Document And Entity Information
Note To Financial Statement Details Textual
statementsignificantaccountingpoliciespolicies
Amortization of Financing Fees
statementnote1summaryofoperationsandsignificantaccountingpoliciestables
Property, Plant and Equipment [Table Text Block]
statementnote2acquisitiontables
statementnote4supplementalbalancesheetinformationtables
statementnote5operatingleasestables
statementnote6debttables
Segment Reporting Disclosure [Text Block]
statementnote7commitmentsandcontingenciestables
Consolidation, Policy [Policy Text Block]
statementnote8shareholdersequitytables
statementnote9incometaxestables
statementnote11businesssegmentinformationtables
statementnote1summaryofoperationsandsignificantaccountingpoliciespropertyplantandequipmentestimatedusefullifedetails
statementnote2acquisitionscheduleofrecognizedidentifiedassetsacquiredandliabilitiesassumeddetails
statementnote2acquisitionunauditedproformainformationdetails
Schedule of Inventory, Current [Table Text Block]
statementnote4supplementalbalancesheetinformationcomponentsofinventorydetails
statementnote4supplementalbalancesheetinformationcomponentsofpropertyplantandequipmentdetails
statementnote4supplementalbalancesheetinformationsummaryofgoodwilldetails
Other Intangible Assets, Net
statementnote4supplementalbalancesheetcompositionofintangibleassetsdetails
statementnote4supplementalbalancesheetinformationamortizationofintangibleassetsdetails
statementnote5operatingleasesfutureminimumleasepaymentsdetails
statementnote6debtinterestratemarginsdetails
statementnote7commitmentsandcontingencieschangesinproducewarrantyliabilitydetails
statementnote8shareholdersequitynoncashstockcompensationexpensedetails
statementnote8shareholdersequitystockoptionassumptionsdetails
statementnote8shareholdersequitystockoptionactivitydetails
statementnote8shareholdersequityoptionsrangeofexercisepricesdetails
statementnote9incometaxesincometaxexpensedetails
Provision (reversal) for warranties issued
statementnote9incometaxesdeferredtaxassetsandliabilitiesdetails
us-gaap_ProductWarrantyAccrualPayments
Settlements made
statementnote9incometaxesnetdeferredtaxliabilitiesdetails
statementnote9incometaxesunitedstatesandforeignincomelossfromcontinuingoperationsbeforeincometaxesdetails
statementnote9incometaxeseffectiveratereconciliationdetails
us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
Finite-Lived Intangible Assets, Amortization Expense, Year Four
statementnote9incometaxesunrecognizedtaxbenefitsdetails
us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
Finite-Lived Intangible Assets, Amortization Expense, Year Five
statementnote11businesssegmentinformationsegmentactivitydetails
us-gaap_PolicyTextBlockAbstract
Accounting Policies
us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
Finite-Lived Intangible Assets, Amortization Expense, Year Two
Pension and Other Postretirement Benefits Disclosure [Text Block]
statementnote11businesssegmentinformationdomesticandinternationalrevenuebysegmentdetails
us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
Finite-Lived Intangible Assets, Amortization Expense, Year Three
statementnote11businesssegmentinformationrevenuebybusinesssegmentsectordetails
Notes To Financial Statements
us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months
Notes To Financial Statements [Abstract]
us-gaap_ConcentrationRiskPercentage1
Concentration Risk, Percentage
us-gaap_ComprehensiveIncomeNetOfTax
Comprehensive Income Attributable to Ultralife Corporation
Operating Expenses:
Sales Revenue, Net [Member]
us-gaap_TreasuryStockSharesAcquired
Treasury Stock, Shares, Acquired
Revenues
Revenue
Schedule of Product Warranty Liability [Table Text Block]
Interest Income
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Common stock, shares outstanding (in shares)
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Axis]
Cash
Cash
Cash, Beginning of Year
Cash, End of Year
