Condensed Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenue	$ 1,332	$ 1,249
Operating expenses:
Research and development	(29,273)	(20,881)
General and administrative	(14,154)	(8,579)
Total operating expenses	(43,427)	(29,460)
Loss from operations	(42,095)	(28,211)
Interest and other income (expense), net	4,858	111
Interest expense	(311)	0
Net loss	(37,548)	(28,100)
Net loss attributable to common stockholders	(37,548)	(28,100)
Net loss attributable to common stockholders	$ (37,548)	$ (28,100)
Net loss per share, attributable to common stockholders:
Basic (USD per share)	$ (0.67)	$ (0.78)
Diluted (USD per share)	$ (0.67)	$ (0.78)
Shares used in computing net loss per share attributable to common stockholders:
Basic (in shares)	56,057,603	36,116,440
Diluted (in shares)	56,057,603	36,116,440
Comprehensive loss:
Net loss	$ (37,548)	$ (28,100)
Net unrealized gain (loss) on short-term investments and cash equivalents	627	(749)
Total comprehensive gain (loss)	627	(749)
Comprehensive loss	$ (36,921)	$ (28,849)