Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - 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 revenue	$ 2,612	$ 831	$ 7,106	$ 2,105
Operating expenses:
Research and development	12,807	16,506	41,162	61,638
General and administrative	6,225	7,228	19,395	20,029
Total operating expenses	19,032	23,734	60,557	81,667
Loss from operations	(16,420)	(22,903)	(53,451)	(79,562)
Other Income (expense), net:
Interest income, net	14	684	644	2,323
Other income (expense), net	(38)	(29)	(71)	25
Total other income (expense), net	(24)	655	573	2,348
Net loss	$ (16,444)	$ (22,248)	$ (52,878)	$ (77,214)
Net loss per common stock attributable to common stockholders, basic	$ (0.3)	$ (0.4)	$ (0.96)	$ (1.44)
Net loss per common stock attributable to common stockholders, diluted	$ (0.3)	$ (0.4)	$ (0.96)	$ (1.44)
Weighted-average common stock used in net loss per share attributable to common stockholders, basic	55,155,583	55,140,058	55,153,699	53,629,468
Weighted-average common stock used in net loss per share attributable to common stockholders, diluted	55,155,583	55,140,058	55,153,699	53,629,468
Comprehensive loss:
Net Income (Loss)	$ (16,444)	$ (22,248)	$ (52,878)	$ (77,214)
Other comprehensive income (loss):
Unrealized gain on marketable securities		85	14	393
Comprehensive loss	$ (16,444)	$ (22,163)	$ (52,864)	$ (76,821)