Deferred Tax Assets:
us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount
us-gaap_DeferredTaxAssetsValuationAllowance
Deferred Tax Assets, Valuation Allowance
Valuation Allowance for Deferred Tax Assets
Stock-based comepensation expense
Allocated Share-based Compensation Expense
Income taxes receivable and payable
Accounts Payable and Other Liabilities
us-gaap_DeferredTaxAssetsNet
Net Deferred Tax Assets
Current Deferred Tax Assets
Deferred Income Taxes
us-gaap_IncreaseDecreaseInDeferredIncomeTaxes
Deferred Income Tax Expense
us-gaap_DeferredIncomeTaxLiabilities
Total Deferred Tax Liabilities
Prepaid Expenses and Other Current Assets
us-gaap_DeferredTaxAssetsGross
Total Deferred Tax Assets
us-gaap_IncreaseDecreaseInPrepaidExpense
Prepaid Expenses and Other Assets
Customer Concentration Risk [Member]
Stock-Based Compensation - Stock Options
Concentration Risk Type [Axis]
us-gaap_LettersOfCreditOutstandingAmount
Letters of Credit Outstanding, Amount
Concentration Risk Type [Domain]
us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets
Intangible Assets
us-gaap_TreasuryStockCarryingBasis
Treasury Stock - at Cost; 4,015,752 Shares and 3,859,660 Shares at December 31, 2016 and 2015, Respectively
us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment
Property, Plant and Equipment
us-gaap_TreasuryStockValueAcquiredCostMethod
Treasury Stock, Value, Acquired, Cost Method
Purchases of Stock
us-gaap_StockRepurchasedDuringPeriodShares
Stock Repurchased During Period, Shares
us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Accrued Expenses, Reserves and Other
us-gaap_IncreaseDecreaseInAccountsReceivable
Accounts Receivable
Vesting of Restricted Shares (in shares)
Vesting of Restricted Shares
Stock Option Exercises (in shares)
Options Exercised (in shares)
us-gaap_DeferredTaxAssetsTaxCreditCarryforwards
Tax Credit Carry-Forwards
Stock Option Exercises
us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
Stock Issued During Period, Shares, Restricted Stock Award, Gross
Fair Value Measurement, Policy [Policy Text Block]
us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Net Operating Loss Carry-Forwards
Segment Reporting, Policy [Policy Text Block]
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Base Rate [Member]
Earnings Per Share, Policy [Policy Text Block]
us-gaap_IncreaseDecreaseInInventories
Inventories
Options Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Income Tax, Policy [Policy Text Block]
us-gaap_DeferredTaxLiabilities
Net Deferred Tax Liabilities
Net Deferred Tax Liabilities
us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
Intangible Assets
Research and Development Expense, Policy [Policy Text Block]
us-gaap_LiabilitiesAndStockholdersEquity
Total Liabilities and Shareholders' Equity
us-gaap_UndistributedEarningsOfForeignSubsidiaries
Undistributed Earnings of Foreign Subsidiaries
Accumulated Deficit
Accumulated Other Comprehensive Loss
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Deferred Tax Liabilities:
us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Property, Plant and Equipment
Advertising Costs, Policy [Policy Text Block]
Shipping and Handling Cost, Policy [Policy Text Block]
us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Stock Repurchase Program, Number of Shares Authorized to be Repurchased
Share Repurchase Program [Axis]
Share Repurchase Program [Domain]
Changes in operating assets and liabilities:
us-gaap_CurrentStateAndLocalTaxExpenseBenefit
State
us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
State
us-gaap_CurrentForeignTaxExpenseBenefit
Foreign
us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Foreign
us-gaap_CurrentFederalTaxExpenseBenefit
Federal
us-gaap_DeferredFederalIncomeTaxExpenseBenefit
Federal
us-gaap_CurrentIncomeTaxExpenseBenefit
Total current tax provision
Excess Accrual
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the excess accrual.
