Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Condensed Consolidated Statements of Comprehensive Income (Loss)
Net (loss) income	$ (6,229)	$ 229	$ (10,954)	$ (5,010)
Other comprehensive (loss) income, net of tax
Foreign currency translation adjustments	(81)	70	(972)	36
Unrealized gain on marketable securities	101	29	41	45
Comprehensive (loss) income	(6,209)	328	(11,885)	(4,929)
Comprehensive (loss) income attributable to non-controlling interest	(366)	7	(390)	(75)
Comprehensive (loss) income attributable to common stockholders	$ (5,843)	$ 321	$ (11,495)	$ (4,854)