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Consolidated Statements of Comprehensive (Loss) Income (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Statement of Comprehensive Income [Abstract]      
Net (loss) income $ (8,272)us-gaap_NetIncomeLoss $ (234)us-gaap_NetIncomeLoss $ 13,907us-gaap_NetIncomeLoss
Other comprehensive (loss) income:      
Foreign currency translation income 0us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent 0us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent 17us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
Comprehensive (loss) income $ (8,272)us-gaap_ComprehensiveIncomeNetOfTax $ (234)us-gaap_ComprehensiveIncomeNetOfTax $ 13,924us-gaap_ComprehensiveIncomeNetOfTax