us-gaap_DeferredIncomeTaxExpenseBenefit
Total deferred tax provision (benefit)
us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
Foreign Currency Transaction Gain (Loss), before Tax
Stock-Based Compensation
Stock-Based Compensation
Security Deposits and Other Non-Current Assets
Treasury stock, shares (in shares)
Revenue Recognition, Policy [Policy Text Block]
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
us-gaap_TableTextBlock
Notes Tables
Guarantees, Indemnifications and Warranties Policies [Policy Text Block]
Environmental Cost, Expense Policy [Policy Text Block]
Common stock, shares issued (in shares)
Balance (in shares)
Balance (in shares)
Common stock, shares authorized (in shares)
Amendment Flag
Depreciation
Depreciation
Common stock, par value (in dollars per share)
us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Common Stock, Capital Shares Reserved for Future Issuance
us-gaap_AssetsCurrent
Total Current Assets
us-gaap_InterestAndDebtExpense
Interest and Financing Expense
Internal Revenue Service (IRS) [Member]
Miscellaneous
Miscellaneous
Goodwill and Intangible Assets, Policy [Policy Text Block]
Income Tax Authority, Name [Axis]
Income Tax Authority, Name [Domain]
Foreign Tax Authority [Member]
State and Local Jurisdiction [Member]
Preferred Stock – Par Value $.10 Per Share; Authorized 1,000,000 Shares; None Issued
Income Tax Authority [Domain]
Current Fiscal Year End Date
Domestic Tax Authority [Member]
Leasehold Improvements
Income Tax Authority [Axis]
Preferred stock, shares issued (in shares)
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)
Document Fiscal Period Focus
Document Fiscal Year Focus
Preferred stock, par value (in dollars per share)
Document Period End Date
Document Type
us-gaap_OpenTaxYear
Open Tax Year
us-gaap_OperatingIncomeLoss
Segment Contribution
Operating Income
us-gaap_PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease
Capital Expenditures
Statement of Cash Flows [Abstract]
us-gaap_UnrecognizedTaxBenefits
Unrecognized Tax Benefits
Balance – beginning of year
Balance – end of year
us-gaap_GrossProfit
Gross Profit
Statement of Stockholders' Equity [Abstract]
Document Information [Line Items]
us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
Expiration of statute of limitations for assessment of taxes
Cost of Products Sold
Document Information [Table]
Interest Paid
us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
Settlements of examinations
Income Taxes Paid
Entity Public Float
Entity Filer Category
Estimated useful lives (Year)
Entity Current Reporting Status
us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
Decreases related to prior year tax positions
Entity Voluntary Filers
Increases related to current year tax positions
Entity Well-known Seasoned Issuer
Increases related to prior year tax positions
2020
2021
Construction in Progress [Member]
2018
2019
Latest Tax Year [Member]
Furniture and Fixtures [Member]
2017
Earliest Tax Year [Member]
Non-Controlling Interest
Inventories, Net
Inventory, Net
Total
Building and Building Improvements [Member]
Entity Central Index Key
Entity Registrant Name
Building [Member]
Work in Process
Entity [Domain]
Business Acquisition, Acquiree [Domain]
Tax Period [Axis]
Legal Entity [Axis]
Tax Period [Domain]
us-gaap_ProceedsFromInsuranceSettlementOperatingActivities
Proceeds from Insurance Settlement, Operating Activities
Leasehold Improvements [Member]
Finished Products
us-gaap_InventoryAdjustments
Inventory Adjustments
Business Acquisition [Axis]
Land [Member]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Policy [Policy Text Block]
Capital in Excess of Par Value
us-gaap_TaxCreditCarryforwardAmount
Tax Credit Carryforward, Amount
Shareholders' Equity:
Entity Common Stock, Shares Outstanding (in shares)
Inventory, Policy [Policy Text Block]
OPERATING ACTIVITIES:
Raw Materials
Tax Credit Carryforward, Name [Domain]
Statement [Line Items]
Tax Credit Carryforward [Axis]
us-gaap_OperatingLossCarryforwards
Operating Loss Carryforwards
Trading Symbol
AOCI Attributable to Parent [Member]
Trade Accounts Receivable, Net of Allowance for Doubtful Accounts of $277 and $300, Respectively
Effective Income Tax Rate
Trade accounts receivable, allowance for doubtful accounts
Allowance for Doubtful Accounts Receivable, Current
Other
Valuation Allowance
us-gaap_Liabilities
Total Liabilities
Commitments and Contingencies (Note 7)
Current Assets:
us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingenciesDomestic
Release of Unrecognized Tax Benefits
Concentration Risk, Credit Risk, Policy [Policy Text Block]
us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
Net Cash Used in Financing Activities
Income Taxes Payable
us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
Net Cash Provided by Operating Activities
us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
Net Cash Used in Investing Activities
Equity Compensation
us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
Excess Tax Benefit from Share-based Compensation, Financing Activities
us-gaap_GoodwillAndIntangibleAssetImpairment
