CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (9,100)	$ (1,526)
Other comprehensive loss:
Change in foreign currency translation adjustment	(414)	264
Change in net unrealized gain (loss) on investments	15	(43)
Other comprehensive income (loss)	(399)	221
Comprehensive loss	$ (9,499)	$ (1,305)