0001437749-24-013121 | 10-Q | XBRL Viewer

Commitments and Contingencies Disclosure [Text Block]

8.	*COMMITMENTS AND CONTINGENCIES*

Purchase Commitments

As of March 31, 2024, we have made commitments to purchase approximately $330 of production machinery and equipment.

Product Warranties

We estimate future warranty costs to be incurred for product failure rates, material usage and service costs in the development of our warranty obligations. Estimated future costs are based on actual past experience and are generally estimated as a percentage of sales over the warranty period. Changes in our product warranty liability during the first three months of 2024 and 2023 were as follows:

	Three-month period ended March 31,
	2024			2023
Accrued warranty obligations – beginning	$	547		$	323
Accruals for warranties issued		141			84
Settlements made		(49	)		(21	)
Accrued warranty obligations – ending	$	639		$	386

Contingencies and Legal Matters

We are subject to legal proceedings and claims that arise from time to time in the normal course of business. We believe that the final disposition of any such matters will not have a material adverse effect on the Company’s financial position, results of operations or cash flows. However, recognizing that legal matters are subject to inherent uncertainties, there exists the possibility that ultimate resolution of these matters could have a material adverse impact on the Company’s financial position, results of operations or cash flows. We are not aware of any such situations at this time.

Note 7 - Operating Leases (Tables)

3 Months Ended

Mar. 31, 2024

Lease, Cost [Table Text Block]

	Three-month period ended March 31,
	2024		2023
Operating lease cost	$	262	$	241
Variable lease cost		28		28
Total lease cost	$	290	$	269

Lessee, Lease, Cash Flow Information [Table Text Block]

	Three-month period ended March 31,
	2024		2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	265	$	226
Right-of-use assets obtained in exchange for lease liabilities:	$	-	$	-

Lessee, Lease, Balance Sheet Information [Table Text Block]

	Balance sheet classification	March 31, 2024			December 31, 2023
Assets:
Operating lease right-of-use asset	Other noncurrent assets	$	3,177		$	3,589

Liabilities:
Current operating lease liability	Accrued expenses and other current liabilities	$	780		$	894
Operating lease liability, net of current portion	Other noncurrent liabilities		2,350			2,644
Total operating lease liability		$	3,130		$	3,538

Weighted-average remaining lease term (years)			5.2			5.3

Weighted-average discount rate			6.3	%		4.5	%

Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]

Maturity of operating lease liabilities
2024	$	620
2025		691
2026		618
2027		639
2028		642
Thereafter		458
Total lease payments		3,668
Less: Imputed interest		(538	)
Present value of remaining lease payments	$	3,130

Note 4 - Supplemental Balance Sheet Information - Summary of Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Balance	$ 37,571
Effect of foreign currency translation	(72)
Balance – March 31, 2024	37,499
Battery & Energy Products Segment [Member]
Balance	26,078
Effect of foreign currency translation	(72)
Balance – March 31, 2024	26,006
Communications Systems Segment [Member]
Balance	11,493
Effect of foreign currency translation	0
Balance – March 31, 2024	$ 11,493

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Note 7 - Operating Leases (Details Textual)	Mar. 31, 2024
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	1 year
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	8 years

Note 5 - Stock-based Compensation - Stock Option Activity (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) $ / shares shares
Outstanding, shares (in shares) \| shares	1,250,595
Outstanding, weighted average exercise price (in dollars per share) \| $ / shares	$ 7.1
Granted, shares (in shares) \| shares	3,460
Granted, weighted average exercise price (in dollars per share) \| $ / shares	$ 6.84
Exercised, shares (in shares) \| shares	(103,839)
Exercised, weighted average exercise price (in dollars per share) \| $ / shares	$ 6.6
Forfeited or expired, shares (in shares) \| shares	(86,356)
Forfeited or expired, weighted average exercise price (in dollars per share) \| $ / shares	$ 8.96
Outstanding, shares (in shares) \| shares	1,063,860
Outstanding, weighted average exercise price (in dollars per share) \| $ / shares	$ 7
Outstanding, weighted average remaining contractual term (Year)	4 years 2 months 19 days
Outstanding, aggregate intrinsic value \| $	$ 2,258
Vested and expected to vest, shares (in shares) \| shares	964,552
Vested and expected, weighted average exercise price (in dollars per share) \| $ / shares	$ 7.07
Vested and expected to vest, weighted average remaining contractual term (Year)	4 years 21 days
Vested and expected to vest, aggregate intrinsic value \| $	$ 1,987
Exercisable, shares (in shares) \| shares	604,537
Exercisable, weighted average exercise price (in dollars per share) \| $ / shares	$ 7.5
Exercisable, weighted average remaining contractual term (Year)	2 years 11 months 1 day
Exercisable, aggregate intrinsic value \| $	$ 1,018

Note 8 - Commitments and Contingencies - Changes in Product Warranty Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accrued warranty obligations – beginning	$ 547	$ 323
Accruals for warranties issued	141	84
Settlements made	(49)	(21)
Accrued warranty obligations – ending	$ 639	$ 386

