractual Life	2 years 288 days
Weighted average exercise price	$ 4.47
Number of options exercisable	393,750
Weighed average exercise price - exercisable	$ 4.4
$5.00-$9.99
Number of options outstanding	581,833
Weighted Average Remaining Contractual Life	2 years 307 days
Weighted average exercise price	$ 6.6
Number of options exercisable	481,833
Weighed average exercise price - exercisable	$ 6.45
$10-$15
Number of options outstanding	431,572
Weighted Average Remaining Contractual Life	3 years 110 days
Weighted average exercise price	$ 12.48
Number of options exercisable	31,572
Weighed average exercise price - exercisable	$ 12.18

Note 11 - Income Taxes - Provison (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 11 - Income Taxes - Provison Details
Current federal tax provision	$ 4	$ 0
Current state tax provision	15	12
Current foreign tax provision	111	65
Total current tax provision	130	77
Deferred federal tax provision	169	220
Deferred state tax provision	0	0
Deferred foreign tax provision (benefit)	11	(29)
Total deferred tax provision (benefit)	180	191
Total income tax provision	$ 310	$ 268

Note 11 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax liabilities:
Property, Plant and Equipment	$ 0	$ 0
Intangible Assets	4,631	4,462
Total deferred tax liabilities	4,631	4,462
Deferred tax assets:
Property, Plant and Equipment	288	88
Net operating loss carryforwards	27,283	20,164
Tax credit carryforwards	1,596	1,455
Intangible assets	3,391	3,841
Accrued expenses, reserves and other	2,127	2,509
Total deferred tax assets	34,685	28,057
Valuation allowance	(34,593)	(27,951)
Net deferred tax assets	92	106
Net deferred tax liabilities	$ 4,539	$ 4,356

Note 11 - Income Taxes - Net deferred tax liabilities comprised of the following balance sheet accounts (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Note 11 - Income Taxes - Net Deferred Tax Liabilities Comprised Of Following Balance Sheet Accounts Details
Current deferred tax assets	$ 92	$ 106
Current deferred tax liabilities	0	0
Non-current deferred tax liabilities	(4,631)	(4,462)
Net deferred tax liabilities	$ (4,539)	$ (4,356)

Note 11 - Income Taxes - United States and Foreign income loss from continuing operations before income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 11 - Income Taxes - United States And Foreign Income Loss From Continuing Operations Before Income Taxes Details
United States	$ 2,582	$ (1,808)
Foreign	568	6
Income (loss) from continuing operations before income taxes	$ 3,150	$ (1,802)

Note 11 - Income Taxes - Effecitve Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 11 - Income Taxes - Effecitve Rate Reconciliation Details
Statutory income tax rate	34.00%	34.00%
(Increase) decrease in tax provision resulting from:
Equity compensation	2.20%	(12.90%)
Income tax credits	(4.50%)	4.20%
Foreign tax rates	(2.20%)	(1.90%)
Release of unrecognized tax benefits	(231.60%)	0.00%
Valuation allowance	210.90%	(36.60%)
Other	1.00%	(1.70%)
Effective income tax rates	9.80%	(14.90%)

Note 11 - Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 11 - Income Taxes - Unrecognized Tax Benefits Details
Balance - beginning of year	$ 7,296	$ 7,296
Settlements of examinations	(7,296)	0
Balance - end of year	$ 0	$ 7,296

Note 11 - Income Taxes (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 11 - Income Taxes Details Narrative
Increase in valuation allowance for deferred tax assets	$ 6,642	$ 659
Increase in valuation allowance due to settlement of uncertain tax position	7,296
Decrease in valuation allowance excluding effect of settlement of uncertain tax position	(654)
Net operating loss carryforward	86,800	65,900
Net operating loss carryforward - domestic	74,400	53,500
Net operating loss carryforward - foreign	12,400	12,400
Tax credit carryforwards	1,600	1,400
Net operating loss carryforward for which a benefit will be recorded in capital when realized	3,000	2,900
Impairment of trademark	150	$ 0
Tax benefit associated with impairment of trademark	(51)
Increase in net operating loss carryforward due to settlement of uncertain tax position	$ 21,400

