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Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Condensed Consolidated Statements of Comprehensive Income [Abstract]    
Net income (loss) $ (17) $ 197
Other comprehensive income (loss):    
Foreign currency translation adjustment (1) 7
Comprehensive income (loss) $ (18) $ 204