Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenue:
Collaboration and license revenue	$ 3,129	$ 18,038
Operating expenses:
Research and development (includes $306 and $935 for the years ended December 31, 2022 and 2021, respectively, attributable to related parties)	80,253	61,360
General and administrative	32,908	28,011
Total operating expenses	113,161	89,371
Loss from operations	(110,032)	(71,333)
Other income (expense):
Interest income	2,573	137
Other expense, net	(35)	(121)
Total other income (expense), net	2,538	16
Net loss	$ (107,494)	$ (71,317)
Net loss per share, basic	$ (3.32)	$ (2.57)
Net loss per share, diluted	$ (3.32)	$ (2.57)
Weighted-average shares outstanding used in computing net loss per share, basic	32,351,221	27,730,420
Weighted-average shares outstanding used in computing net loss per share, diluted	32,351,221	27,730,420