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Consolidated Statements of Comprehensive Income (Loss) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]      
Net income (loss) $ (7,526)us-gaap_NetIncomeLoss $ (186)us-gaap_NetIncomeLoss $ 5,392us-gaap_NetIncomeLoss
Foreign currency translation adjustments (551)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax (1,414)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax 363us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
Comprehensive income (loss) $ (8,077)us-gaap_ComprehensiveIncomeNetOfTax $ (1,600)us-gaap_ComprehensiveIncomeNetOfTax $ 5,755us-gaap_ComprehensiveIncomeNetOfTax