Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Collaboration revenue	$ 1,558	$ 1,363
Operating expenses:
Research and development	48,029	38,797
General and administrative	19,057	17,556
Loss on impairment of long-lived assets	1,592	1,316
Total operating expenses	68,678	57,669
Loss from operations	(67,120)	(56,306)
Other income:
Interest income	4,499	1,041
Total other income	4,499	1,041
Loss before income tax expense	(62,621)	(55,265)
Income tax expense	(59)	(13)
Net loss	(62,680)	(55,278)
Other comprehensive income:
Unrealized holding gain on short-term investments, net of tax	23	10
Comprehensive loss	$ (62,657)	$ (55,268)
Net loss per share -basic	$ (1.26)	$ (1.83)
Net loss per share -diluted	$ (1.26)	$ (1.83)
Weighted-average common shares outstanding-basic	49,804,283	30,235,689
Weighted-average common shares outstanding-diluted	49,804,283	30,235,689