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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS        
Net loss $ (6,815) $ (7,277) $ (23,134) $ (19,901)
Other comprehensive loss:        
Foreign currency translation adjustments (600) (158) (563) (162)
Comprehensive loss $ (7,415) $ (7,435) $ (23,697) $ (20,063)