Note 5 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2024

Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]

	Three-month period ended
	March 31,		March 31,
	2024		2023
Stock options	$	156	$	138
Restricted stock grants		5		1
Total	$	161	$	139

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding at January 1, 2024		1,250,595		$	7.10
Granted		3,460			6.84
Exercised		(103,839	)		6.60
Forfeited or expired		(86,356	)	$	8.96
Outstanding at March 31, 2024		1,063,860		$	7.00		4.22	$	2,258
Vested and expected to vest at March 31, 2024		964,552		$	7.07		4.06	$	1,987
Exercisable at March 31, 2024		604,537		$	7.50		2.92	$	1,018

Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues	$ 41,927	$ 31,916
Cost of products sold	30,457	24,480
Gross profit	11,470	7,436
Operating expenses:
Research and development	1,756	2,032
Selling, general and administrative	5,651	5,378
Total operating expenses	7,407	7,410
Operating income	4,063	26
Interest and financing expense	(520)	(424)
Miscellaneous income (expense)	64	(70)
Total other expense	(456)	(494)
Income (loss) before income taxes	3,607	(468)
Income tax provision (benefit)	703	(133)
Net income (loss)	2,904	(335)
Net income attributable to non-controlling interest	13	11
Net income (loss) attributable to Ultralife Corporation	2,891	(346)
Other comprehensive loss:
Foreign currency translation adjustments	(232)	197
Comprehensive income attributable to Ultralife Corporation	$ 2,659	$ (149)
Net income (loss) per share attributable to Ultralife common stockholders – basic (in dollars per share)	$ 0.21	$ 0.03
Net income (loss) per share attributable to Ultralife common stockholders – diluted (in dollars per share)	$ 0.21	$ 0.03
Weighted average shares outstanding – basic (in shares)	16,396	16,135
Potential common shares (in shares)	122	0
Weighted average shares outstanding - diluted (in shares)	16,518	16,135

Note 9 - Revenue Recognition (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Extended Product Warranty Accrual	$ 1,335	$ 1,407
Accrued Expenses and Other Current Liabilities [Member]
Extended Product Warranty Accrual, Current	287	287
Other Noncurrent Liabilities [Member]
Extended Product Warranty Accrual, Noncurrent	1,048	$ 1,120
Certain Communications Systems Products [Member]
Contract with Customer, Liability, Revenue Recognized	$ 72
Certain Communications Systems Products [Member] \| Maximum [Member]
Extended Product Warranty, Term	8 years

Note 9 - Revenue Recognition

3 Months Ended

Mar. 31, 2024

Revenue from Contract with Customer [Text Block]

9.	*REVENUE RECOGNITION*

Revenues are generated from the sale of products. Performance obligations are met and revenue is recognized upon transfer of control to the customer, which is generally upon shipment. When contract terms require transfer of control upon delivery at a customer’s location, revenue is recognized on the date of delivery. For products shipped under vendor-managed inventory arrangements, revenue is recognized and billed when the product is consumed by the customer, at which point control has transferred and there are no further obligations by the Company. Revenue is measured as the amount of consideration we expect to receive in exchange for shipped product. Sales, value-added and other taxes billed and collected from customers are excluded from revenue. Customers, including distributors, do not have a general right of return.

Separately priced extended warranty contracts are offered on certain Communications Systems products for a duration of up to eight (8) years. Extended warranties are treated as separate performance obligations and recognized to revenue evenly over the term of the respective contract. Revenue not yet recognized on extended warranty contracts is recorded as deferred revenue on the consolidated balance sheet. For the quarter ended March 31, 2024, revenue recognized on extended warranties was $72.

As of March 31, 2024, there was deferred revenue on extended warranty contracts of $1,335, comprised of $287 expected to be recognized as revenue within one (1) year and classified as accrued expenses and other current liabilities on our consolidated balance sheet, and $1,048 expected to be recognized as revenue over the remaining duration of the respective contracts and classified as other noncurrent liabilities on our consolidated balance sheet.

As of December 31, 2023, there was deferred revenue on extended warranty contracts of $1,407, comprised of $287 expected to be recognized as revenue within one (1) year and classified as accrued expenses and other current liabilities on our consolidated balance sheet, and $1,120 expected to be recognized as revenue evenly over the remaining duration of the respective contracts and classified as other noncurrent liabilities on our consolidated balance sheet.

As of March 31, 2024 and December 31, 2023, the Company had no other unsatisfied performance obligations for contracts with an original expected duration of greater than one year. Pursuant to Topic 606, we have applied the practical expedient with respect to disclosure of the deferral and future expected timing of revenue recognition for transaction price allocated to remaining performance obligations.

