CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (26,856)	$ (21,440)	$ (5,688)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	444	160	(65)
Comprehensive loss	$ (26,412)	$ (21,280)	$ (5,753)