Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (7,852)	$ (28)	$ (10,449)
Other comprehensive income (loss):
Foreign currency translation adjustments	(493)	(513)	802
Unrealized losses from marketable securities, net of tax	0	(4)	(2)
Total other comprehensive income (loss)	(493)	(517)	800
Comprehensive loss	$ (8,345)	$ (545)	$ (9,649)