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

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Note 7 - Operating Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Weighted-average remaining lease term (years) (Year)	5 years 2 months 12 days	5 years 3 months 18 days
Weighted-average discount rate	6.30%	4.50%
Other Noncurrent Assets [Member]
Operating lease right-of-use asset	$ 3,177	$ 3,589
Accrued Expenses and Other Current Liabilities [Member]
Current operating lease liability	780	894
Other Noncurrent Liabilities [Member]
Operating lease liability, net of current portion	2,350	2,644
Accrued Expenses and Other Current Liabilites and Other Noncurrent Liabilities [Member]
Total operating lease liability	$ 3,130	$ 3,538

Note 1 - Basis of Presentation

3 Months Ended

Mar. 31, 2024

Business Description and Accounting Policies [Text Block]

1.	*BASIS OF PRESENTATION*

The accompanying unaudited consolidated financial statements of Ultralife Corporation and its subsidiaries (the “Company” or “Ultralife”) have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) for interim financial information and with the instructions to Rule 8-03 of Regulation S-X. Accordingly, they do not include all the information and notes for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals and adjustments) considered necessary for a fair presentation of the consolidated financial statements have been included. Results for interim periods should not be considered indicative of results to be expected for a full year. Reference should be made to the consolidated financial statements and related notes thereto contained in our Form 10-K for the year ended December 31, 2023.

The December 31, 2023 consolidated balance sheet information referenced herein was derived from audited financial statements but does not include all disclosures required by GAAP.

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

Recently Adopted Accounting Guidance

None.

Recent Accounting Guidance Not Yet Adopted

In December 2023, the Financial Accounting Standards Board (“FASB”) issued ASU 2023-09 "Income Taxes (Topics 740): Improvements to Income Tax Disclosures" to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for our annual periods beginning January 1, 2025, with early adoption permitted. We are currently evaluating the potential effect that the updated standard will have on our financial statement disclosures.

Note 2 - Debt (Details Textual) - Amended Credit Agreement [Member] $ in Thousands	Dec. 13, 2021 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023
Debt Issuance Costs, Gross		$ 107
Term Loan Facility [Member] \| Long-term Debt, Current Maturities [Member]
Secured Debt, Total		2,000
Revolving Credit Facility [Member]
Secured Debt, Total		5,667
Long-Term Line of Credit, Total		$ 19,580
Maximum Consolidated Senior Leverage Ratio		3	3.5
Revolving Credit Facility [Member] \| Minimum [Member]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.15%
Revolving Credit Facility [Member] \| Maximum [Member]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%
Revolving Credit Facility [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	0.10%
Revolving Credit Facility [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate	1.85%
Revolving Credit Facility [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate	2.15%
KeyBank [Member] \| Term Loan Facility [Member]
Debt Instrument, Term	5 years
Debt Instrument, Face Amount	$ 10,000
KeyBank [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	30,000
Line Of Credit Facility Maximum Borrowing Capacity Contingent On Bank Approval	$ 50,000

Note 5 - Stock-based Compensation (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Proceeds from Stock Options Exercised	$ 685	$ 0
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 699
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	1 year 3 months 18 days
Restricted Stock [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 31	$ 2
Restricted Stock [Member] \| The 2014 Long-term Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	3 years

Note 8 - Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2024

Schedule of Product Warranty Liability [Table Text Block]

	Three-month period ended March 31,
	2024			2023
Accrued warranty obligations – beginning	$	547		$	323
Accruals for warranties issued		141			84
Settlements made		(49	)		(21	)
Accrued warranty obligations – ending	$	639		$	386

Note 3 - Earnings Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Text Block]

3.	*EARNINGS PER SHARE*

Basic earnings (loss) per share (“EPS”) is computed by dividing net income (loss) attributable to Ultralife Corporation by the weighted average shares outstanding during the period. Diluted EPS includes the dilutive effect of securities, if any, and is calculated using the treasury stock method.

For the three-month period ended March 31, 2024, there were 539,358 outstanding stock options and 5,229 unvested restricted stock awards included in the calculation of diluted weighted average shares outstanding, as such securities were dilutive, resulting in 122,515 potential common shares included in the calculation of diluted EPS. There were 524,502 outstanding stock options for the three-month period ended March 31, 2024 not included in EPS as the effect would be anti-dilutive.

For the comparable three-month period ended March 31, 2023, there were no outstanding awards included in the calculation of diluted weighted average shares outstanding and no potential common shares included in the calculation of diluted EPS, as no securities were dilutive. There were 1,420,611 outstanding stock options and 2,500 unvested restricted stock awards not included in the calculation of diluted EPS for the three-month period ended March 31, 2023, as the effect would be antidilutive.

Note 10 - Business Segment Information

3 Months Ended

Mar. 31, 2024

Segment Reporting Disclosure [Text Block]

10.

BUSINESS SEGMENT INFORMATION

We report our results in two operating segments: Battery & Energy Products and Communications Systems. The Battery & Energy Products segment includes Lithium 9-volt, cylindrical and various other non-rechargeable batteries, in addition to rechargeable batteries, uninterruptable power supplies, charging systems and accessories. The Communications Systems segment includes RF amplifiers, power supplies, cable and connector assemblies, amplified speakers, equipment mounts, case equipment, man-portable systems, integrated communication systems for fixed or vehicle applications and communications and electronics systems design. We believe that reporting performance at the gross profit level is the best indicator of segment performance.

