Ultralife (ULBI) 10-K 9 Feb 17 2016 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Feb. 08, 2017	Jun. 26, 2016
Document Information [Line Items]
Entity Registrant Name	Ultralife Corp
Entity Central Index Key	875,657
Trading Symbol	ulbi
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		15,363,658
Entity Public Float			$ 46,435,667
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current Assets:
Cash	$ 10,629	$ 14,393
Restricted Cash	77	140
Trade Accounts Receivable, Net of Allowance for Doubtful Accounts of $277 and $300, Respectively	13,179	11,430
Inventories, Net	23,456	23,814
Prepaid Expenses and Other Current Assets	2,079	1,900
Due from Insurance Company	0	177
Deferred Income Taxes	94	92
Total Current Assets	49,514	51,946
Property, Equipment and Improvements, Net	7,999	9,038
Goodwill	19,965	16,283
Other Intangible Assets, Net	7,194	3,946
Security Deposits and Other Non-Current Assets	72	309
Total Assets	84,744	81,522
Current Liabilities:
Accounts Payable	7,292	6,494
Accrued Compensation and Related Benefits	1,258	2,377
Accrued Expenses and Other Current Liabilities	2,606	1,749
Income Taxes Payable	172	227
Total Current Liabilities	11,328	10,847
Deferred Income Taxes	5,538	4,631
Other Non-Current Liabilities	18	28
Total Liabilities	16,884	15,506
Commitments and Contingencies (Note 7)
Shareholders' Equity:
Preferred Stock – Par Value $.10 Per Share; Authorized 1,000,000 Shares; None Issued
Common Stock – Par Value $.10 Per Share; Authorized 40,000,000 Shares; Issued – 19,324,723 Shares and 19,181,815 Shares, Respectively; Outstanding – 15,308,971 Shares and 15,322,155 Shares, Respectively	1,932	1,918
Capital in Excess of Par Value	178,163	177,007
Accumulated Deficit	(90,542)	(94,051)
Accumulated Other Comprehensive Loss	(3,080)	(907)
Treasury Stock - at Cost; 4,015,752 Shares and 3,859,660 Shares at December 31, 2016 and 2015, Respectively	(18,443)	(17,808)
Total Ultralife Corporation Equity	68,030	66,159
Non-Controlling Interest	(170)	(143)
Total Shareholders’ Equity	67,860	66,016
Total Liabilities and Shareholders' Equity	$ 84,744	$ 81,522

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Trade accounts receivable, allowance for doubtful accounts	$ 277	$ 300
Preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares issued (in shares)	19,324,723	19,181,815
Common stock, shares outstanding (in shares)	15,308,971	15,322,155
Treasury stock, shares (in shares)	4,015,752	3,859,660

Consolidated Statements of Inco

Consolidated Statements of Income and Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revenues	$ 82,460,000	$ 76,427,000
Cost of Products Sold	57,352,000	53,111,000
Gross Profit	25,108,000	23,316,000
Operating Expenses:
Research and Development	5,946,000	5,603,000
Selling, General and Administrative	15,399,000	14,233,000
Intangible Asset Impairment	0	150,000
Total Operating Expenses	21,345,000	19,986,000
Operating Income	3,763,000	3,330,000
Other (Expense) Income:
Interest Income	0	3,000
Interest and Financing Expense	(263,000)	(248,000)
Miscellaneous	80,000	65,000
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	3,580,000	3,150,000
Income Tax Provision	98,000	310,000
Net income	3,482,000	2,840,000
Net Loss Attributable to Non-Controlling Interest	27,000	29,000
Net Income Attributable to Ultralife Corporation	3,509,000	2,869,000
Other Comprehensive Loss:
Foreign Currency Translation Adjustments	(2,173,000)	(440,000)
Comprehensive Income Attributable to Ultralife Corporation	$ 1,336,000	$ 2,429,000
Net Income Per Share Attributable to Ultralife Corporation Common Shareholders – Basic: (in dollars per share)	$ 0.23	$ 0.18
Net Income Per Share Attributable to Ultralife Corporation Common Shareholders – Diluted: (in dollars per share)	$ 0.23	$ 0.17
Weighted Average Shares Outstanding – Basic (in shares)	15,261	16,182
Weighted Average Shares Outstanding – Diluted (in shares)	15,405	16,458

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2014	18,941,544
Balance at Dec. 31, 2014	$ 1,894	$ 175,940	$ (467)	$ (96,920)	$ (8,420)	$ (114)	$ 71,913
Purchases of Stock					(9,388)		(9,388)
Vesting of Restricted Shares (in shares)	102,334
Vesting of Restricted Shares	$ 10	(28)					$ (18)
Stock Option Exercises (in shares)	137,937						137,937
Stock Option Exercises	$ 14	524					$ 538
Stock-Based Compensation - Stock Options		489					489
Stock-Based Compensation - Restricted Stock		82					82
Foreign Currency Translation Adjustments			(440)				(440)
Net Income				2,869		(29)	$ 2,840
Balance (in shares) at Dec. 31, 2015	19,181,815						19,181,815
Balance at Dec. 31, 2015	$ 1,918	177,007	(907)	(94,051)	(17,808)	(143)	$ 66,016
Purchases of Stock					(635)		$ (635)
Vesting of Restricted Shares (in shares)	15,900
Vesting of Restricted Shares	$ 2	(2)
Stock Option Exercises (in shares)	127,008						152,789
Stock Option Exercises	$ 12	448					$ 460
Stock-Based Compensation - Stock Options		676					676
Stock-Based Compensation - Restricted Stock		34					34
Foreign Currency Translation Adjustments			(2,173)				(2,173)
Net Income				3,509		(27)	$ 3,482
Balance (in shares) at Dec. 31, 2016	19,324,723						19,324,723
Balance at Dec. 31, 2016	$ 1,932	$ 178,163	$ (3,080)	$ (90,542)	$ (18,443)	$ (170)	$ 67,860

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
OPERATING ACTIVITIES:
Net Income	$ 3,482,000	$ 2,840,000
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation	2,223,000	2,401,000
Amortization of Intangible Assets	503,000	235,000
Amortization of Financing Fees	71,000	71,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	0	150,000
Stock-Based Compensation	710,000	571,000
Loss on Long-Lived Asset Disposals	29,000	114,000
Deferred Income Tax Expense	135,000	183,000
Provision for allowance for doubtful accounts	(24,000)	(22,000)
Changes in operating assets and liabilities:
Accounts Receivable	(667,000)	(217,000)
Inventories	1,981,000	2,101,000
Prepaid Expenses and Other Assets	730,000	(757,000)
Income taxes receivable and payable	(158,000)	158,000
Accounts Payable and Other Liabilities	(1,362,000)	723,000
Net Cash Provided by Operating Activities	7,653,000	8,551,000
INVESTING ACTIVITIES:
Acquisition of Accutronics, Net of Cash Acquired	(9,857,000)	0
Cash Paid for Property, Equipment and Improvements	(1,219,000)	(2,910,000)
Change in Restricted Cash	65,000	0
Net Cash Used in Investing Activities	(11,011,000)	(2,910,000)
FINANCING ACTIVITIES:
Cash Paid to Repurchase Treasury Stock	(607,000)	(9,388,000)
Proceeds from Debt Borrowings	3,030,000
Payments of Debt Borrowings	(3,030,000)
Proceeds from Exercise of Stock Options	460,000	538,000
Tax Withholdings on Stock-Based Awards	(28,000)	(18,000)
Net Cash Used in Financing Activities	(175,000)	(8,868,000)
Effect of Exchange Rate Changes on Cash	(231,000)	(91,000)
DECREASE IN CASH	(3,764,000)	(3,318,000)
Cash, Beginning of Year	14,393,000	17,711,000
Cash, End of Year	10,629,000	14,393,000
Supplemental Cash Flow Information:
Construction in Process in Accounts Payable	83,000
Income Taxes Paid	273,000	52,000
Interest Paid	$ 179,000	$ 150,000