Goodwill and Intangible Asset Impairment
us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation
Tax Withholdings on Stock-Based Awards
UNITED STATES
us-gaap_ProductWarrantyAccrual
Accrued Warranty Obligation, Beginning
Accrued Warranty Obligation, Ending
us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
Total Consideration
us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
Income Tax Credits
us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
Foreign Tax Rates
us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilities
Non-Current Liabilities
Statutory Income Tax Rate
us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent
Deferred Income Taxes
Noncontrolling Interest [Member]
us-gaap_LongTermPurchaseCommitmentAmount
Long-term Purchase Commitment, Amount
us-gaap_PaymentsForRepurchaseOfCommonStock
Cash Paid to Repurchase Treasury Stock
us-gaap_StockholdersEquity
Total Ultralife Corporation Equity
us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesCurrent
Income Taxes Payable
Long-term Purchase Commitment, Category of Item Purchased [Domain]
us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
Accounts Payable
Retained Earnings [Member]
Proceeds from Exercise of Stock Options
Proceeds from Stock Options Exercised
Treasury Stock [Member]
Category of Item Purchased [Axis]
Options Exercisable Number of Options Exercisable (in shares)
Options Exercisable Weighted- Average Exercise Price (in dollars per share)
Option Outstanding Weighted- Average Exercise Price (in dollars per share)
Option Outstanding Weighted- Average Remaining Contractual Life (Year)
Additional Paid-in Capital [Member]
Property, Plant & Equipment
Option Outstanding Number of Outstanding Options (in shares)
Upper Range Limit (in dollars per share)
Lower Range Limit (in dollars per share)
Common Stock [Member]
Exercise Price Range [Axis]
Equity Components [Axis]
Identifiable Intangible Assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain]
Equity Component [Domain]
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
Dividends
Accounts Receivable
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
Risk-free interest rate
Prepaids and Other Current Assets
Inventory
us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
Cash
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
Volatility factor
us-gaap_BusinessCombinationConsiderationTransferred1
Business Combination, Consideration Transferred
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
Weighted average expected life (years) (Year)
Foreign Currency Translation Adjustments
Other Comprehensive Loss:
us-gaap_LineOfCredit
Long-term Line of Credit
Payments of Debt Borrowings
Receivables, Policy [Policy Text Block]
Cash and Cash Equivalents, Policy [Policy Text Block]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Foreign
us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Total Shareholders’ Equity
Balance
Balance
United States
Income Tax Disclosure [Text Block]
us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic
Basic (in dollars per share)
Accounting Policies [Abstract]
us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted
Diluted (in dollars per share)
Options vested and expected to vest - weighted average remaining contractual term (Year)
Options vested and expected to vest - weighted average exercise price (in dollars per share)
Options exercisable - aggregate intrinsic value
Computer Equipment [Member]
Options vested and expected to vest - aggregate intrinsic value
Vested and Expected to Vest (in shares)
us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual
us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual
Machinery and Equipment [Member]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Options exercisable (in dollars per share)
us-gaap_BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax
Operating Income
Options exercisable - weighted average remaining contractual term (Year)
Net Income Attributable to Ultralife Corporation
Business Acquisition, Pro Forma Information [Table Text Block]
Options Exercisable (in shares)
Options exercisable (in shares)
us-gaap_BusinessAcquisitionsProFormaRevenue
Revenue
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
ulbi_BusinessCombinationAdjustmentIntangibleAssets
Business Combination, Adjustment, Intangible Assets
This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to intangibles acquired in connection with a business combination.
Options outstanding - aggregate intrinsic value
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
ulbi_BusinessCombinationAdjustmentPrepaidsAndOtherCurrentAssets
Business Combination, Adjustment, Prepaids and Other Current Assets
This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to prepaid and other current assets acquired in connection with a business combination.
ulbi_BusinessCombinationAdjustmentPropertyPlantAndEquipment
Business Combination, Adjustment, Property, Plant, and Equipment
This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to property, plant, and equipment acquired in connection with a business combination.
