Unaudited Condensed Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Collaboration and other revenue	$ 11,000	$ 0	$ 11,000	$ 0
Operating expenses:
Research and development expense	16,395	28,400	51,445	81,057
General and administrative expense	5,875	6,620	17,254	20,094
Total operating expenses	22,270	35,020	68,699	101,151
Loss from operations	(11,270)	(35,020)	(57,699)	(101,151)
Other income:
Interest income	692	1,734	2,815	4,674
Other income	(8)	(39)	(8)	(60)
Total other income	684	1,695	2,807	4,614
Net loss and comprehensive loss	$ (10,586)	$ (33,325)	$ (54,892)	$ (96,537)
Net loss per common share, basic	$ (0.22)	$ (0.7)	$ (1.14)	$ (2.02)
Net loss per common share, diluted	$ (0.22)	$ (0.7)	$ (1.14)	$ (2.02)
Weighted-average shares of common stock outstanding, basic	48,335,847	47,834,122	48,213,183	47,707,259
Weighted-average shares of common stock outstanding, diluted	48,335,847	47,834,122	48,213,183	47,707,259