Three-month period ended March 31, 2024:

	Battery & Energy Products		Communications Systems		Corporate			Total
Revenues	$	34,989	$	6,938	$	-		$	41,927
Segment contribution		8,986		2,484		(7,407	)		4,063
Other expense						(456	)		(456	)
Tax provision						(703	)		(703	)
Non-controlling interest						(13	)		(13	)
Net income attributable to Ultralife Corporation								$	2,891

Three-month period ended March 31, 2023:

	Battery & Energy Products		Communications Systems		Corporate			Total
Revenues	$	28,470	$	3,446	$	-		$	31,916
Segment contribution		6,512		924		(7,410	)		26
Other expense						(494	)		(494	)
Tax benefit						133			133
Non-controlling interest						(11	)		(11	)
Net loss attributable to Ultralife Corporation								$	(346	)

The following tables disaggregate our business segment revenues by major source and geography.

Commercial and Government/Defense Revenue Information:

Three-month period ended March 31, 2024:

	Total Revenue		Commercial			Government/ Defense
Battery & Energy Products	$	34,989	$	24,140		$	10,849
Communications Systems		6,938		-			6,938
Total	$	41,927	$	24,140		$	17,787
				58	%		42	%

Three-month period ended March 31, 2023:

	Total Revenue		Commercial			Government/ Defense
Battery & Energy Products	$	28,470	$	22,219		$	6,251
Communications Systems		3,446		-			3,446
Total	$	31,916	$	22,219		$	9,697
				70	%		30	%

U.S. and Non-U.S. Revenue Information¹:

Three-month period ended March 31, 2024:

	Total Revenue		United States			Non-United States
Battery & Energy Products	$	34,989	$	19,603		$	15,386
Communications Systems		6,938		4,858			2,080
Total	$	41,927	$	24,461		$	17,466
				58	%		42	%

Three-month period ended March 31, 2023:

	Total Revenue		United States			Non-United States
Battery & Energy Products	$	28,470	$	13,768		$	14,702
Communications Systems		3,446		2,877			569
Total	$	31,916	$	16,645		$	15,271
				52	%		48	%

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

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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Note 3 - Earnings Per Share (Details Textual) - shares	3 Months Ended
Note 3 - Earnings Per Share (Details Textual) - shares	Mar. 31, 2024	Mar. 31, 2023
Dilutive Securities Included in Computation of Earnings Per Share Amount Stock Option	539,358	0
Dilutive Securities Included in Computation of Earnings Per Share Amount Restricted Stock	5,229
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements	122,515	0
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	524,502	1,420,611

Note 6 - Income Taxes

3 Months Ended

Mar. 31, 2024

Income Tax Disclosure [Text Block]

6.	*INCOME TAXES*

Our effective tax rate for the three-month periods ended March 31, 2024 and March 31, 2023 was 19.5% and 28.4%, respectively. The period-over-period change was primarily attributable to the geographic mix of our operating results.

As of December 31, 2023, we have domestic net operating loss (“NOL”) carryforwards of $27,200, which expire 2031 through 2035, and domestic tax credits of $2,900, which expire 2028 through 2043, available to reduce future taxable income. As of March 31, 2024, management has concluded it is more likely than not that these domestic NOL and credit carryforwards will be fully utilized.

As of March 31, 2024, for certain past operations in the U.K., we continue to report a valuation allowance for NOL carryforwards of approximately $9,800, nearly all of which can be carried forward indefinitely. Utilization of the net operating losses may be limited due to the change in the past U.K. operation and cannot currently be used to reduce taxable income at our other U.K. subsidiary, Accutronics Ltd. There are no other deferred tax assets related to the past U.K. operations.

As of March 31, 2024, we have not recognized a valuation allowance against our other foreign deferred tax assets, as realization is considered to be more likely than not.

As of March 31, 2024, the Company maintains its assertion that all foreign earnings will be indefinitely reinvested in those operations, other than earnings generated in the U.K.

There were no unrecognized tax benefits related to uncertain tax positions at March 31, 2024 and December 31, 2023.

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 2020 thru 2022 remain subject to IRS examination. Our U.S. tax matters for 2001-2002, 2005-2007, 2009, and 2011-2015 also remain subject to IRS examination due to the remaining availability of net operating loss carryforwards generated in those years. Our U.S. tax matters for 2013 thru 2022 remain subject to examination by various state and local tax jurisdictions. Our tax matters for the years 2013 thru 2022 remain subject to examination by the respective foreign tax jurisdiction authorities.

The entire disclosure for income tax.

