Consolidated Statement of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (39,503)	$ (57,487)
Other comprehensive loss:
Unrealized gains on marketable securities, net of tax of $0	0	0
Comprehensive loss	$ (39,503)	$ (57,487)