Selling, General and Administrative Expenses [Member]
Options outstanding - weighted average remaining contractual term (Year)
ulbi_BusinessCombinationAdjustmentDeferredIncomeTaxesOnIntangibleAssets
Business Combination, Adjustment, Deferred Income Taxes on Intangible Assets
This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to deferred income taxes on intangible assets in connection with a business combination.
ulbi_BusinessCombinationAdjustmentInventory
Business Combination, Adjustment, Inventory
This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to inventory acquired in connection with a business combination.
Customer Contracts and Relationships [Member]
Entity's established relationships with its customers through contracts and otherwise.
Credit Facility [Domain]
ulbi_BusinessCombinationAdjustmentGoodwill
Business Combination, Adjustment, Goodwill
This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to goodwill in connection with a business combination.
Credit Facility [Axis]
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Options outstanding - weighted average exercise price (in dollars per share)
Options outstanding - weighted average exercise price (in dollars per share)
us-gaap_InsuranceSettlementsReceivable
Insurance Settlements Receivable
Options forfeited or expired - weighted average exercise price (in dollars per share)
Options forfeited or expired - weighted average exercise price (in dollars per share)
Options granted - weighted average exercise price (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Options exercised - weighted average exercise price (in dollars per share)
Options exercised - weighted average exercise price (in dollars per share)
Income Statement Location [Domain]
Research and Development Expense [Member]
Income Statement Location [Axis]
Maximum [Member]
Minimum [Member]
Range [Axis]
Range [Domain]
Due from Insurance Company
Customer [Axis]
Customer [Domain]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Shares under Option, beginning of period (in shares)
Shares under option, end of period (in shares)
Trade Names [Member]
Trademarks [Member]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
Options Forfeited or Expired (in shares)
Options forfeited or expired - weighted average exercise price (in shares)
Schedule of Goodwill [Table Text Block]
Supplemental Balance Sheet Disclosures [Text Block]
us-gaap_OperatingLeasesRentExpenseNet
Operating Leases, Rent Expense, Net
Shareholders' Equity and Share-based Payments [Text Block]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Patented Technology [Member]
us-gaap_LossContingencyDamagesSoughtValue
Loss Contingency, Damages Sought, Value
Non-US [Member]
Mergers, Acquisitions and Dispositions Disclosures [Text Block]
Intellectual Property [Member]
Plan Name [Axis]
Plan Name [Domain]
us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
Customer Relationships [Member]
Weighted Average Shares Outstanding – Diluted (in shares)
Stock-Based Compensation - Restricted Stock
This element represents the amount of recognized equity-based compensation related to restricted stock options during the period.
Provision for allowance for doubtful accounts
Represents the provisions for doubtful accounts, net of recoveries.
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options
Award Type [Axis]
Geographical [Axis]
Equity Award [Domain]
Geographical [Domain]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Net Income Per Share Attributable to Ultralife Corporation Common Shareholders – Diluted: (in dollars per share)
Proceeds from Debt Borrowings
Weighted Average Shares Outstanding – Basic (in shares)
Scenario, Unspecified [Domain]
Scenario [Axis]
Net Income Per Share Attributable to Ultralife Corporation Common Shareholders – Basic: (in dollars per share)
Corporate Segment [Member]
Segments [Axis]
Segments [Domain]
ulbi_CustomerFundedResearchAndDevelopmentExpenseIncludedInCostOfGoodsSold
Customer Funded Research and Development Expense Included in Cost of Goods Sold
Represents the amount of R&D included in cost of goods sold that is customer funded.
ulbi_ResearchAndDevelopmentRevenue
Research and Development, Revenue
Represents the amount of revenue recognized in R&D.
Revenue from External Customers by Geographic Areas [Table Text Block]
ulbi_ResearchAndDevelopmentExpenseGross
Research and Development Expense, Gross
The gross costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.
Government & Defense [Member]
Represents information pertaining to the Government and Defense customer.
Revenue, percentage
The percentage of total revenue for the period.
