Condensed Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue	$ 0	$ 1,332
Operating expenses:
Research and development	(37,146)	(29,273)
General and administrative	(15,246)	(14,154)
Total operating expenses	(52,392)	(43,427)
Loss from operations	(52,392)	(42,095)
Interest and other income (expense), net	5,882	4,858
Interest expense	(445)	(311)
Net loss	$ (46,955)	$ (37,548)
Earnings Per Share [Abstract]
Basic (USD per share)	$ (0.78)	$ (0.67)
Diluted (USD per share)	$ (0.78)	$ (0.67)
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Shares used in computing net loss per share - basic (in shares)	60,180,921	56,057,603
Shares used in computing net loss per share - diluted (in shares)	60,180,921	56,057,603
Comprehensive loss:
Net loss	$ (46,955)	$ (37,548)
Net unrealized (loss) gain on short-term investments	(834)	627
Total other comprehensive (loss) gain	(834)	627
Comprehensive loss	$ (47,789)	$ (36,921)