Condensed Consolidated Statements of Comprehensive Loss (Statement) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net Loss	$ (20,753)	$ (10,792)	$ (49,486)	$ (29,376)
Unrealized (loss) on investment securities	(116)	0	(116)	0
Comprehensive Loss	$ (20,869)	$ (10,792)	$ (49,602)	$ (29,376)