Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Collaboration revenue	$ 8,083	$ 8,612
Operating expenses:
Research and development	54,922	53,441
General and administrative	26,140	22,262
Total operating expenses	81,062	75,703
Loss from operations	(72,979)	(67,091)
Other income:
Interest income	14,686	4,032
Total other income	14,686	4,032
Net loss	(58,293)	(63,059)
Other comprehensive gain (loss):
Unrealized gain (loss) on available-for-sale securities, net	2,200	(1,265)
Comprehensive loss	$ (56,093)	$ (64,324)
Net loss per common share, basic	$ (1.32)	$ (1.52)
Net loss per common share, diluted	$ (1.32)	$ (1.52)
Weighted-average shares of common stock outstanding, basic	44,016,283	41,469,631
Weighted-average shares of common stock outstanding diluted	44,016,283	41,469,631