Note 1 - Summary of Operations

Note 1 - Summary of Operations and Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Business Description and Accounting Policies [Text Block]	Note 1 a. Description of Business As used in this annual report, unless otherwise indicated, the terms “we”, “our” and “us” refer to Ultralife Corporation (“Ultralife”) and includes our wholly-owned subsidiaries, ABLE New Energy Co., Limited and its wholly-owned subsidiary ABLE New Energy Co.; Ltd; Ultralife UK LTD and its wholly-owned subsidiary, Accutronics Ltd; Ultralife Batteries (UK) Ltd.; and our majority-owned joint venture Ultralife Batteries India Private Limited. We offer products and services ranging from power solutions to communications and electronics systems. Through our engineering and collaborative approach to problem solving, we serve government, defense and commercial customers across the globe. We design, manufacture, install and maintain power and communications systems including: rechargeable and non-rechargeable batteries, charging systems, communications and electronics systems and accessories, and custom engineered systems. We sell our products worldwide through a variety of trade channels, including original equipment manufacturers (“OEMs”), industrial and defense supply distributors, and directly to U.S. and international defense departments. 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 LTD, and its wholly-owned subsidiary Accutronics Ltd, ABLE New Energy Co., Limited, and its wholly-owned subsidiary ABLE New Energy Co., Ltd. (“ABLE” collectively), and our majority-owned subsidiary Ultralife Batteries India Private Limited (“India JV”). Intercompany accounts and transactions have been eliminated in consolidation. 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) valuation of assets acquired and liabilities assumed in business combinations; (d) various expense accruals; and (e) stock-based compensation. Our actual results could differ from these estimates. d. Reclassifications Certain items previously reported in specific financial statement captions are reclassified to conform to the current presentation. There were no material reclassifications for the years ended December 31, 2016 2015. e. Cash Our cash balances may f. Accounts Receivable and Allowance for Doubtful Accounts $277 $300 December 31, 2016 2015, g. Inventories Inventories are stated at the lower of cost or market with cost determined under the first first h. Property, Plant and Equipment Property, plant and equipment are stated at cost. Depreciation and amortization are computed using the straight-line method over the estimated useful lives. Estimated useful lives are as follows: Buildings 10 – 20 Machinery and Equipment 5 – 10 Furniture and Fixtures 3 – 10 Computer Hardware and Software 3 – 5 Leasehold Improvements Lesser of useful life or lease term 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. i. Long-Lived Assets, Goodwill and Intangibles We assess all of our long-lived assets for impairment when events or circumstances indicate that their carrying amounts may not December 31, 2016 2015. We do not amortize goodwill and intangible assets with indefinite lives, but instead measure these assets for impairment as of December 31, may The impairment analysis of goodwill consists first may 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 No December 31, 2016. 2016, December 31, 2015. $150. Future amortization expense of amortizable intangible assets will be approximately $405, $373, $352, $340 $321 December 31, 2017 2021, j. Translation of Foreign Currency The financial statements of our foreign subsidiaries are translated from the functional currency into U.S. dollar equivalents, with translation adjustments recorded as the sole component of accumulated other comprehensive loss on the balance sheets. Exchange gains and (losses) relate to foreign currency transactions and balances denominated in currencies other than the functional currency included in net income for the years ended December 31, 2016 2015 $86 $48, k . Revenue Recognition Deferred Revenue – 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 Income and Comprehensive Income. Such expenses amounted to $32 $59 December 31, 2016 2015, 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 2016 2015, $6,155 $6,112, $209 $509, $209 $509 2016 2015, 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, 2016, 2016. December 31, 2015. r. Concentration Related to Customers and Suppliers During the year ended December 31, 2016, two 25% December 31, 2015, one 23% 10% 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 2016 2015, 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 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 Level 1: Quoted prices in active markets for identical assets or liabilities. Level 2: Observable inputs, other than Level 1 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, 2016 2015. t. Earnings Per Share Basic earnings per share is computed by dividing net income or loss attributable to Ultralife Corporation 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 2016 1,238,804 135,458 15,900 9,538 2015 1,312,282 260,318 32,800 15,385 Diluted earnings per share calculations exclude the effect of approximately 1,332,281 945,687 2016 2015, u. Stock-Based Compensation We have various stock-based employee compensation plans that are described more fully in Note 8. v. Segment Reporting We have two w. Recent Accounting Pronouncements In May 2014, 2014 09 606) 606 December 15, 2017, 606 In July 2015, 2015 11, December 15, 2016, In November 2015, 2015 17, December 15, 2016, may first 2017. In February 2016, 2016 02, December 15, 2018 may In March 2016, 2016 09, 718)” December 15, 2016, January 1, 2017. In October 2016, 2016 16, 740), December 15, 2017, January 1, 2018 In August 2016, 2016 15, 230), eight December 15, 2017, January 1, 2018

Note 2 - Acquisition

Note 2 - Acquisition	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Mergers, Acquisitions and Dispositions Disclosures [Text Block]	Note 2 – Acquisition On January 13, 2016, The acquisition was completed pursuant to the terms of the Share Purchase Agreement dated January 13, 2016 £7,575 ($10,976) The purchase price was subject to adjustment based on the difference between actual and estimated amounts of working capital of Accutronics as well as the amount of net cash of Accutronics. The adjustment resulted in a final payment to the Sellers in the amount of £133 February 24, 2016, £7,708 ($11,161). The purchase price allocation was determined in accordance with the accounting treatment of a business combination in Financial Accounting Standards Board (“FASB”) ASC Topic 805, Business Combinations The allocation of purchase price to the assets acquired and liabilities assumed at the date of the acquisition is presented in the table below (in thousands). Management is responsible for determining the fair value of the tangible and intangible assets acquired and liabilities assumed as of the date of acquisition. Management considered a number of factors, including reference to an analysis performed under FASB ASC Topic 805 $402 $99, $291, $75, $113 $104, Cash $ 1,304 Accounts Receivable 1,344 Inventory 2,167 Prepaids and Other Current Assets 584 Property, Plant & Equipment 269 Identifiable Intangible Assets 4,374 Goodwill 4,487 Accounts Payable (1,009 ) Accrued Expenses (1,136 ) Income Taxes Payable (111 ) Non-Current Liabilities (209 ) Deferred Income Taxes (74 ) Deferred Income Taxes on Intangible Assets (829 ) Total Consideration $ 11,161 The goodwill included in the Company’s purchase price allocation presented above represents the value of Accutronics assembled and trained workforce, the incremental value that Accutronics engineering and technology will bring to the Company and the revenue growth expected to occur over time attributable to increased market penetration from future new products and customers. The goodwill acquired in connection with the acquisition is not deductible for income tax purposes. The identifiable intangible assets included in the Company’s purchase price allocation represent customer contracts and relationships of $2,821, $1,132 $421 10 15 During the year ended December 31, 2016, $251 $96 $10,362 $436 the twelve December, 2016, Set forth below is the unaudited pro forma results of the Company and Accutronics for the twelve December 31, 2015 January 1, 2015 twelve December 31, 2016 January 1, 2016 twelve Twelve-Months Ended Dec. 31, 2015 Dec. 31, 2016 Revenue $ 89,534 $ 82,460 Operating Income $ 3,858 $ 3,763 Net Income Attributable to Ultralife Corporation $ 3,258 $ 3,509 Earnings Per Share: Basic $ .20 $ .23 Diluted $ .20 $ .23 The unaudited pro forma results do not reflect the realization of any expected cost savings or other synergies from the acquisition of Accutronics as a result of restructuring activities, other cost savings initiatives or sales synergies following the completion of the business combination. Accordingly, these unaudited pro forma results are presented for informational purposes only and are not necessarily indicative of what the actual results of operations of the combined Company would have been if the acquisition had occurred at the beginning of the 2015

Note 3 - Share Repurchase Progr

Note 3 - Share Repurchase Program	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	Note 3 – Share Repurchase Program On April 28, 2014, May 1, 2014 1.8 twelve June 2, 2016, 3.4 Share repurchases under this program were made in accordance with SEC Rule 10b 18 10b5 1 June 2, 2016 In 2016, 156,092 $630, 149,904 $603. 2015, 2,258,929 $9,388, 2,225,437 $9,162. From the inception of the Share Repurchase Program on May 1, 2014 June 2, 2016, 2,592,095 $10,480.

Note 4 - Supplemental Balance S

Note 4 - Supplemental Balance Sheet Information	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Supplemental Balance Sheet Disclosures [Text Block]	Note 4 - Supplemental Balance Sheet Information a. Inventory , Net Inventories are stated at the lower of cost or market with cost determined under the first first December 31, 201 6 201 5 Raw Materials $ 14,482 $ 11,602 Work in Process 986 1,560 Finished Products 7,988 10,652 Total $ 23,456 $ 23,814 The December 31, 2016 $1,443 January 13, 2016. b. Property, Plant and Equipment Major classes of property, plant and equipment consisted of the following: December 31, 201 6 201 5 Land $ 123 $ 123 Buildings and Leasehold Improvements 7,757 7,490 Machinery and Equipment 49,722 49,609 Furniture and Fixtures 1,947 1,974 Computer Hardware and Software 5,223 4,585 Construction in Progress 421 745 65,193 64,526 Less – Accumulated Depreciation (57,194 ) (55,488 ) Total $ 7,999 $ 9,038 Estimated costs to complete construction-in-progress as of December 31, 2016 2015 $170 and $180, Depreciation expense was $2,223 $2,401 December 31, 2016 2015, c. Impairment of Goodwill, Intangible Assets and Long-Lived Assets We elected to forego the qualitative assessment for our four The fair value for our reporting units subjected to this quantitative test could not be determined using readily available quoted Level 1 2 3 2016 2015, Similarly, for our four The fair value for our indefinite-lived intangible assets subjected to this quantitative test could not be determined using readily available quoted Level 1 2 3 2016, no 2015, $150 one 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. d. Goodwill The following table summarizes the goodwill activity by segment for the years ended December 31, 2016 2015: Battery & Energy Products Communi- cations Systems Total Balance – January 1, 2015 $ 4,914 $ 11,493 $ 16,407 Effect of Foreign Currency Translation (124 ) - (124 ) Balance – December 31, 2015 4,790 11,493 16,283 Acquisition of Accutronics 4,487 - 4,487 Effect of Foreign Currency Translation (805 ) - (805 ) Balance – December 31, 2016 $ 8,472 $ 11,493 $ 19,965 e. Other Intangible Assets The composition of intangible assets was: December 31, 201 6 Cost Accumulated Amortization Net Trademarks $ 3,404 $ - $ 3,404 Customer Relationships 6,395 3,975 2,420 Patents and Technology 5,455 4,417 1,038 Distributor Relationships 377 368 9 Trade Name 359 36 323 Total Other Intangible Assets $ 15,990 $ 8,796 $ 7,194 December 31, 201 5 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 Amortization of intangible assets was included in the following financial statement captions: Year ended December 31, 201 6 201 5 Research and Development Expense $ 200 $ 130 Selling, General and Administrative Expense 303 105 Total $ 503 $ 235 Except for the impairment charge recorded against a Communications Systems trademark in 2015, January 13, 2016

