Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (4,845)	$ (10,454)	$ (18,226)	$ (19,136)
Other comprehensive income:
Unrealized gains on marketable securities, net of tax of $0	0	0	0	0
Comprehensive loss	$ (4,845)	$ (10,454)	$ (18,226)	$ (19,136)