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Note 10 - Business Segment Information - Revenue by Business Segment Sector (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues	$ 41,927	$ 31,916
UNITED STATES
Revenues	$ 24,461	$ 16,645
Revenue, percentage	58.00%	52.00%
Non-US [Member]
Revenues	$ 17,466	$ 15,271
Revenue, percentage	42.00%	48.00%
Commercial [Member]
Revenues	$ 24,140	$ 22,219
Revenue, percentage	58.00%	70.00%
Government & Defense [Member]
Revenues	$ 17,787	$ 9,697
Revenue, percentage	42.00%	30.00%
Battery & Energy Products Segment [Member]
Revenues	$ 34,989	$ 28,470
Battery & Energy Products Segment [Member] \| UNITED STATES
Revenues	19,603	13,768
Battery & Energy Products Segment [Member] \| Non-US [Member]
Revenues	15,386	14,702
Battery & Energy Products Segment [Member] \| Commercial [Member]
Revenues	24,140	22,219
Battery & Energy Products Segment [Member] \| Government & Defense [Member]
Revenues	10,849	6,251
Communications Systems Segment [Member]
Revenues	6,938	3,446
Communications Systems Segment [Member] \| UNITED STATES
Revenues	4,858	2,877
Communications Systems Segment [Member] \| Non-US [Member]
Revenues	2,080	569
Communications Systems Segment [Member] \| Commercial [Member]
Revenues	0	0
Communications Systems Segment [Member] \| Government & Defense [Member]
Revenues	$ 6,938	$ 3,446

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Note 7 - Operating Leases - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
2024	$ 620
2025	691
2026	618
2027	639
2028	642
Thereafter	458
Total lease payments	3,668
Less: Imputed interest	(538)
Accrued Expenses and Other Current Liabilites and Other Noncurrent Liabilities [Member]
Present value of remaining lease payments	$ 3,130	$ 3,538

Note 4 - Supplemental Balance Sheet Information - Composition of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Cost	$ 28,214	$ 28,247
Accumulated Amortization	13,347	13,140
Net	14,867	15,107
Customer Relationships [Member]
Cost	13,072	13,092
Accumulated Amortization	6,796	6,656
Net	6,276	6,436
Patented Technology [Member]
Cost	5,597	5,606
Accumulated Amortization	5,344	5,322
Net	253	284
Trade Names [Member]
Cost	4,645	4,647
Accumulated Amortization	673	647
Net	3,972	4,000
Trademarks [Member]
Cost	3,400	3,402
Accumulated Amortization	0	0
Net	3,400	3,402
Other Intangible Assets [Member]
Cost	1,500	1,500
Accumulated Amortization	534	515
Net	$ 966	$ 985

Note 4 - Supplemental Balance Sheet Information (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Restricted Cash and Cash Equivalents	$ 0		$ 82
Depreciation	740	$ 762
Amortization of Intangible Assets	228	209
Selling, General and Administrative Expenses [Member]
Amortization of Intangible Assets	203	185
Research and Development Expense [Member]
Amortization of Intangible Assets	25	$ 24
NETHERLANDS
Restricted Cash and Cash Equivalents	$ 82

Note 10 - Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2024

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Battery & Energy Products		Communications Systems		Corporate			Total
Revenues	$	34,989	$	6,938	$	-		$	41,927
Segment contribution		8,986		2,484		(7,407	)		4,063
Other expense						(456	)		(456	)
Tax provision						(703	)		(703	)
Non-controlling interest						(13	)		(13	)
Net income attributable to Ultralife Corporation								$	2,891

	Battery & Energy Products		Communications Systems		Corporate			Total
Revenues	$	28,470	$	3,446	$	-		$	31,916
Segment contribution		6,512		924		(7,410	)		26
Other expense						(494	)		(494	)
Tax benefit						133			133
Non-controlling interest						(11	)		(11	)
Net loss attributable to Ultralife Corporation								$	(346	)

Schedule of Revenues from External Customers by Business Segment Sector [Table Text Block]

	Total Revenue		Commercial			Government/ Defense
Battery & Energy Products	$	34,989	$	24,140		$	10,849
Communications Systems		6,938		-			6,938
Total	$	41,927	$	24,140		$	17,787
				58	%		42	%

	Total Revenue		Commercial			Government/ Defense
Battery & Energy Products	$	28,470	$	22,219		$	6,251
Communications Systems		3,446		-			3,446
Total	$	31,916	$	22,219		$	9,697
				70	%		30	%

	Total Revenue		United States			Non-United States
Battery & Energy Products	$	34,989	$	19,603		$	15,386
Communications Systems		6,938		4,858			2,080
Total	$	41,927	$	24,461		$	17,466
				58	%		42	%

	Total Revenue		United States			Non-United States
Battery & Energy Products	$	28,470	$	13,768		$	14,702
Communications Systems		3,446		2,877			569
Total	$	31,916	$	16,645		$	15,271
				52	%		48	%

Note 7 - Operating Leases

3 Months Ended

Mar. 31, 2024

Lessee, Operating Leases [Text Block]

7.	*OPERATING LEASES*

The Company has operating leases predominantly for operating facilities. As of March 31, 2024, the remaining lease terms on our operating leases range from approximately less than one (1) year to eight (8) years. Lease terms include renewal options reasonably certain of exercise. There is no transfer of title or option to purchase the leased assets upon expiration. There are no residual value guarantees or material restrictive covenants.