Note 5 - Operating Leases

Note 5 - Operating Leases	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Leases of Lessee Disclosure [Text Block]	Note 5 - Operating Leases We lease various buildings, machinery, land, automobiles and office equipment. Rental expenses for all operating leases were approximately $668 $672 December 31, 2016 2015, December 31, 2016 201 7 201 8 201 9 20 20 202 1 $ 660 $ 558 $ 416 $ 100 $ -

Note 6 - Debt

Note 6 - Debt	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Debt Disclosure [Text Block]	Note 6 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”) that provides us a $20 $1 May 24, 2017. On April 30, 2014, 3, $6 $8 October 28, 2014, second On April 29, 2015, third April 30, 2016. June 15, 2015, fourth 3 June 2, 2016. January 13, 2016, fifth 2 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% 65% 85% $7.5 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 three 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% 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 1.00, four December 31, 2016 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 As of December 31, 2016, no 4.5%, $9,549 $10,629, no

Note 7 - Commitments and Contin

Note 7 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 7 - Commitments and Contingencies a. 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. b. Purchase Commitments As of December 31, 2016, $504 of production machinery and equipment. c. 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. d. 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 non-competition and non-solicitation provisions effective during the employment term and for varying periods thereafter depending on position and location. There can be no assurance that we will be able to enforce these agreements. All of our employees agree to abide by the terms of a Code of Ethics policy that provides for the confidentiality of certain information received during the course of their employment. e. 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, 2016 2015 201 6 201 5 Balance, January 1 $ 192 $ 376 Provision (reversal) for warranties issued 39 (90 ) Settlements made (59 ) (94 ) Balance, December 31 $ 172 $ 192 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, 787 one 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, C142. On May 4, 2015, 2013 $42,000 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, January 12, 2016, 7

Note 8 - Shareholders' Equity

Note 8 - Shareholders' Equity	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Shareholders' Equity and Share-based Payments [Text Block]	Note 8 - Shareholders' Equity a. Stock-Based Compensation Expense We recorded non-cash stock compensation expense in each period as follows: 2016 201 5 Stock Options $ 676 $ 489 Restricted Stock Grants 34 82 Total $ 710 $ 571 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, 2004 (“2004 750,000 2006, 2008, 2011, 2013, 2,900,000. In June 2014, 2014 (“2014 2004 June 10, 2014. 2014 1,750,000 2014 800,000 may 2014 may 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 seventh seventh December 31, 2016, 1,243,697 2004 679,884 2014 On December 30, 2010, 2004 50,000 $6.42, 12,500 four December 30, 2011; 250,000 $6.42, 62,500 four December 30, 2011; 200,000 $10.00, $10.00 15 30 50,000 four 200,000 $15.00, $15.00 15 30 50,000 four December 30, 2017. December 30, 2017 five December 30, 2020. December 31, 2016. 2004 June 7, 2011. On January 3, 2011, 50,000 $6.58 2004 12,500 four December 30, 2011. December 30, 2017. As of December 31, 2016, $505 1.1 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, 2016 2015: Years Ended December 31, 2016 2015 Risk-free interest rate 1.36 % 0.72 % Volatility factor 48.20 % 48.54 % Dividends 0.00 % 0.00 % Weighted average expected life (years) 4.83 4.15 Forfeiture rate 10.0 % 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 December 31, 2016 2015. We calculate expected volatility for stock options by taking an average of historical volatility over the expected term. The computation of expected term was determined based on historical experience of similar awards, giving consideration to the contractual terms of the stock-based awards and vesting schedules. The interest rate for periods within the contractual life of the award is based on the U.S. Treasury yield in effect at the time of grant. Forfeiture rates are calculated by dividing unvested shares forfeited by beginning shares outstanding. The pre-vesting forfeiture rate is calculated yearly and is determined using a historical twelve The following tables summarize data for the stock options issued by us: Year Ended December 31, 201 6 Number of Shares Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Shares under Option – January 1 2,257,969 $ 6.30 Options Granted 369,550 4.69 Options Exercised (152,789 ) 3.86 Options Forfeited or Expired (151,149 ) 6.09 Shares under option – December 31 2,323,581 $ 6.22 3.31 $ 1,101 Vested and Expected to Vest - December 31 2,192,138 $ 6.31 2.98 $ 1,006 Options Exercisable – December 31 1,302,390 $ 5.05 1.92 $ 669 Year Ended December 31, 201 5 Number of Shares Weighted Average Exercise Price Per Share 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 Options Exercisable – December 31 1,255,736 $ 5.22 The following table represents additional information about stock options outstanding at December 31, 2016: Option Outstanding Options Exercisable Range of Exercise Prices Number of Outstanding Options – December 31, 2016 Weighted- Average Remaining Contractual Life Weighted- Average Exercise Price Number of Options Exercisable at December 31, 2016 Weighted- Average Exercise Price $3.22 - $3.99 608,200 3.68 $ 3.76 394,218 $ 3.75 $4.00 - $4.99 686,548 3.62 $ 4.40 396,006 4.45 $5.00 - $9.99 628,833 2.17 $ 6.58 512,166 6.52 $10.00 - $15.00 400,000 4.00 $ 12.50 - - $3.22 - $15.00 2,323,581 3.31 $ 6.22 1,302,390 $ 5.05 The weighted average fair value of options granted during the years ended December 31, 2016 2015 $2.01 $2.32, December 31, 2016 2015 $149 $364, Cash received from option exercises under our stock-based compensation plans for the years ended December 31, 2016 2015 $460 $538, no December 31, 2016 2015. c. Restricted Stock Awards During 2014, 49,200 2014 three $3.24 $34 $82 2016 2015, September 2016, 15,900 4,131 At December 31, 2016, $11 d. Reserved Shares We have reserved 901,700 December 31, 2016.

Note 9 - Income Taxes

Note 9 - Income Taxes	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 9 - Income Taxes Our income tax provision consists of: Years Ended December 31, 201 6 201 5 Current: Federal $ (70 ) $ 4 State 20 15 Foreign 13 111 (37 ) 130 Deferred: Federal 220 169 State - - Foreign (85 ) 11 135 180 Total income tax provision $ 98 $ 310 The deferred income tax provision is primarily due to the recognition of deferred tax liabilities relating to goodwill and certain intangible assets that cannot be predicted to reverse for book purposes during our loss carry-forward periods offset by the deferred tax benefit of the amortization of certain intangible assets of Accutronics (U.K.). The current income tax provision is primarily due to the income reported for Accutronics (U.K.) while the remaining expense is primarily due to state taxes. The benefit associated with the current income tax provision is primarily related to an excess accrual of income taxes in prior years. In 2015, $51 $150 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, 201 6 201 5 Deferred Tax Liabilities: Property, Plant and Equipment $ - $ - Intangible Assets 5,471 4,631 Total Deferred Tax Liabilities 5,471 4,631 Deferred Tax Assets: Property, Plant and Equipment 77 288 Net Operating Loss Carry-Forwards 27,127 27,283 Tax Credit Carry-Forwards 1,704 1,596 Intangible Assets 2,923 3,391 Accrued Expenses, Reserves and Other 1,527 2,127 Total Deferred Tax Assets 33,358 34,685 Valuation Allowance for Deferred Tax Assets (33,331 ) (34,593 ) Net Deferred Tax Assets 27 92 Net Deferred Tax Liabilities $ 5,444 $ 4,539 Net deferred tax liabilities are comprised of the following balance sheet amounts: Years Ended December 31, 201 6 201 5 Current Deferred Tax Assets $ 94 $ 92 Non-Current Deferred Tax Liabilities (5,538 ) (4,631 ) $ (5,444 ) $ (4,539 ) The valuation allowance for deferred tax assets decreased by $1,262 $6,642 December 31, 2016 2015, 2016 2016. 2015 $7,296 2015 2015, $654. In 2016 2015, 2016. 2016 2015, As of December 31, 2016, $70,976 $12,760, $1,704, $12,760, $70,976 2019, 2034. $3,223 At December 31, 2016, For financial reporting purposes, income (loss) from continuing operations before income taxes is as follows: Years Ended December 31, 201 6 201 5 United States $ 2,803 $ 2,582 Foreign 777 568 $ 3,580 $ 3,150 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, 201 6 201 5 Statutory Income Tax Rate 34.0 % 34.0 % (Increase) Decrease in Tax Provision Resulting From: Equity Compensation 9.6 2.2 Income Tax Credits (6.2 ) (4.5 ) Foreign Tax Rates (2.2 ) (2.2 ) Release of Unrecognized Tax Benefits - (231.6 ) Valuation Allowance (30 ) 210.9 Excess Accrual (5.2 ) - Other 2.7 1.0 Effective Income Tax Rate 2.7 % 9.8 % Accounting for Uncertainty in Income Taxes Our unrecognized tax benefits related to uncertain tax positions at December 31, 2014 2015 $21.4 The following table summarizes the activity related to our unrecognized tax benefits: Years Ended December 31, 201 6 201 5 Balance – beginning of year $ - $ 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 $ - $ - The total unrecognized tax benefit balances at January 1, 2015 $7,296 2015 $21.4 December 31, 2016. 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 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 2016 2001 2016 2009 2016