Commercial [Member]
Represents information pertaining to the Commercial customer.
ulbi_NumberOfDilutiveStockOptionsIncludedInDilutedEarningsPerShareCalculation
Number of Dilutive Stock Options Included in Diluted Earnings Per Share Calculation
Represents the number of dilutive stock options included in diluted earnings per share calculation.
Statement [Table]
Schedule of Revenues from External Customers by Business Segment Sector [Table Text Block]
Tabular disclosure of material revenue from specific sectors of each business segment.
ulbi_NumberOfSharesDueToDilutiveStockOptionsIncludedInDilutedEarningsPerShareCalculation
Number of Shares Due to Dilutive Stock Options Included in Diluted Earnings Per Share Calculation
Represents the number of shares due to dilutive stock options included in diluted earnings per share calculation.
ulbi_NumberOfSharesDueToDilutiveRestrictedStockUnitsIncludedInDilutedEarningsPerShareCalculation
Number of Shares Due to Dilutive Restricted Stock Units Included in Diluted Earnings Per Share Calculation
Represents the number of shares due to diluted restricted stock units included in diluted earnings per share calculation.
Commitments and Contingencies Disclosure [Text Block]
Property, Plant and Equipment, Estimated Useful Life [Table Text Block]
The tabular disclosure of estimated useful life for property, plant and equipment.
Effect of Foreign Currency Translation
ulbi_NumberOfDilutiveRestrictedStockUnitsIncludedInDilutedEarningspersharecalculation
Number of Dilutive Restricted Stock Units Included in Diluted EarningsPerShareCalculation
Represents the number of diluted restricted stock unites included in diluted earnings per share calculation.
us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Net Loss Attributable to Non-Controlling Interest
Non-Controlling Interest
Other Non-Current Liabilities
Income Statement [Abstract]
Acquisition of Accutronics
FINANCING ACTIVITIES:
us-gaap_IncreaseDecreaseInRestrictedCash
Change in Restricted Cash
Share Repurchase Program [Member]
Represents the share repurchase program approved by the company's board of directors.
us-gaap_DeferredTaxLiabilitiesNoncurrent
Deferred Income Taxes
Non-Current Deferred Tax Liabilities
ulbi_DefinedContributionPlanMaximumEmployeeContributionPercentageSubjectToEmployerMatchingContribution
Defined Contribution Plan, Maximum Employee Contribution Percentage, Subject to Employer Matching Contribution
The maximum employee contribution percentage that is subject to employer matching contribution within a defined contribution plan.
Foreign [Member]
Represents information pertaining to countries that are foreign to the United States.
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
President [Member]
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Business Insurance Recoveries [Text Block]
Schedule of Net Deferred Tax Liabilities [Table Text Block]
Tabular disclosure of the components of net deferred tax liability recognized in an entity's statement of financial position.
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
ulbi_LineOfCreditMaximumBorrowingCapacityPercentageOfBookValueOfEligibleInventory
Line of Credit, Maximum Borrowing Capacity, Percentage of Book Value of Eligible Inventory
Represents the amount of availability of the line of credit, expressed as a percentage of eligible inventory.
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
us-gaap_TemporaryEquityForeignCurrencyTranslationAdjustments
Foreign Currency Translation Adjustments
ulbi_LineOfCreditMaximumBorrowingCapacityPercentageOfEligibleAccountsReceivable
Line of Credit, Maximum Borrowing Capacity, Percentage of Eligible Accounts Receivable
Represents the amount of availability of the line of credit, expressed as a percentage of eligible accounts receivable.
Capital Addition Purchase Commitments [Member]
Letter of Credit [Member]
ulbi_LineOfCreditMaximumBorrowingCapacityPercentageOfAppraisedNetOrderlyLiquidationValueOfEligibleInventory
Line of Credit, Maximum Borrowing Capacity, Percentage of Appraised Net Orderly Liquidation Value of Eligible Inventory
Represents the amount of availability of the line of credit, expressed as a percentage of appraised net orderly liquidation value of eligible inventory.