Note 12 - 401k Retirement Benefit Plan (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 12 - 401k Retirement Benefit Plan Details Narrative
Defined Contribution Plan, Employer Matching Contribution, As A Percentage Of Employee's Contribution	50.00%	50.00%
Defined Contribution Plan, Maximum Employee Contribution Percentage Subject To Employer Matching Contribution	4.00%	4.00%
Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.	2.00%	2.00%
Employer discretionary contribution	$ 201	$ 164

Note 13 - Business Segment Information - Segment Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue	$ 76,427	$ 66,494
Segment contribution	3,330	(1,443)
Interest expense, net		(205)
Miscellaneous	(65)	154
Income tax provision	(310)	(268)
Income (loss) from discontinued operations	0	(61)
Noncontrolling interest	(29)	(15)
Net income (loss) attributable to Ultralife	2,869	(2,116)
Total assets	81,522	87,642
Goodwill	16,283	16,407	$ 16,419
Stock-based compensation	571	1,003
Corporate
Revenue	0	0
Segment contribution	(19,986)	(20,793)
Interest expense, net	(245)	(205)
Miscellaneous	65	154
Income tax provision	310	268
Noncontrolling interest	29	15
Total assets	17,378	20,171
Capital expenditures	562	206
Depreciation and amortization	984	955
Stock-based compensation	522	971
DiscontinuedOperations
Revenue	0	0
Segment contribution	0	0
Income (loss) from discontinued operations	0	(61)
Battery [Member]
Revenue	65,272	56,772
Segment contribution	18,698	15,516
Total assets	35,295	38,415
Capital expenditures	355	1,400
Goodwill	4,790	4,914
Depreciation and amortization	1,625	2,089
Stock-based compensation	46	28
Communications Systems
Revenue	11,155	9,722
Segment contribution	4,618	3,834
Total assets	28,849	29,056
Capital expenditures	973	1,066
Goodwill	11,493	11,493
Depreciation and amortization	98	89
Stock-based compensation	$ 3	$ 4

Note 13 - Business Segment Information (Details narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Foreign
Long-lived assets held outside the U.S.	$ 4,748	$ 5,153
Battery & Energy Products Revenue	28,200	26,100
Communications Systems Revenue	1,500	1,000
United States
Battery & Energy Products Revenue	37,100	30,700
Communications Systems Revenue	$ 9,600	$ 8,700

Note 14 - Fire at Manufacturing Facility (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Apr. 30, 2013	Jun. 30, 2011	Dec. 31, 2015
Extraordinary and Unusual Items [Abstract]
Business Interruption Loss, Gross		$ 1,589
Proceeds from Insurance Settlement, Operating Activities	$ 1,286
Gain on Business Interruption Insurance Recovery	$ 0
Insurance Settlements Receivable			$ 177
Business Interruption, Insurance Deductible			$ 125

Note 2 - Dispositions, Relocations and Exit Activities - New Lease (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 2 - Dispositions Relocations And Exit Activities - New Lease Details
Government reimbursement received - China factory move		$ 815
Government reimbursement recognized - China factory move	$ 219	596
Expenses recognized - China factory move	$ 221	$ 841

Note 3 - Acquisitions (Details) $ in Thousands	Jan. 13, 2016 USD ($)
Note 2 - Dispositions Relocations And Exit Activities - New Lease Details
Aggregate purchase price paid for Acquisition - USD	$ 11,200
Net working capital adjustment - USD	$ 200

Note 7 - Operating Leases - Rent Expense (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 7 - Operating Leases - Rent Expense Details Narrative
Rent expense	$ 672	$ 775

Note 8 - Debt - Interest Rate Margins (Details)	Dec. 31, 2015
Greater than $8 million \| Alternate Base Rate Loans
Interest Rate Margin on Outstanding Borrowings	1.00%
Greater than $8 million \| LIBOR Rate Loans
Interest Rate Margin on Outstanding Borrowings	2.00%
$5-$8million \| Alternate Base Rate Loans
Interest Rate Margin on Outstanding Borrowings	1.25%
$5-$8million \| LIBOR Rate Loans
Interest Rate Margin on Outstanding Borrowings	2.25%
Less than $5 million \| Alternate Base Rate Loans
Interest Rate Margin on Outstanding Borrowings	1.50%
Less than $5 million \| LIBOR Rate Loans
Interest Rate Margin on Outstanding Borrowings	2.50%