Note 10 - 401(k) Retirement Ben

Note 10 - 401(k) Retirement Benefit Plan	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Pension and Other Postretirement Benefits Disclosure [Text Block]	Note 10 - 401(k) We maintain a defined contribution 401(k) 401(k) may, January 2010, 50% first 4% 2% 2016 2015, $191 $201, 401(k)

Note 11 - Business Segment Info

Note 11 - Business Segment Information	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	Note 11 - Business Segment Information We report our results in two 9 2016 : Battery & Energy Products Communications Systems Corporate Total Revenue $ 64,753 $ 17,707 $ - $ 82,460 Segment Contribution 19,580 5,528 (21,345 ) 3,763 Interest Expense, Net (263 ) (263 ) Miscellaneous 80 80 Income Tax Provision (98 ) (98 ) Non-Controlling Interest 27 27 Net Income Attributable to Ultralife $ 3,509 Total Assets $ 39,691 $ 32,021 $ 13,032 $ 84,744 Capital Expenditures 852 158 367 1,377 Goodwill 8,472 11,493 19,965 Depreciation and Amortization of Intangible Assets 2,042 541 143 2,726 Stock-Based Compensation 403 110 197 710 2 015 : Battery & Energy Products Communi cations Systems 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 ) Non-Controlling Interest 29 29 Net Loss 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 of Intangible Assets 1,625 98 984 2,707 Intangible Asset Impairment 150 150 Stock-Based Compensation 46 3 522 571 U.S. and No n-U.S. Revenue Information 1 : 2016: Total Revenue United States Non-United States Battery & Energy Products $ 64,753 $ 29,587 $ 35,166 Communications Systems 17,707 15,507 2,200 Total $ 82,460 45,094 $ 37,366 55 % 45 % 2015 : Total Revenue United States Non-United States Battery & Energy Products $ 65,272 $ 37,106 $ 28,166 Communications Systems 11,155 9,635 1,520 Total $ 76,427 $ 46,741 $ 29,686 61 % 39 % 1 Sales classified to U.S. include shipments to U.S.-based prime contractors which in some cases may Long-lived assets (including goodwill and intangible assets) held outside the U.S., principally in the United Kingdom and China, were $11,652 and $4,748 December 31, 2016 2015, Commercial and Government/Defense Revenue Information: 2016 : Total Revenue Commercial Government/ Defense Battery & Energy Products $ 64,753 $ 40,886 $ 23,867 Communications Systems 17,707 - 17,707 Total $ 82,460 $ 40,886 $ 41,574 50 % 50 % 2015 : Total Revenue Commercial Government/ Defense Battery & Energy Products $ 65,272 $ 33,367 $ 31,905 Communications Systems 11,155 - 11,155 Total $ 76,427 $ 33,367 $ 43,060 44 % 56 %

Note 12 - Due From Insurance Co

Note 12 - Due From Insurance Company	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Business Insurance Recoveries [Text Block]	Note 1 2 – Due from Insurance Company In June 2011, The total amount of the loss pertaining to assets and the related expenses was approximately $1,589, June 2012 April 2013 $1,286 no June 26, 2016, $177, $126, September 6, 2016, $55 2016

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	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 LTD, and its wholly-owned subsidiary Accutronics Ltd, ABLE New Energy Co., Limited, and its wholly-owned subsidiary ABLE New Energy Co., Ltd. (“ABLE” collectively), and our majority-owned subsidiary Ultralife Batteries India Private Limited (“India JV”). Intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates, Policy [Policy Text Block]	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) valuation of assets acquired and liabilities assumed in business combinations; (d) various expense accruals; and (e) stock-based compensation. Our actual results could differ from these estimates.
Reclassification, Policy [Policy Text Block]	d. Reclassifications Certain items previously reported in specific financial statement captions are reclassified to conform to the current presentation. There were no material reclassifications for the years ended December 31, 2016 2015.
Cash and Cash Equivalents, Policy [Policy Text Block]	e. Cash Our cash balances may
Receivables, Policy [Policy Text Block]	f. Accounts Receivable and Allowance for Doubtful Accounts $277 $300 December 31, 2016 2015,
Inventory, Policy [Policy Text Block]	g. Inventories Inventories are stated at the lower of cost or market with cost determined under the first first
Property, Plant and Equipment, Policy [Policy Text Block]	h. Property, Plant and Equipment Property, plant and equipment are stated at cost. Depreciation and amortization are computed using the straight-line method over the estimated useful lives. Estimated useful lives are as follows: Buildings 10 – 20 Machinery and Equipment 5 – 10 Furniture and Fixtures 3 – 10 Computer Hardware and Software 3 – 5 Leasehold Improvements Lesser of useful life or lease term 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.
Goodwill and Intangible Assets, Policy [Policy Text Block]	i. Long-Lived Assets, Goodwill and Intangibles We assess all of our long-lived assets for impairment when events or circumstances indicate that their carrying amounts may December 31, 2016 2015. We do not amortize goodwill and intangible assets with indefinite lives, but instead measure these assets for impairment as of December 31, may The impairment analysis of goodwill consists first may 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 No impairments of long-lived intangible assets were recorded in the year ended December 31, 2016. 2016, December 31, 2015. $150. Future amortization expense of amortizable intangible assets will be approximately $405, $373, $352, $340 $321 December 31, 2017 2021,
Foreign Currency Transactions and Translations Policy [Policy Text Block]	j. Translation of Foreign Currency The financial statements of our foreign subsidiaries are translated from the functional currency into U.S. dollar equivalents, with translation adjustments recorded as the sole component of accumulated other comprehensive loss on the balance sheets. Exchange gains and (losses) relate to foreign currency transactions and balances denominated in currencies other than the functional currency included in net income for the years ended December 31, 2016 2015 $86 $48,
Revenue Recognition, Policy [Policy Text Block]	k . Revenue Recognition Deferred Revenue –
Guarantees, Indemnifications and Warranties Policies [Policy Text Block]	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.
Shipping and Handling Cost, Policy [Policy Text Block]	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.
Advertising Costs, Policy [Policy Text Block]	n. Advertising Expenses Advertising costs are expensed as incurred and are included in selling, general and administrative expenses in the accompanying Consolidated Statements of Income and Comprehensive Income. Such expenses amounted to $32 $59 December 31, 2016 2015,
Research and Development Expense, Policy [Policy Text Block]	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 2016 2015, $6,155 $6,112, $209 $509, $209 $509 2016 2015,
Environmental Cost, Expense Policy [Policy Text Block]	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.
Income Tax, Policy [Policy Text Block]	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, 2016, 2016. December 31, 2015.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	r. Concentration Related to Customers and Suppliers During the year ended December 31, 2016, two 25% December 31, 2015, one 23% 10% 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 2016 2015, 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
Fair Value Measurement, Policy [Policy Text Block]	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 Level 1: Quoted prices in active markets for identical assets or liabilities. Level 2: Observable inputs, other than Level 1 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, 2016 2015.
Earnings Per Share, Policy [Policy Text Block]	t. Earnings Per Share Basic earnings per share is computed by dividing net income or loss attributable to Ultralife Corporation 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 2016 1,238,804 135,458 15,900 9,538 2015 1,312,282 260,318 32,800 15,385 Diluted earnings per share calculations exclude the effect of approximately 1,332,281 945,687 2016 2015,
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	u. Stock-Based Compensation We have various stock-based employee compensation plans that are described more fully in Note 8.
Segment Reporting, Policy [Policy Text Block]	v. Segment Reporting We have two
New Accounting Pronouncements, Policy [Policy Text Block]	w. Recent Accounting Pronouncements In May 2014, 2014 09 606) 606 December 15, 2017, 606 In July 2015, 2015 11, December 15, 2016, In November 2015, 2015 17, December 15, 2016, may first 2017. In February 2016, 2016 02, December 15, 2018 may In March 2016, 2016 09, 718)” December 15, 2016, January 1, 2017. In October 2016, 2016 16, 740), December 15, 2017, January 1, 2018 In August 2016, 2016 15, 230), eight December 15, 2017, January 1, 2018

Note 1 - Summary of Operation20

Note 1 - Summary of Operations and Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Property, Plant and Equipment, Estimated Useful Life [Table Text Block]	Buildings 10 – 20 Machinery and Equipment 5 – 10 Furniture and Fixtures 3 – 10 Computer Hardware and Software 3 – 5 Leasehold Improvements Lesser of useful life or lease term

Note 2 - Acquisition (Tables)

Note 2 - Acquisition (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	Cash $ 1,304 Accounts Receivable 1,344 Inventory 2,167 Prepaids and Other Current Assets 584 Property, Plant & Equipment 269 Identifiable Intangible Assets 4,374 Goodwill 4,487 Accounts Payable (1,009 ) Accrued Expenses (1,136 ) Income Taxes Payable (111 ) Non-Current Liabilities (209 ) Deferred Income Taxes (74 ) Deferred Income Taxes on Intangible Assets (829 ) Total Consideration $ 11,161
Business Acquisition, Pro Forma Information [Table Text Block]	Twelve-Months Ended Dec. 31, 2015 Dec. 31, 2016 Revenue $ 89,534 $ 82,460 Operating Income $ 3,858 $ 3,763 Net Income Attributable to Ultralife Corporation $ 3,258 $ 3,509 Earnings Per Share: Basic $ .20 $ .23 Diluted $ .20 $ .23

