Condensed Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (15,789)	$ (17,704)	$ (55,020)	$ (45,968)
Other comprehensive loss:
Unrealized gain (loss) on available-for-sale securities	717	(1,546)	2,073	(3,617)
Comprehensive loss	$ (15,072)	$ (19,250)	$ (52,947)	$ (49,585)