Title of Individual [Axis]
ulbi_MinimumFixedChargeCoverageRatio
Minimum Fixed Charge Coverage Ratio
The minimum fixed charge coverage ratio
Relationship to Entity [Domain]
ulbi_DeferredIncomeTaxExpenseBenefitAssetImpairmentCharges
Deferred Income Tax Expense (Benefit) Asset Impairment Charges
The amount of deferred income tax expense (benefit) related to asset impairment charges.
ulbi_ValuationAllowanceDeferredTaxAssetsChangeInAmountDueToSettlementOfUncertainTaxPosition
Valuation Allowance, Deferred Tax Assets, Change in Amount Due to Settlement of Uncertain Tax Position
Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset in relation to the settlement of an uncertain tax position.
ulbi_LineOfCreditMinimumAdditionalBorrowingCapacityInAdditionToAccountsReceivable
Line of Credit Minimum Additional Borrowing Capacity in Addition to Accounts Receivable
Represents the amount of potential additional borrowing capacity.
Finite-lived Intangible Assets Amortization Expense [Table Text Block]
us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Acquisition of Accutronics, Net of Cash Acquired
ulbi_ValuationAllowanceDeferredTaxAssetsChangeInAmountOther
Valuation Allowance, Deferred Tax Assets, Change in Amount, Other
Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset in relation to situations categorized as other.
Net Income
Net income
Greater than $8 Million [Member]
Represents credit facility with quarterly average undrawn borrowing availability greater than $8 million.
$5 to $8 Million [Member]
Represents credit facility with quarterly average undrawn borrowing availability $5 to $8 million.
us-gaap_PaymentsToAcquireBusinessesGross
Payments to Acquire Businesses, Gross
Less than $5 Million [Member]
Represents credit facility with quarterly average undrawn borrowing availability less than $5 million.
ulbi_IncreaseInNetOperatingLossCarryForwardResultingFromSettlementOfUncertainTaxPosition
Increase in Net Operating Loss Carry Forward, Resulting from Settlement of Uncertain Tax Position
The amount of increase to operating loss carry forward in relation to the settlement of uncertain tax positions.
2004 Long-term Incentive Plan [Member]
Represents the long-term incentive stockholder's equity compensation plan.
Interest Rate Margins on Outstanding Debt [Table Text Block]
Tabular disclosure of interest rate margins on outstanding debt.
2014 Long-term Incentive Plan [Member]
Represents the long-term incentive stockholder's equity compensation plan.
Range Three [Member]
Represents information pertaining to range three.
Range One [Member]
Represents information pertaining to range one.
Range Two [Member]
Represents information pertaining to range two.
ulbi_SharebasedCompensationArrangementBysharebasedPaymentAwardFairValueAssumptionsForfeitureRate
Forfeiture rate
The forfeiture rate assumption that is used in valuing an option on its own shares.
ulbi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsIncrementalVestingShares
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Incremental Vesting Shares
Represents the incremental amount of shares to vest annually.
Range Four [Member]
Represents information pertaining to range four.
ulbi_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsMinimumClosingSharePrice
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Minimum Closing Share Price
Represents the minimum closing price per share to release shares expected to vest.
Income Tax Provision
Total income tax provision
Income Tax Provision
us-gaap_LiabilitiesCurrent
Total Current Liabilities
us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
Accrued Expenses and Other Current Liabilities
Class of Stock [Axis]
us-gaap_CashPeriodIncreaseDecrease
DECREASE IN CASH
Effect of Exchange Rate Changes on Cash
Leases of Lessee Disclosure [Text Block]
ulbi_NumberOfMajorCustomers
Number of Major Customers
Represents the number of major customers.
us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Defined Contribution Plan, Employer Discretionary Contribution Amount
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Large Defense Primary Contractor, 1 [Member]
Represents 1 large defense primary contractor.
us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
Defined Contribution Plan, Employer Matching Contribution, Percent of Match
Large Defense Primary Contractors, 1 and 2 [Member]
Represents 2 large defense primary contractors.
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Interest Rate Margin on Outstanding Borrowings
Awards Other than Stock Options and SARs [Member]
Represents awards other than stock options and SARs.
Options III [Member]
Represents the third issuance of options.
Construction in Process in Accounts Payable
Options I [Member]
Represents all options issued under the first issuance.
