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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Statement of Comprehensive Income [Abstract]    
Net loss $ (6,320)us-gaap_NetIncomeLoss $ (6,236)us-gaap_NetIncomeLoss
Other comprehensive (loss) income:    
Foreign currency translation adjustments (316)us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax 1us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
Comprehensive loss $ (6,636)us-gaap_ComprehensiveIncomeNetOfTax $ (6,235)us-gaap_ComprehensiveIncomeNetOfTax