The components of lease expense for the current and prior-year comparative periods were as follows:

	Three-month period ended March 31,
	2024		2023
Operating lease cost	$	262	$	241
Variable lease cost		28		28
Total lease cost	$	290	$	269

Supplemental cash flow information related to leases was as follows:

	Three-month period ended March 31,
	2024		2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	265	$	226
Right-of-use assets obtained in exchange for lease liabilities:	$	-	$	-

Supplemental consolidated balance sheet information related to leases was as follows:

	Balance sheet classification	March 31, 2024			December 31, 2023
Assets:
Operating lease right-of-use asset	Other noncurrent assets	$	3,177		$	3,589

Liabilities:
Current operating lease liability	Accrued expenses and other current liabilities	$	780		$	894
Operating lease liability, net of current portion	Other noncurrent liabilities		2,350			2,644
Total operating lease liability		$	3,130		$	3,538

Weighted-average remaining lease term (years)			5.2			5.3

Weighted-average discount rate			6.3	%		4.5	%

Future minimum lease payments as of March 31, 2024 are as follows:

Maturity of operating lease liabilities
2024	$	620
2025		691
2026		618
2027		639
2028		642
Thereafter		458
Total lease payments		3,668
Less: Imputed interest		(538	)
Present value of remaining lease payments	$	3,130

Note 10 - Business Segment Information (Details Textual)	3 Months Ended
	Mar. 31, 2024
Number of Operating Segments	2

Note 6 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Effective Income Tax Rate Reconciliation, Percent	19.50%	28.40%
Unrecognized Tax Benefits, Ending Balance	$ 0		$ 0
Domestic Tax Jurisdiction [Member] \| Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards			27,200
Tax Credit Carryforward, Amount			$ 2,900
Open Tax Year	2005 2006 2007 2009 2011 2012 2013 2014 2015
Foreign Tax Jurisdiction [Member]
Deferred Tax Assets, Valuation Allowance	$ 0
Foreign Tax Jurisdiction [Member] \| His Majesty's Revenue and Customs (HMRC) [Member]
Operating Loss Carryforwards	$ 9,800

Note 2 - Debt

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Text Block]

2.	*DEBT*

On December 13, 2021, Ultralife, Southwest Electronic Energy Corporation, a Texas corporation and wholly owned subsidiary of Ultralife (“SWE”), CLB, INC., a Texas corporation and wholly owned subsidiary of SWE (“CLB”), Ultralife Excell Holding Corp., a Delaware corporation and wholly owned subsidiary of Ultralife (“UEHC”), Ultralife Canada Holding Corp., a Delaware corporation and wholly owned subsidiary of UEHC (“UCHC”), and Excell Battery Corporation USA, a Texas corporation and wholly owned subsidiary of UEHC (“Excell USA”), as borrowers, entered into the Second Amendment Agreement with KeyBank National Association (“KeyBank” or the “Bank”), as lender and administrative agent, to amend the Credit and Security Agreement dated May 31, 2017 as amended by the First Amendment Agreement by and among Ultralife, SWE, CLB and KeyBank dated May 1, 2019 (the “Credit Agreement”). On November 28, 2022, Ultralife, SWE, CLB, UEHC, UCHC, Excell USA, and Excell Battery Canada ULC, a British Columbia unlimited liability corporation and wholly owned subsidiary of UCHC (“Excell Canada”), entered into that certain Third Amendment Agreement with KeyBank, to further amend the Credit Agreement to, among other things, facilitate the joinder of Excell Canada as a guarantor under the Credit Agreement and to replace the LIBOR benchmark thereunder with SOFR (the “Third Amendment Agreement”, and together with the Second Amendment Agreement and the Credit Agreement, the “Amended Credit Agreement”).

The Amended Credit Agreement, among other things, provides for a 5-year, $10,000 senior secured term loan (the “Term Loan Facility”) and extends the term of the $30,000 senior secured revolving credit facility (the “Revolving Credit Facility”, and together with the Term Loan Facility, the “Amended Credit Facilities”) through May 30, 2025. Up to six months prior to May 30, 2025, the Revolving Credit Facility may be increased to $50,000 with the Bank’s concurrence.

As of March 31, 2024, the Company had $5,667 outstanding principal on the Term Loan Facility, $2,000 of which is included in current portion of long-term debt on the balance sheet, and $19,580 outstanding on the Revolving Credit Facility. As of March 31, 2024, total unamortized debt issuance costs of $107, including placement, renewal and legal fees associated with the Amended Credit Agreement, are classified as a reduction of long-term debt on the balance sheet. Debt issuance costs are amortized to interest expense over the term of the Amended Credit Facilities.

The remaining availability under the Revolving Credit Facility is subject to certain borrowing base limits based on trade receivables and inventories.

The Company is required to repay the borrowings under the Term Loan Facility in equal consecutive monthly payments commencing on February 1, 2022, in arrears, together with applicable interest. All unpaid principal and accrued and unpaid interest with respect to the Term Loan Facility is due and payable in full on January 1, 2027. All unpaid principal and accrued and unpaid interest with respect to the Revolving Credit Facility is due and payable in full on May 30, 2025. The Company may voluntarily prepay principal amounts outstanding at any time subject to certain restrictions.

