Consolidated Statements of Comprehensive Loss - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Consolidated Statements of Comprehensive Loss    
Net loss $ (10,044) $ (3,552)
Other comprehensive income (loss):    
Foreign currency translation gain (loss) (847) 953
Net unrealized gain on short-term investments, net of tax 35  
Comprehensive loss $ (10,856) $ (2,599)