Note 4 - Supplemental Balance22

Note 4 - Supplemental Balance Sheet Information (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Inventory, Current [Table Text Block]	December 31, 201 6 201 5 Raw Materials $ 14,482 $ 11,602 Work in Process 986 1,560 Finished Products 7,988 10,652 Total $ 23,456 $ 23,814
Property, Plant and Equipment [Table Text Block]	December 31, 201 6 201 5 Land $ 123 $ 123 Buildings and Leasehold Improvements 7,757 7,490 Machinery and Equipment 49,722 49,609 Furniture and Fixtures 1,947 1,974 Computer Hardware and Software 5,223 4,585 Construction in Progress 421 745 65,193 64,526 Less – Accumulated Depreciation (57,194 ) (55,488 ) Total $ 7,999 $ 9,038
Schedule of Goodwill [Table Text Block]	Battery & Energy Products Communi- cations Systems Total Balance – January 1, 2015 $ 4,914 $ 11,493 $ 16,407 Effect of Foreign Currency Translation (124 ) - (124 ) Balance – December 31, 2015 4,790 11,493 16,283 Acquisition of Accutronics 4,487 - 4,487 Effect of Foreign Currency Translation (805 ) - (805 ) Balance – December 31, 2016 $ 8,472 $ 11,493 $ 19,965
Schedule of Finite-Lived Intangible Assets [Table Text Block]	December 31, 201 6 Cost Accumulated Amortization Net Trademarks $ 3,404 $ - $ 3,404 Customer Relationships 6,395 3,975 2,420 Patents and Technology 5,455 4,417 1,038 Distributor Relationships 377 368 9 Trade Name 359 36 323 Total Other Intangible Assets $ 15,990 $ 8,796 $ 7,194 December 31, 201 5 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
Finite-lived Intangible Assets Amortization Expense [Table Text Block]	Year ended December 31, 201 6 201 5 Research and Development Expense $ 200 $ 130 Selling, General and Administrative Expense 303 105 Total $ 503 $ 235

Note 5 - Operating Leases (Tabl

Note 5 - Operating Leases (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	201 7 201 8 201 9 20 20 202 1 $ 660 $ 558 $ 416 $ 100 $ -

Note 6 - Debt (Tables)

Note 6 - Debt (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Interest Rate Margins on Outstanding Debt [Table Text Block]	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%

Note 7 - Commitments and Cont25

Note 7 - Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Product Warranty Liability [Table Text Block]	201 6 201 5 Balance, January 1 $ 192 $ 376 Provision (reversal) for warranties issued 39 (90 ) Settlements made (59 ) (94 ) Balance, December 31 $ 172 $ 192

Note 8 - Shareholders' Equity (

Note 8 - Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]	2016 201 5 Stock Options $ 676 $ 489 Restricted Stock Grants 34 82 Total $ 710 $ 571
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Years Ended December 31, 2016 2015 Risk-free interest rate 1.36 % 0.72 % Volatility factor 48.20 % 48.54 % Dividends 0.00 % 0.00 % Weighted average expected life (years) 4.83 4.15 Forfeiture rate 10.0 % 13.8 %
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	Year Ended December 31, 201 6 Number of Shares Weighted Average Exercise Price Per Share Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Shares under Option – January 1 2,257,969 $ 6.30 Options Granted 369,550 4.69 Options Exercised (152,789 ) 3.86 Options Forfeited or Expired (151,149 ) 6.09 Shares under option – December 31 2,323,581 $ 6.22 3.31 $ 1,101 Vested and Expected to Vest - December 31 2,192,138 $ 6.31 2.98 $ 1,006 Options Exercisable – December 31 1,302,390 $ 5.05 1.92 $ 669 Year Ended December 31, 201 5 Number of Shares Weighted Average Exercise Price Per Share 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 Options Exercisable – December 31 1,255,736 $ 5.22
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]	Option Outstanding Options Exercisable Range of Exercise Prices Number of Outstanding Options – December 31, 2016 Weighted- Average Remaining Contractual Life Weighted- Average Exercise Price Number of Options Exercisable at December 31, 2016 Weighted- Average Exercise Price $3.22 - $3.99 608,200 3.68 $ 3.76 394,218 $ 3.75 $4.00 - $4.99 686,548 3.62 $ 4.40 396,006 4.45 $5.00 - $9.99 628,833 2.17 $ 6.58 512,166 6.52 $10.00 - $15.00 400,000 4.00 $ 12.50 - - $3.22 - $15.00 2,323,581 3.31 $ 6.22 1,302,390 $ 5.05

Note 9 - Income Taxes (Tables)

Note 9 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Years Ended December 31, 201 6 201 5 Current: Federal $ (70 ) $ 4 State 20 15 Foreign 13 111 (37 ) 130 Deferred: Federal 220 169 State - - Foreign (85 ) 11 135 180 Total income tax provision $ 98 $ 310
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	Years Ended December 31, 201 6 201 5 Deferred Tax Liabilities: Property, Plant and Equipment $ - $ - Intangible Assets 5,471 4,631 Total Deferred Tax Liabilities 5,471 4,631 Deferred Tax Assets: Property, Plant and Equipment 77 288 Net Operating Loss Carry-Forwards 27,127 27,283 Tax Credit Carry-Forwards 1,704 1,596 Intangible Assets 2,923 3,391 Accrued Expenses, Reserves and Other 1,527 2,127 Total Deferred Tax Assets 33,358 34,685 Valuation Allowance for Deferred Tax Assets (33,331 ) (34,593 ) Net Deferred Tax Assets 27 92 Net Deferred Tax Liabilities $ 5,444 $ 4,539
Schedule of Net Deferred Tax Liabilities [Table Text Block]	Years Ended December 31, 201 6 201 5 Current Deferred Tax Assets $ 94 $ 92 Non-Current Deferred Tax Liabilities (5,538 ) (4,631 ) $ (5,444 ) $ (4,539 )
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]	Years Ended December 31, 201 6 201 5 United States $ 2,803 $ 2,582 Foreign 777 568 $ 3,580 $ 3,150
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Years Ended December 31, 201 6 201 5 Statutory Income Tax Rate 34.0 % 34.0 % (Increase) Decrease in Tax Provision Resulting From: Equity Compensation 9.6 2.2 Income Tax Credits (6.2 ) (4.5 ) Foreign Tax Rates (2.2 ) (2.2 ) Release of Unrecognized Tax Benefits - (231.6 ) Valuation Allowance (30 ) 210.9 Excess Accrual (5.2 ) - Other 2.7 1.0 Effective Income Tax Rate 2.7 % 9.8 %
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	Years Ended December 31, 201 6 201 5 Balance – beginning of year $ - $ 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 $ - $ -

Note 11 - Business Segment In28

Note 11 - Business Segment Information (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Battery & Energy Products Communications Systems Corporate Total Revenue $ 64,753 $ 17,707 $ - $ 82,460 Segment Contribution 19,580 5,528 (21,345 ) 3,763 Interest Expense, Net (263 ) (263 ) Miscellaneous 80 80 Income Tax Provision (98 ) (98 ) Non-Controlling Interest 27 27 Net Income Attributable to Ultralife $ 3,509 Total Assets $ 39,691 $ 32,021 $ 13,032 $ 84,744 Capital Expenditures 852 158 367 1,377 Goodwill 8,472 11,493 19,965 Depreciation and Amortization of Intangible Assets 2,042 541 143 2,726 Stock-Based Compensation 403 110 197 710 Battery & Energy Products Communi cations Systems 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 ) Non-Controlling Interest 29 29 Net Loss 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 of Intangible Assets 1,625 98 984 2,707 Intangible Asset Impairment 150 150 Stock-Based Compensation 46 3 522 571
Revenue from External Customers by Geographic Areas [Table Text Block]	2016: Total Revenue United States Non-United States Battery & Energy Products $ 64,753 $ 29,587 $ 35,166 Communications Systems 17,707 15,507 2,200 Total $ 82,460 45,094 $ 37,366 55 % 45 % 2015 : Total Revenue United States Non-United States Battery & Energy Products $ 65,272 $ 37,106 $ 28,166 Communications Systems 11,155 9,635 1,520 Total $ 76,427 $ 46,741 $ 29,686 61 % 39 %
Schedule of Revenues from External Customers by Business Segment Sector [Table Text Block]	2016 : Total Revenue Commercial Government/ Defense Battery & Energy Products $ 64,753 $ 40,886 $ 23,867 Communications Systems 17,707 - 17,707 Total $ 82,460 $ 40,886 $ 41,574 50 % 50 % 2015 : Total Revenue Commercial Government/ Defense Battery & Energy Products $ 65,272 $ 33,367 $ 31,905 Communications Systems 11,155 - 11,155 Total $ 76,427 $ 33,367 $ 43,060 44 % 56 %

