Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income	$ 22,943	$ 17,177	$ 10,590
Other comprehensive income (loss):
Foreign currency translation adjustment, net	(1,626)	2,294	(534)
Unrealized gain (loss) on short-term marketable securities	15
Total other comprehensive income (loss)	(1,611)	2,294	(534)
Comprehensive income	$ 21,332	$ 19,471	$ 10,056