Options II [Member]
Represents the second issuance of options.
us-gaap_OperatingExpenses
Total Operating Expenses
Options IV [Member]
Represents the fourth issuance of options.
Accrued Compensation and Related Benefits
Capital Loss Carryforward [Member]
Accounts Payable
Supplemental Cash Flow Information:
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Variable Rate [Axis]
Variable Rate [Domain]
Business Description and Accounting Policies [Text Block]
us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Cash Paid for Property, Equipment and Improvements
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Current Liabilities:
us-gaap_GainLossRelatedToLitigationSettlement
Gain (Loss) Related to Litigation Settlement
us-gaap_Assets
Total Assets
Total Assets
us-gaap_AssetImpairmentCharges
Asset Impairment Charges
us-gaap_GainOnBusinessInterruptionInsuranceRecovery
Gain on Business Interruption Insurance Recovery
us-gaap_BusinessCombinationAcquisitionRelatedCosts
Business Combination, Acquisition Related Costs
Intangible Asset Impairment
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)
Stockholders' Equity Note Disclosure [Text Block]
us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Line of Credit Facility, Interest Rate at Period End
us-gaap_DepreciationAndAmortization
Depreciation and Amortization of Intangible Assets
us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Line of Credit Facility, Remaining Borrowing Capacity
Amortization of Intangible Assets
us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Line of Credit Facility, Maximum Borrowing Capacity
us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage
Restricted Cash
Accumulated Amortization
Net
Cost
us-gaap_NetIncomeLoss
Net Income Attributable to Ultralife
Net Income Attributable to Ultralife Corporation
us-gaap_AdvertisingExpense
Advertising Expense
Performance Shares [Member]
Goodwill
Goodwill
Goodwill balance
Goodwill balance
us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Less – Accumulated Depreciation
Restricted Stock [Member]
Property, Equipment and Improvements, Net
Total
Accutronics Limited [Member]
Represents information pertaining to acquisition of Accutronics Limited.
Employee Stock Option [Member]
Property, plant and equipment, gross
us-gaap_NoncurrentAssets
Long-Lived Assets
ulbi_PaymentsToAcquireBusinessesNetOfCashAcquiredWorkingCapitalAdjustment
Payments to Acquire Businesses, Net of Cash Acquired Working Capital Adjustment
The payments to acquire businesses based on the difference between actual and estimated amounts of working capital.
us-gaap_ConstructionInProgressGross
Construction in Progress, Gross
us-gaap_GainLossOnDispositionOfAssets
Loss on Long-Lived Asset Disposals
ulbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredIncomeTaxesOnIntangibleAssets
Deferred Income Taxes on Intangible Assets
Amount of deferred tax liability on intangible assets attributable to taxable temporary difference assumed at the acquisition date that are classified as current.
Debt Disclosure [Text Block]
ulbi_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedLiabilitiesCurrent
Accrued Expenses
Amount of liabilities accrued, assumed at the acquisition date.
Selling, General and Administrative
Communications Systems Segment [Member]
Represents the company's communications systems segment.
us-gaap_DisclosureTextBlockAbstract
Notes to Financial Statements
Battery & Energy Products Segment [Member]
Represents the company's battery & energy products segment.
Distributor Relationships [Member]
Represents information pertaining to distributor relationships.
Other (Expense) Income:
ulbi_BusinessInterruptionLossGross
Business Interruption Loss, Gross
Represents the gross amount of the business interruption loss.
ulbi_BusinessInterruptionInsuranceDeductible
Business Interruption, Insurance Deductible
Represents the insurance deductible pertaining to the business interruption. The insurance receivable from the insurance company is shown net of this amount.
Use of Estimates, Policy [Policy Text Block]
New Accounting Pronouncements, Policy [Policy Text Block]
Reclassification, Policy [Policy Text Block]
Schedule of Segment Reporting Information, by Segment [Table Text Block]
ulbi_InterestAndOtherFinanceCosts
Interest Expense, Net
Represents the net amount of interest and other finance costs during the period.
INVESTING ACTIVITIES:
Research and Development
us-gaap_NumberOfOperatingSegments
Number of Operating Segments