Consolidated Statements of Comprehensive Income Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income (loss)	$ 153	$ (573)
Other comprehensive loss, net of tax:
Foreign currency translation adjustment	(182)	(222)
Unrealized losses on available-for-sale securities	(7)	(87)
Comprehensive loss	$ (36)	$ (882)