Unaudited Condensed Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Collaboration revenue	$ 1,813	$ 1,159	$ 5,767	$ 2,021
Operating expenses:
Research and development (includes related party amounts of $134, $416, $539 and $1,325, respectively)	13,737	8,406	38,007	15,068
General and administrative (includes related party amounts of $21, $62, $85 and $265, respectively)	6,098	3,656	16,585	6,392
Total operating expenses	19,835	12,062	54,592	21,460
Loss from operations	(18,022)	(10,903)	(48,825)	(19,439)
Other income:
Interest income	1,326	137	1,831	183
Total other income	1,326	137	1,831	183
Net loss	(16,696)	(10,766)	(46,994)	(19,256)
Other comprehensive loss:
Unrealized gain (loss) on available-for-sale securities, net	(370)	7	(2,007)	24
Comprehensive loss	$ (17,066)	$ (10,759)	$ (49,001)	$ (19,232)
Net loss per common share, basic	$ (0.40)	$ (0.26)	$ (1.13)	$ (1.10)
Net loss per common share, diluted	$ (0.40)	$ (0.26)	$ (1.13)	$ (1.10)
Weighted average number of shares outstanding, basic	41,526,524	41,134,102	41,431,023	17,572,807
Weighted-average shares of common stock outstanding, diluted	41,526,524	41,134,102	41,431,023	17,572,807