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Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Statement of Cash Flows [Abstract]    
Net loss $ (2,131)us-gaap_ProfitLoss $ (960)us-gaap_ProfitLoss
Loss (gain) from discontinued operations, net of tax 61us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax (128)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax
Adjustments to reconcile net loss from continuing operations to net cash provided by operating activities    
Depreciation and amortization of financing fees 2,828us-gaap_DepreciationDepletionAndAmortization 3,029us-gaap_DepreciationDepletionAndAmortization
Amortization of intangible assets 305us-gaap_AmortizationOfIntangibleAssets 402us-gaap_AmortizationOfIntangibleAssets
Loss on long-lived asset impairment and disposals 298us-gaap_GainLossOnDispositionOfAssets 56us-gaap_GainLossOnDispositionOfAssets
Foreign exchange loss 0us-gaap_ForeignCurrencyTransactionGainLossRealized 15us-gaap_ForeignCurrencyTransactionGainLossRealized
Stock-based compensation 1,003us-gaap_ShareBasedCompensation 1,131us-gaap_ShareBasedCompensation
Changes in deferred income taxes 196us-gaap_IncreaseDecreaseInDeferredIncomeTaxes 113us-gaap_IncreaseDecreaseInDeferredIncomeTaxes
Provision for allowance for doubtful accounts 52us-gaap_ProvisionForDoubtfulAccounts 29us-gaap_ProvisionForDoubtfulAccounts
Changes in operating assets and liabilities:    
Accounts receivable 2,878us-gaap_IncreaseDecreaseInAccountsReceivable 6,694us-gaap_IncreaseDecreaseInAccountsReceivable
Inventories (46)us-gaap_IncreaseDecreaseInInventories 4,418us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets 249us-gaap_IncreaseDecreaseInPrepaidExpense (647)us-gaap_IncreaseDecreaseInPrepaidExpense
Due from insurance company 0us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable 316us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable
Income taxes receivable and payable (25)us-gaap_IncreaseDecreaseInIncomeTaxes 121us-gaap_IncreaseDecreaseInIncomeTaxes
Accounts payable and other liabilities (2,003)us-gaap_IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities (6,694)us-gaap_IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities
Net cash provided by operating activities from continuing operations 3,665us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations 7,895us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
Net cash used in operating activities of discontinued operations 0us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations (998)us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations
Net cash provided by operating activities 3,665us-gaap_NetCashProvidedByUsedInOperatingActivities 6,897us-gaap_NetCashProvidedByUsedInOperatingActivities
INVESTING ACTIVITIES:    
Cash paid for property, equipment and improvements (1,653)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (766)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Change in restricted cash 268us-gaap_IncreaseDecreaseInRestrictedCash (2)us-gaap_IncreaseDecreaseInRestrictedCash
Net cash used in investing activities from continuing operations (1,385)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations (768)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
Net cash provided by investing activities from discontinued operations 0us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations 499us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
Net cash used in investing activities (1,385)us-gaap_NetCashProvidedByUsedInInvestingActivities (269)us-gaap_NetCashProvidedByUsedInInvestingActivities
FINANCING ACTIVITIES:    
Cash paid to repurchase treasury stock (762)us-gaap_TreasuryStockValueAcquiredCostMethod 0us-gaap_TreasuryStockValueAcquiredCostMethod
Proceeds from exercise of stock options 11us-gaap_ProceedsFromStockOptionsExercised 12us-gaap_ProceedsFromStockOptionsExercised
Net cash (used in) provided by financing activities (751)us-gaap_NetCashProvidedByUsedInFinancingActivities 12us-gaap_NetCashProvidedByUsedInFinancingActivities
Effect of exchange rate changes on cash and cash equivalents 116us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents (230)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS 1,645us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease 6,410us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents, beginning of period 16,066us-gaap_CashAndCashEquivalentsAtCarryingValue 9,656us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents, end of period 17,711us-gaap_CashAndCashEquivalentsAtCarryingValue 16,066us-gaap_CashAndCashEquivalentsAtCarryingValue
Supplemental Cash Flow Information:    
Income taxes paid 60us-gaap_IncomeTaxesPaid 100us-gaap_IncomeTaxesPaid
Construction in Process in accounts payable 1,019us-gaap_CapitalExpendituresIncurredButNotYetPaid 0us-gaap_CapitalExpendituresIncurredButNotYetPaid
Interest paid $ 76us-gaap_InterestPaid $ 107us-gaap_InterestPaid