CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (1,994)	$ 364
Other comprehensive income (loss):
Change in foreign currency translation adjustment	(1)	(211)
Change in net unrealized gain (loss) on investments	(4)	(1)
Other comprehensive income (loss)	(5)	(212)
Comprehensive income (loss)	$ (1,999)	$ 152