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Consolidated Statements of Comprehensive Income (Loss) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Statement of Comprehensive Income [Abstract]    
Net income (loss) $ 1,079 $ (540)
Other comprehensive loss:    
Foreign currency translation adjustments (84) (4)
Total other comprehensive loss (84) (4)
Comprehensive income (loss) $ 995 $ (544)