Note 1 - Summary of Operation29

Note 1 - Summary of Operations and Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)shares	Dec. 31, 2015USD ($)shares
Allowance for Doubtful Accounts Receivable, Current	$ 277	$ 300
Goodwill and Intangible Asset Impairment	0	150
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	405
Finite-Lived Intangible Assets, Amortization Expense, Year Two	373
Finite-Lived Intangible Assets, Amortization Expense, Year Three	352
Finite-Lived Intangible Assets, Amortization Expense, Year Four	340
Finite-Lived Intangible Assets, Amortization Expense, Year Five	321
Foreign Currency Transaction Gain (Loss), before Tax	86	48
Advertising Expense	32	59
Research and Development Expense, Gross	6,155	6,112
Customer Funded Research and Development Expense Included in Cost of Goods Sold	209	509
Research and Development, Revenue	$ 209	$ 509
Number of Dilutive Stock Options Included in Diluted Earnings Per Share Calculation | shares	1,238,804	1,312,282
Number of Shares Due to Dilutive Stock Options Included in Diluted Earnings Per Share Calculation | shares	135,458	260,318
Number of Dilutive Restricted Stock Units Included in Diluted EarningsPerShareCalculation | shares	15,900	32,800
Number of Shares Due to Dilutive Restricted Stock Units Included in Diluted Earnings Per Share Calculation | shares	9,538	15,385
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares	1,332,281	945,687
Number of Operating Segments	2
Asset Impairment Charges	$ 0	$ 0
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]
Number of Major Customers	2	1
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Large Defense Primary Contractors, 1 and 2 [Member]
Concentration Risk, Percentage	25.00%
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Large Defense Primary Contractor, 1 [Member]
Concentration Risk, Percentage		23.00%

Note 1 - Summary of Operation30

Note 1 - Summary of Operations and Significant Accounting Policies - Property, Plant and Equipment Estimated Useful Life (Details)	12 Months Ended
	Dec. 31, 2016
Building [Member] | Minimum [Member]
Estimated useful lives (Year)	10 years
Building [Member] | Maximum [Member]
Estimated useful lives (Year)	20 years
Machinery and Equipment [Member] | Minimum [Member]
Estimated useful lives (Year)	5 years
Machinery and Equipment [Member] | Maximum [Member]
Estimated useful lives (Year)	10 years
Furniture and Fixtures [Member] | Minimum [Member]
Estimated useful lives (Year)	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Estimated useful lives (Year)	10 years
Computer Equipment [Member] | Minimum [Member]
Estimated useful lives (Year)	3 years
Computer Equipment [Member] | Maximum [Member]
Estimated useful lives (Year)	5 years
Leasehold Improvements [Member]
Leasehold Improvements	Lesser of useful life or lease term

Note 2 - Acquisition (Details T

Note 2 - Acquisition (Details Textual) - Accutronics Limited [Member] £ in Thousands, $ in Thousands	Feb. 24, 2016USD ($)	Feb. 24, 2016GBP (£)	Jan. 13, 2016USD ($)	Jan. 13, 2016GBP (£)	Dec. 31, 2016USD ($)
Payments to Acquire Businesses, Gross			$ 10,976	£ 7,575
Payments to Acquire Businesses, Net of Cash Acquired Working Capital Adjustment | £		£ 133
Business Combination, Consideration Transferred	$ 11,161	£ 7,708
Business Combination, Adjustment, Intangible Assets	(402)
Business Combination, Adjustment, Property, Plant, and Equipment	(99)
Business Combination, Adjustment, Prepaids and Other Current Assets	291
Business Combination, Adjustment, Inventory	75
Business Combination, Adjustment, Deferred Income Taxes on Intangible Assets	113
Business Combination, Adjustment, Goodwill	$ 104
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			$ 4,374
Business Combination, Acquisition Related Costs					$ 251
Inventory Adjustments					96
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual					10,362
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual					$ 436
Minimum [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years	10 years
Maximum [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years	15 years
Customer Contracts and Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 2,821
Intellectual Property [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	1,132
Trade Names [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 421

Note 2 - Acquisition - Schedule

Note 2 - Acquisition - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jan. 13, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill	$ 19,965		$ 16,283	$ 16,407
Accutronics Limited [Member]
Cash		$ 1,304
Accounts Receivable		1,344
Inventory		2,167
Prepaids and Other Current Assets		584
Property, Plant & Equipment		269
Identifiable Intangible Assets		4,374
Goodwill		4,487
Accounts Payable		(1,009)
Accrued Expenses		(1,136)
Income Taxes Payable		(111)
Non-Current Liabilities		(209)
Deferred Income Taxes		(74)
Deferred Income Taxes on Intangible Assets		(829)
Total Consideration		$ 11,161

Note 2 - Acquisition - Unaudite

Note 2 - Acquisition - Unaudited Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revenue	$ 82,460	$ 89,534
Operating Income	3,763	3,858
Net Income Attributable to Ultralife Corporation	$ 3,509	$ 3,258
Basic (in dollars per share)	$ 0.23	$ 0.20
Diluted (in dollars per share)	$ 0.23	$ 0.20

Note 3 - Share Repurchase Pro34

Note 3 - Share Repurchase Program (Details Textual) - USD ($) $ in Thousands	12 Months Ended		25 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jun. 02, 2016	May 01, 2014
Treasury Stock, Shares, Acquired	156,092	2,258,929	2,592,095
Treasury Stock, Value, Acquired, Cost Method	$ 635	$ 9,388	$ 10,480
Share Repurchase Program [Member]
Treasury Stock, Shares, Acquired	149,904	2,225,437
Treasury Stock, Value, Acquired, Cost Method	$ 603	$ 9,162
Maximum [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			3,400,000	1,800,000

Note 4 - Supplemental Balance35

Note 4 - Supplemental Balance Sheet Information (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Inventory, Net	$ 23,456,000	$ 23,814,000
Construction in Progress, Gross	170,000	180,000
Depreciation	2,223,000	2,401,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	0	$ 150,000
Accutronics Limited [Member]
Inventory, Net	$ 1,443

Note 4 - Supplemental Balance36

Note 4 - Supplemental Balance Sheet Information - Components of Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Raw Materials	$ 14,482	$ 11,602
Work in Process	986	1,560
Finished Products	7,988	10,652
Total	$ 23,456	$ 23,814

Note 4 - Supplemental Balance37

Note 4 - Supplemental Balance Sheet Information - Components of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, plant and equipment, gross	$ 65,193	$ 64,526
Less – Accumulated Depreciation	(57,194)	(55,488)
Total	7,999	9,038
Land [Member]
Property, plant and equipment, gross	123	123
Building and Building Improvements [Member]
Property, plant and equipment, gross	7,757	7,490
Machinery and Equipment [Member]
Property, plant and equipment, gross	49,722	49,609
Furniture and Fixtures [Member]
Property, plant and equipment, gross	1,947	1,974
Computer Equipment [Member]
Property, plant and equipment, gross	5,223	4,585
Construction in Progress [Member]
Property, plant and equipment, gross	$ 421	$ 745

Note 4 - Supplemental Balance38

Note 4 - Supplemental Balance Sheet Information - Summary of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill balance	$ 16,283	$ 16,407
Effect of Foreign Currency Translation	(805)	(124)
Goodwill balance	19,965	16,283
Accutronics Limited [Member]
Acquisition of Accutronics	4,487
Battery & Energy Products Segment [Member]
Goodwill balance	4,790	4,914
Effect of Foreign Currency Translation	(805)	(124)
Goodwill balance	8,472	4,790
Battery & Energy Products Segment [Member] | Accutronics Limited [Member]
Acquisition of Accutronics	4,487
Communications Systems Segment [Member]
Goodwill balance	11,493	11,493
Effect of Foreign Currency Translation
Goodwill balance	11,493	$ 11,493
Communications Systems Segment [Member] | Accutronics Limited [Member]
Acquisition of Accutronics

Note 4 - Supplemental Balance39

Note 4 - Supplemental Balance Sheet - Composition of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Cost	$ 15,990	$ 12,234
Accumulated Amortization	8,796	8,288
Net	7,194	3,946
Trademarks [Member]
Cost	3,404	3,411
Accumulated Amortization	0
Net	3,404	3,411
Customer Relationships [Member]
Cost	6,395	3,971
Accumulated Amortization	3,975	3,716
Net	2,420	255
Patented Technology [Member]
Cost	5,455	4,482
Accumulated Amortization	4,417	4,217
Net	1,038	265
Distributor Relationships [Member]
Cost	377	370
Accumulated Amortization	368	355
Net	9	$ 15
Trade Names [Member]
Cost	359
Accumulated Amortization	36
Net	$ 323

Note 4 - Supplemental Balance40

Note 4 - Supplemental Balance Sheet Information - Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Amortization of Intangible Assets	$ 503	$ 235
Research and Development Expense [Member]
Amortization of Intangible Assets	200	130
Selling, General and Administrative Expenses [Member]
Amortization of Intangible Assets	$ 303	$ 105

Note 5 - Operating Leases (Deta

Note 5 - Operating Leases (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Operating Leases, Rent Expense, Net	$ 668	$ 672

Note 5 - Operating Leases - Fut

Note 5 - Operating Leases - Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2016USD ($)
2,017	$ 660
2,018	558
2,019	416
2,020	100
2,021

Note 6 - Debt (Details Textual)

Note 6 - Debt (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Apr. 30, 2014
Line of Credit Facility, Maximum Borrowing Capacity	$ 20,000
Line of Credit Facility, Remaining Borrowing Capacity	9,549
Cash	$ 10,629	$ 14,393	$ 17,711
Line of Credit, Maximum Borrowing Capacity, Percentage of Eligible Accounts Receivable	85.00%
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 in Addition to Accounts Receivable	$ 7,500
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.375%
Minimum Fixed Charge Coverage Ratio	1.15
Long-term Line of Credit	$ 0
Line of Credit Facility, Interest Rate at Period End	4.50%
Letters of Credit Outstanding, Amount	$ 0
Minimum [Member]
Line of Credit Facility, Remaining Borrowing Capacity				$ 6,000
Cash				$ 8,000
Letter of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,000

