Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net loss	$ (14,380)	$ (6,836)	$ (42,690)	$ (22,132)
Unrealized gain (loss) on available-for-sale securities, net of tax	45	0	(262)	0
Adjustment for net gain (loss) realized and included in net income, net of tax	(34)	0	(34)	0
Total change in unrealized gain (loss) on marketable securities	11	0	(296)	0
Comprehensive loss	$ (14,369)	$ (6,836)	$ (42,986)	$ (22,132)