Condensed Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Condensed Statements of Comprehensive Income (Loss)
Net Loss	$ (25,857)	$ (25,828)	$ (48,978)	$ (50,007)
Other comprehensive income (loss)
Unrealized gain (loss) on marketable securities	86	(31)	113	(73)
Other comprehensive gain (loss), net of tax	86	(31)	113	(73)
Comprehensive income (loss), net of tax	$ (25,771)	$ (25,859)	$ (48,865)	$ (50,080)