Note 6 - Debt - Interest Rate M

Note 6 - Debt - Interest Rate Margins (Details)	12 Months Ended
	Dec. 31, 2016
Greater than $8 Million [Member] | Base Rate [Member]
Interest Rate Margin on Outstanding Borrowings	1.00%
Greater than $8 Million [Member] | London Interbank Offered Rate (LIBOR) [Member]
Interest Rate Margin on Outstanding Borrowings	2.00%
$5 to $8 Million [Member] | Base Rate [Member]
Interest Rate Margin on Outstanding Borrowings	1.25%
$5 to $8 Million [Member] | London Interbank Offered Rate (LIBOR) [Member]
Interest Rate Margin on Outstanding Borrowings	2.25%
Less than $5 Million [Member] | Base Rate [Member]
Interest Rate Margin on Outstanding Borrowings	1.50%
Less than $5 Million [Member] | London Interbank Offered Rate (LIBOR) [Member]
Interest Rate Margin on Outstanding Borrowings	2.50%

Note 7 - Commitments and Cont45

Note 7 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	May 04, 2015	Dec. 31, 2016
Loss Contingency, Damages Sought, Value	$ 42,000
Capital Addition Purchase Commitments [Member]
Long-term Purchase Commitment, Amount		$ 504

Note 7 - Commitments and Cont46

Note 7 - Commitments and Contingencies - Changes in Produce Warranty Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Accrued Warranty Obligation, Beginning	$ 192	$ 376
Provision (reversal) for warranties issued	39	(90)
Settlements made	(59)	(94)
Accrued Warranty Obligation, Ending	$ 172	$ 192

Note 8 - Shareholders' Equity47

Note 8 - Shareholders' Equity (Details Textual) - USD ($)	Jan. 03, 2011	Dec. 30, 2010	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2004
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number				2,323,581	2,257,969	2,056,122
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross				369,550	411,250
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price				$ 4.69	$ 4.68
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options				$ 505,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition				1 year 36 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value				$ 2.01	$ 2.32
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value				$ 149,000	$ 364,000
Proceeds from Stock Options Exercised				460,000	538,000
Excess Tax Benefit from Share-based Compensation, Financing Activities				0	0
Allocated Share-based Compensation Expense				$ 710,000	$ 571,000
Common Stock, Capital Shares Reserved for Future Issuance				901,700
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				0	0
Allocated Share-based Compensation Expense				$ 34,000	$ 82,000
Restricted Stock [Member]
Allocated Share-based Compensation Expense				34,000	$ 82
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares			15,900
Stock Repurchased During Period, Shares			4,131
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options				$ 11,000
2004 Long-term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized				2,900,000			750,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number				1,243,697
2004 Long-term Incentive Plan [Member] | President [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	50,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 6.58
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Incremental Vesting Shares	12,500
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		5 years
2004 Long-term Incentive Plan [Member] | Options I [Member] | President [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		50,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price		$ 6.42
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Incremental Vesting Shares		12,500
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		4 years
2004 Long-term Incentive Plan [Member] | Options II [Member] | President [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		250,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price		$ 6.42
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Incremental Vesting Shares		62,500
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		4 years
2004 Long-term Incentive Plan [Member] | Options III [Member] | President [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		200,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price		$ 10
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Incremental Vesting Shares		50,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		4 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Minimum Closing Share Price		$ 10
2004 Long-term Incentive Plan [Member] | Options IV [Member] | President [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		200,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price		$ 15
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Incremental Vesting Shares		50,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		4 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Minimum Closing Share Price		$ 15
2014 Long-term Incentive Plan [Member]
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, Options, Outstanding, Number				679,884
2014 Long-term Incentive Plan [Member] | Awards Other than Stock Options and SARs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized				800,000
2014 Long-term Incentive Plan [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period						3 years
Stock Issued During Period, Shares, Restricted Stock Award, Gross						49,200
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value						$ 3.24

Note 8 - Shareholders' Equity -

Note 8 - Shareholders' Equity - Non-cash Stock Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Stock-based comepensation expense	$ 710	$ 571
Employee Stock Option [Member]
Stock-based comepensation expense	676	489
Performance Shares [Member]
Stock-based comepensation expense	$ 34	$ 82

Note 8 - Shareholders' Equity49

Note 8 - Shareholders' Equity - Stock Option Assumptions (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Risk-free interest rate	1.36%	0.72%
Volatility factor	48.20%	48.54%
Dividends	0.00%	0.00%
Weighted average expected life (years) (Year)	4 years 302 days	4 years 54 days
Forfeiture rate	10.00%	13.80%

Note 8 - Shareholders' Equity50

Note 8 - Shareholders' Equity - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Shares under Option, beginning of period (in shares)	2,257,969	2,056,122
Options outstanding - weighted average exercise price (in dollars per share)	$ 6.30	$ 6.66
Options Granted (in shares)	369,550	411,250
Options granted - weighted average exercise price (in dollars per share)	$ 4.69	$ 4.68
Options Exercised (in shares)	(152,789)	(137,937)
Options exercised - weighted average exercise price (in dollars per share)	$ 3.86	$ 3.90
Options Forfeited or Expired (in shares)	(151,149)	(71,466)
Options forfeited or expired - weighted average exercise price (in dollars per share)	$ 6.09	$ 11.86
Shares under option, end of period (in shares)	2,323,581	2,257,969
Options outstanding - weighted average exercise price (in dollars per share)	$ 6.22	$ 6.30
Options outstanding - weighted average remaining contractual term (Year)	3 years 113 days
Options outstanding - aggregate intrinsic value	$ 1,101
Vested and Expected to Vest (in shares)	2,192,138
Options vested and expected to vest - weighted average exercise price (in dollars per share)	$ 6.31
Options vested and expected to vest - weighted average remaining contractual term (Year)	2 years 357 days
Options vested and expected to vest - aggregate intrinsic value	$ 1,006
Options Exercisable (in shares)	1,302,390	1,255,736
Options Exercisable Weighted- Average Exercise Price (in dollars per share)	$ 5.05
Options exercisable - weighted average remaining contractual term (Year)	1 year 335 days
Options exercisable - aggregate intrinsic value	$ 669
Options exercised - weighted average exercise price (in dollars per share)	$ 3.86	$ 3.90
Options forfeited or expired - weighted average exercise price (in shares)	(151,149)	(71,466)
Options forfeited or expired - weighted average exercise price (in dollars per share)	$ 6.09	$ 11.86
Options exercisable (in shares)	1,302,390	1,255,736
Options exercisable (in dollars per share)		$ 5.22

Note 8 - Shareholders' Equity51

Note 8 - Shareholders' Equity - Options Range of Exercise Prices (Details)	12 Months Ended
	Dec. 31, 2016$ / sharesshares
Lower Range Limit (in dollars per share)	$ 3.22
Upper Range Limit (in dollars per share)	$ 15
Option Outstanding Number of Outstanding Options (in shares) | shares	2,323,581
Option Outstanding Weighted- Average Remaining Contractual Life (Year)	3 years 113 days
Option Outstanding Weighted- Average Exercise Price (in dollars per share)	$ 6.22
Options Exercisable Number of Options Exercisable (in shares) | shares	1,302,390
Options Exercisable Weighted- Average Exercise Price (in dollars per share)	$ 5.05
Range One [Member]
Lower Range Limit (in dollars per share)	3.22
Upper Range Limit (in dollars per share)	$ 3.99
Option Outstanding Number of Outstanding Options (in shares) | shares	608,200
Option Outstanding Weighted- Average Remaining Contractual Life (Year)	3 years 248 days
Option Outstanding Weighted- Average Exercise Price (in dollars per share)	$ 3.76
Options Exercisable Number of Options Exercisable (in shares) | shares	394,218
Options Exercisable Weighted- Average Exercise Price (in dollars per share)	$ 3.75
Range Two [Member]
Lower Range Limit (in dollars per share)	4
Upper Range Limit (in dollars per share)	$ 4.99
Option Outstanding Number of Outstanding Options (in shares) | shares	686,548
Option Outstanding Weighted- Average Remaining Contractual Life (Year)	3 years 226 days
Option Outstanding Weighted- Average Exercise Price (in dollars per share)	$ 4.40
Options Exercisable Number of Options Exercisable (in shares) | shares	396,006
Options Exercisable Weighted- Average Exercise Price (in dollars per share)	$ 4.45
Range Three [Member]
Lower Range Limit (in dollars per share)	5
Upper Range Limit (in dollars per share)	$ 9.99
Option Outstanding Number of Outstanding Options (in shares) | shares	628,833
Option Outstanding Weighted- Average Remaining Contractual Life (Year)	2 years 62 days
Option Outstanding Weighted- Average Exercise Price (in dollars per share)	$ 6.58
Options Exercisable Number of Options Exercisable (in shares) | shares	512,166
Options Exercisable Weighted- Average Exercise Price (in dollars per share)	$ 6.52
Range Four [Member]
Lower Range Limit (in dollars per share)	10
Upper Range Limit (in dollars per share)	$ 15
Option Outstanding Number of Outstanding Options (in shares) | shares	400,000
Option Outstanding Weighted- Average Remaining Contractual Life (Year)	4 years
Option Outstanding Weighted- Average Exercise Price (in dollars per share)	$ 12.50
Options Exercisable Number of Options Exercisable (in shares) | shares
Options Exercisable Weighted- Average Exercise Price (in dollars per share)

