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Consolidated Condensed Statements Of Cash Flows (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Cash flows from operating activities:    
Net income $ 284us-gaap_NetIncomeLoss $ 517us-gaap_NetIncomeLoss
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation and amortization 423us-gaap_DepreciationDepletionAndAmortization 559us-gaap_DepreciationDepletionAndAmortization
Stock-based compensation 169us-gaap_ShareBasedCompensation 142us-gaap_ShareBasedCompensation
Change in deferred gain (28)iin_IncreaseDecreaseSaleLeasebackTransactionDeferredGainNoncurrent (28)iin_IncreaseDecreaseSaleLeasebackTransactionDeferredGainNoncurrent
Change in allowance for doubtful accounts 7us-gaap_ProvisionForDoubtfulAccounts 1us-gaap_ProvisionForDoubtfulAccounts
Equity in loss of partnerships 49us-gaap_IncomeLossFromEquityMethodInvestments 35us-gaap_IncomeLossFromEquityMethodInvestments
Loss on sale of discontinued operation   120us-gaap_GainLossOnSaleOfBusiness
Changes in operating assets and liabilities:    
Accounts receivable 92us-gaap_IncreaseDecreaseInAccountsReceivable (1,133)us-gaap_IncreaseDecreaseInAccountsReceivable
Inventories 41us-gaap_IncreaseDecreaseInInventories (381)us-gaap_IncreaseDecreaseInInventories
Other assets 297us-gaap_IncreaseDecreaseInOtherOperatingAssets 343us-gaap_IncreaseDecreaseInOtherOperatingAssets
Accounts payable 181us-gaap_IncreaseDecreaseInAccountsPayable 544us-gaap_IncreaseDecreaseInAccountsPayable
Accrued expenses (382)us-gaap_IncreaseDecreaseInAccruedLiabilities 306us-gaap_IncreaseDecreaseInAccruedLiabilities
Other liabilities 38us-gaap_IncreaseDecreaseInOtherOperatingLiabilities (50)us-gaap_IncreaseDecreaseInOtherOperatingLiabilities
Net cash provided by operating activities 1,171us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations 975us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
Cash flows from investing activities:    
Proceeds from sale of property, plant and equipment   21us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Proceeds from sale of discontinued operation   500us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates
Purchases of property, plant and equipment (711)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (241)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Net cash (used in) provided by investing activities (711)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations 280us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
Cash flows from financing activities:    
Proceeds from long-term borrowings 2,926us-gaap_ProceedsFromIssuanceOfLongTermDebt 2,999us-gaap_ProceedsFromIssuanceOfLongTermDebt
Repayments of long-term borrowings (2,430)us-gaap_RepaymentsOfLongTermDebt (3,980)us-gaap_RepaymentsOfLongTermDebt
Proceeds from employee stock purchases and exercise of stock options 42us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions 23us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
Change in restricted cash 79us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities (128)us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities
Change in checks written in excess of cash (516)us-gaap_ProceedsFromRepaymentsOfBankOverdrafts 178us-gaap_ProceedsFromRepaymentsOfBankOverdrafts
Net cash provided by (used in) financing activities 101us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations (908)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
Effect of exchange rate changes on cash (196)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents 12us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
Net increase in cash 365us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease 359us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash, beginning of period 328us-gaap_Cash 217us-gaap_Cash
Cash, end of period $ 693us-gaap_Cash $ 576us-gaap_Cash