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Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Statement of Comprehensive Income [Abstract]        
Net income (loss) $ (576) $ 1,619 $ 2,855 $ 5,688
Other comprehensive income (loss):        
Foreign currency translation adjustment 131 (184) 231 99
Total comprehensive income (loss) $ (445) $ 1,435 $ 3,086 $ 5,787