Note 9 - Income Taxes (Details

Note 9 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jan. 01, 2015	Dec. 31, 2014
Deferred Income Tax Expense (Benefit) Asset Impairment Charges		$ (51,000)
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 0	150,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	(1,262,000)	6,642,000
Valuation Allowance, Deferred Tax Assets, Change in Amount Due to Settlement of Uncertain Tax Position		7,296,000
Valuation Allowance, Deferred Tax Assets, Change in Amount, Other		654,000
Increase in Net Operating Loss Carry Forward, Resulting from Settlement of Uncertain Tax Position		21,400,000
Unrecognized Tax Benefits	0		$ 7,296,000	$ 7,296,000
Deferred Tax Assets, Valuation Allowance	33,331,000	34,593,000
Undistributed Earnings of Foreign Subsidiaries	0	0
Domestic Tax Authority [Member]
Operating Loss Carryforwards	70,976,000
Tax Credit Carryforward, Amount	$ 1,704,000
Domestic Tax Authority [Member] | Earliest Tax Year [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year	2,001
Domestic Tax Authority [Member] | Latest Tax Year [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year	2,016
Domestic Tax Authority [Member] | Capital Loss Carryforward [Member]
Operating Loss Carryforwards	$ 3,223,000
Foreign Tax Authority [Member]
Operating Loss Carryforwards	12,760,000
Deferred Tax Assets, Valuation Allowance	$ 0	0
Foreign Tax Authority [Member] | Earliest Tax Year [Member]
Open Tax Year	2,009
Foreign Tax Authority [Member] | Latest Tax Year [Member]
Open Tax Year	2,016
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Open Tax Year	2,001
State and Local Jurisdiction [Member] | Latest Tax Year [Member]
Open Tax Year	2,016
Trademarks [Member]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		$ 150,000

Note 9 - Income Taxes - Income

Note 9 - Income Taxes - Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Federal	$ (70)	$ 4
State	20	15
Foreign	13	111
Total current tax provision	(37)	130
Federal	220	169
State
Foreign	(85)	11
Total deferred tax provision (benefit)	135	180
Total income tax provision	$ 98	$ 310

Note 9 - Income Taxes - Deferre

Note 9 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Tax Liabilities:
Property, Plant and Equipment
Intangible Assets	5,471	4,631
Total Deferred Tax Liabilities	5,471	4,631
Deferred Tax Assets:
Property, Plant and Equipment	77	288
Net Operating Loss Carry-Forwards	27,127	27,283
Tax Credit Carry-Forwards	1,704	1,596
Intangible Assets	2,923	3,391
Accrued Expenses, Reserves and Other	1,527	2,127
Total Deferred Tax Assets	33,358	34,685
Valuation Allowance for Deferred Tax Assets	(33,331)	(34,593)
Net Deferred Tax Assets	27	92
Net Deferred Tax Liabilities	$ 5,444	$ 4,539

Note 9 - Income Taxes - Net Def

Note 9 - Income Taxes - Net Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current Deferred Tax Assets	$ 94	$ 92
Non-Current Deferred Tax Liabilities	(5,538)	(4,631)
Net Deferred Tax Liabilities	$ (5,444)	$ (4,539)

Note 9 - Income Taxes - United

Note 9 - Income Taxes - United States and Foreign Income (Loss) From Continuing Operations Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
United States	$ 2,803	$ 2,582
Foreign	777	568
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 3,580	$ 3,150

Note 9 - Income Taxes - Effecti

Note 9 - Income Taxes - Effective Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Statutory Income Tax Rate	34.00%	34.00%
Equity Compensation	9.60%	2.20%
Income Tax Credits	(6.20%)	(4.50%)
Foreign Tax Rates	(2.20%)	(2.20%)
Release of Unrecognized Tax Benefits		(231.60%)
Valuation Allowance	(30.00%)	210.90%
Excess Accrual	(5.20%)
Other	2.70%	1.00%
Effective Income Tax Rate	2.70%	9.80%

Note 9 - Income Taxes - Unrecog

Note 9 - Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Balance – beginning of year		$ 7,296,000
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		(7,296,000)
Balance – end of year	$ 0

Note 10 - 401(k) Retirement B59

Note 10 - 401(k) Retirement Benefit Plan (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	50.00%
Defined Contribution Plan, Maximum Employee Contribution Percentage, Subject to Employer Matching Contribution	4.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	2.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 191	$ 201

Note 11 - Business Segment In60

Note 11 - Business Segment Information (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Number of Operating Segments	2
Foreign [Member]
Long-Lived Assets	$ 11,652	$ 4,748

Note 11 - Business Segment In61

Note 11 - Business Segment Information - Segment Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue	$ 82,460,000	$ 76,427,000
Segment Contribution	3,763,000	3,330,000
Interest Expense, Net	(263,000)	(245,000)
Miscellaneous	80,000	65,000
Income Tax Provision	(98,000)	(310,000)
Non-Controlling Interest	27,000	29,000
Net Income Attributable to Ultralife	3,509,000	2,869,000
Total Assets	84,744,000	81,522,000
Capital Expenditures	1,377,000	1,890,000
Goodwill	19,965,000	16,283,000	$ 16,407,000
Depreciation and Amortization of Intangible Assets	2,726,000	2,707,000
Stock-Based Compensation	710,000	571,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	0	150,000
Battery & Energy Products Segment [Member]
Revenue	64,753,000	65,272,000
Segment Contribution	19,580,000	18,698,000
Interest Expense, Net
Miscellaneous
Income Tax Provision
Net Income Attributable to Ultralife
Total Assets	39,691,000	35,295,000
Capital Expenditures	852,000	355,000
Goodwill	8,472,000	4,790,000	4,914,000
Depreciation and Amortization of Intangible Assets	2,042,000	1,625,000
Stock-Based Compensation	403,000	46,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)
Communications Systems Segment [Member]
Revenue	17,707,000	11,155,000
Segment Contribution	5,528,000	4,618,000
Interest Expense, Net
Miscellaneous
Income Tax Provision
Net Income Attributable to Ultralife
Total Assets	32,021,000	28,849,000
Capital Expenditures	158,000	973,000
Goodwill	11,493,000	11,493,000	$ 11,493,000
Depreciation and Amortization of Intangible Assets	541,000	98,000
Stock-Based Compensation	110,000	3,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		150,000
Corporate Segment [Member]
Revenue
Segment Contribution	(21,345,000)	(19,986,000)
Interest Expense, Net	(263,000)	(245,000)
Miscellaneous	80,000	65,000
Income Tax Provision	(98,000)	(310,000)
Non-Controlling Interest	27,000	29,000
Net Income Attributable to Ultralife
Total Assets	13,032,000	17,378,000
Capital Expenditures	367,000	562,000
Goodwill
Depreciation and Amortization of Intangible Assets	143,000	984,000
Stock-Based Compensation	$ 197,000	522,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)

Note 11 - Business Segment In62

Note 11 - Business Segment Information - Domestic and International Revenue by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revenue	$ 82,460	$ 76,427
Revenue, percentage
UNITED STATES
Revenue	$ 45,094	$ 46,741
Revenue, percentage	55.00%	61.00%
Non-US [Member]
Revenue	$ 37,366	$ 29,686
Revenue, percentage	45.00%	39.00%
Battery & Energy Products Segment [Member]
Revenue	$ 64,753	$ 65,272
Battery & Energy Products Segment [Member] | UNITED STATES
Revenue	29,587	37,106
Battery & Energy Products Segment [Member] | Non-US [Member]
Revenue	35,166	28,166
Communications Systems Segment [Member]
Revenue	17,707	11,155
Communications Systems Segment [Member] | UNITED STATES
Revenue	15,507	9,635
Communications Systems Segment [Member] | Non-US [Member]
Revenue	$ 2,200	$ 1,520

Note 11 - Business Segment In63

Note 11 - Business Segment Information - Revenue by Business Segment Sector (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revenue	$ 82,460	$ 76,427
Revenue, percentage
Commercial [Member]
Revenue	$ 40,886	$ 33,367
Revenue, percentage	50.00%	44.00%
Government & Defense [Member]
Revenue	$ 41,574	$ 43,060
Revenue, percentage	50.00%	56.00%
Battery & Energy Products Segment [Member]
Revenue	$ 64,753	$ 65,272
Battery & Energy Products Segment [Member] | Commercial [Member]
Revenue	40,886	33,367
Battery & Energy Products Segment [Member] | Government & Defense [Member]
Revenue	23,867	31,905
Communications Systems Segment [Member]
Revenue	17,707	11,155
Communications Systems Segment [Member] | Commercial [Member]
Revenue
Communications Systems Segment [Member] | Government & Defense [Member]
Revenue	$ 17,707	$ 11,155

Note 12 - Due From Insurance 64

Note 12 - Due From Insurance Company (Details Textual) - USD ($) $ in Thousands	Sep. 06, 2016	Jun. 30, 2011	Apr. 30, 2013	Jun. 26, 2016
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				$ 126
Gain (Loss) Related to Litigation Settlement	$ (55)