In addition to the customary affirmative and negative covenants, the Company must maintain a consolidated senior leverage ratio, as defined in the Amended Credit Agreement, of equal to or less than 3.5 to 1.0 for the fiscal quarters ending December 31, 2022 and March 31, 2023, and equal to or less than 3.0 to 1.0 for the fiscal quarters ending June 30, 2023 and thereafter. The Company was in full compliance with its covenants under the Amended Credit Agreement as of March 31, 2024.

Borrowings under the Amended Credit Facilities are secured by substantially all the assets of the Company and its subsidiaries.

Upon the effectiveness of the Third Amendment Agreement, interest accrues on outstanding indebtedness under the Amended Credit Facilities at the Daily Simple SOFR Rate, plus an index spread adjustment of 0.10%, plus the applicable margin. The applicable margin ranges from 185 to 215 basis points and is determined based on the Company’s senior leverage ratio.

The Company must pay a fee of 0.15% to 0.25% based on the average daily unused availability under the Revolving Credit Facility.

Payments must be made by the Company to the extent borrowings exceed the maximum amount then permitted to be drawn on the Amended Credit Facilities and from the proceeds of certain transactions. Upon the occurrence of an event of default, the outstanding obligations may be accelerated, and the Bank will have other customary remedies including resort to the security interest the Company provided to the Bank.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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Note 5 - Stock-based Compensation

3 Months Ended

Mar. 31, 2024

Shareholders' Equity and Share-Based Payments [Text Block]

5.	*STOCK-BASED COMPENSATION*

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

	Three-month period ended
	March 31,		March 31,
	2024		2023
Stock options	$	156	$	138
Restricted stock grants		5		1
Total	$	161	$	139

We have stock options outstanding from various stock-based employee compensation plans for which we record compensation cost relating to share-based payment transactions in our financial statements. As of March 31, 2024, there was $699 of total unrecognized compensation cost related to outstanding stock options, which is expected to be recognized over a weighted average period of 1.3 years.

The following table summarizes stock option activity for the three-month period ended March 31, 2024:

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding at January 1, 2024		1,250,595		$	7.10
Granted		3,460			6.84
Exercised		(103,839	)		6.60
Forfeited or expired		(86,356	)	$	8.96
Outstanding at March 31, 2024		1,063,860		$	7.00		4.22	$	2,258
Vested and expected to vest at March 31, 2024		964,552		$	7.07		4.06	$	1,987
Exercisable at March 31, 2024		604,537		$	7.50		2.92	$	1,018

Cash received from stock option exercises under our stock-based compensation plans for the three-month periods ended March 31, 2024 and March 31, 2023 was $685 and $0, respectively.

Restricted stock awards vest in equal annual installments over three (3) years. Unrecognized compensation cost related to unvested restricted shares at March 31, 2024 and March 31, 2023, respectively, was $31 and $2.

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Including Portion Attributable to Noncontrolling Interest [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2022	20,570,710
Balance at Dec. 31, 2022	$ 2,057	$ 187,405	$ (3,750)	$ (47,951)	$ (21,484)	$ 126	$ 116,403
Net income (loss)				(346)		11	(335)
Stock option exercises (in shares)	0
Stock-based compensation – stock options		138					138
Stock-based compensation – restricted stock		1					1
Foreign currency translation adjustments adjustments			197				197
Balance (in shares) at Mar. 31, 2023	20,570,710
Balance at Mar. 31, 2023	$ 2,057	187,544	(3,553)	(48,297)	(21,484)	137	$ 116,404
Balance (in shares) at Dec. 31, 2023	20,783,607						16,347,493
Balance at Dec. 31, 2023	$ 2,078	189,160	(3,660)	(40,754)	(21,492)	95	$ 125,427
Net income (loss)				2,891		13	$ 2,904
Stock option exercises (in shares)	103,839						103,839
Stock-based compensation – stock options		156					$ 156
Stock-based compensation – restricted stock		5					5
Foreign currency translation adjustments adjustments			(232)				$ (232)
Stock option exercises	$ 11	674			685
Balance (in shares) at Mar. 31, 2024	20,887,446						16,451,332
Balance at Mar. 31, 2024	$ 2,089	$ 189,995	$ (3,892)	$ (37,863)	$ (21,492)	$ 108	$ 128,945

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity.

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Note 4 - Supplemental Balance Sheet Information - Components of Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Raw materials	$ 30,168	$ 29,098
Work in process	3,593	3,187
Finished goods	10,060	9,930
Total	$ 43,821	$ 42,215

Note 4 - Supplemental Balance Sheet Information - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, plant and equipment, gross	$ 86,990	$ 87,601
Less: Accumulated depreciation	(66,320)	(66,484)
Property, plant and equipment, net	20,670	21,117
Land [Member]
Property, plant and equipment, gross	1,273	1,273
Building and Building Improvements [Member]
Property, plant and equipment, gross	16,007	15,998
Machinery and Equipment [Member]
Property, plant and equipment, gross	57,427	57,584
Furniture and Fixtures [Member]
Property, plant and equipment, gross	2,818	2,845
Computer Equipment [Member]
Property, plant and equipment, gross	7,770	7,868
Construction in Progress [Member]
Property, plant and equipment, gross	$ 1,695	$ 2,033

Note 7 - Operating Leases - Supplement Cash Flow Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating cash flows from operating leases	$ 265	$ 226
Right-of-use assets obtained in exchange for lease liabilities:	$ 0	$ 0

Note 8 - Commitments and Contingencies (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Capital Addition Purchase Commitments [Member]
Long-Term Purchase Commitment, Amount	$ 330

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
OPERATING ACTIVITIES:
Net income (loss)	$ 2,904	$ (335)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation	740	762
Amortization of intangible assets	228	209
Amortization of financing fees	16	16
Stock-based compensation	161	139
Deferred income taxes	650	(390)
Changes in operating assets and liabilities:
Accounts receivable	(3,562)	3,365
Inventories	(1,699)	(6,026)
Prepaid expenses and other assets	1,102	639
Accounts payable and other liabilities	(621)	256
Net cash used in operating activities	(81)	(1,365)
INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(372)	(497)
Net cash used in investing activities	(372)	(497)
FINANCING ACTIVITIES:
Borrowings on revolving credit facility	0	2,300
Payments on term loan facility	(500)	(500)
Proceeds from exercise of stock options	685	0
Net cash provided by financing activities	185	1,800
Effect of exchange rate changes on cash	89	(46)
DECREASE IN CASH	(179)	(108)
Cash, Beginning of period	10,278	5,713
Cash, End of period	$ 10,099	$ 5,605

Note 5 - Stock-based Compensation - Non-cash Stock Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Stock-based compensation expense	$ 161	$ 139
Share-Based Payment Arrangement, Option [Member]
Stock-based compensation expense	156	138
Restricted Stock [Member]
Stock-based compensation expense	$ 5	$ 1

Note 4 - Supplemental Balance Sheet Information (Tables)

3 Months Ended

Mar. 31, 2024

Cash, Cash Equivalents and Investments [Table Text Block]

	March 31,		December 31,
	2024		2023
Cash	$	10,099	$	10,196
Restricted cash		-		82
Total	$	10,099	$	10,278

Schedule of Inventory, Current [Table Text Block]

	March 31,		December 31,
	2024		2023
Raw materials	$	30,168	$	29,098
Work in process		3,593		3,187
Finished goods		10,060		9,930
Total	$	43,821	$	42,215

Property, Plant and Equipment [Table Text Block]

	March 31,			December 31,
	2024			2023
Land	$	1,273		$	1,273
Buildings and leasehold improvements		16,007			15,998
Machinery and equipment		57,427			57,584
Furniture and fixtures		2,818			2,845
Computer hardware and software		7,770			7,868
Construction in process		1,695			2,033
		86,990			87,601
Less: Accumulated depreciation		(66,320	)		(66,484	)
Property, plant and equipment, net	$	20,670		$	21,117

Schedule of Goodwill [Table Text Block]

	Battery & Energy			Communications
	Products			Systems		Total
Balance – December 31, 2023	$	26,078		$	11,493	$	37,571
Effect of foreign currency translation		(72	)		-		(72	)
Balance – March 31, 2024	$	26,006		$	11,493	$	37,499

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	at March 31, 2024
			Accumulated
	Cost		Amortization		Net
Customer relationships	$	13,072	$	6,796	$	6,276
Patents and technology		5,597		5,344		253
Trade names		4,645		673		3,972
Trademarks		3,400		-		3,400
Other		1,500		534		966
Total other intangible assets	$	28,214	$	13,347	$	14,867

	at December 31, 2023
			Accumulated
	Cost		Amortization		Net
Customer relationships	$	13,092	$	6,656	$	6,436
Patents and technology		5,606		5,322		284
Trade names		4,647		647		4,000
Trademarks		3,402		-		3,402
Other		1,500		515		985
Total other intangible assets	$	28,247	$	13,140	$	15,107

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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Note 10 - Business Segment Information - Segment Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues	$ 41,927	$ 31,916
Segment contribution	4,063	26
Other income (expense)	(456)	(494)
Income tax provision (benefit)	(703)	133
Non-controlling interest	(13)	(11)
Net loss attributable to Ultralife	2,891	(346)
Battery & Energy Products Segment [Member]
Revenues	34,989	28,470
Segment contribution	8,986	6,512
Communications Systems Segment [Member]
Revenues	6,938	3,446
Segment contribution	2,484	924
Corporate Segment [Member]
Revenues	0	0
Segment contribution	(7,407)	(7,410)
Other income (expense)	(456)	(494)
Income tax provision (benefit)	(703)	133
Non-controlling interest	$ (13)	$ (11)

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Note 4 - Supplemental Balance Sheet Information

3 Months Ended

Mar. 31, 2024