CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating expenses
Research and development	$ 11,051	$ 13,038	$ 40,400	$ 44,204
General and administrative	6,310	7,168	20,603	21,778
Total operating expenses	17,361	20,206	61,003	65,982
Loss from operations	(17,361)	(20,206)	(61,003)	(65,982)
Other income, net
Other income, net	613	416	2,254	226
Total other income, net	613	416	2,254	226
Net loss	(16,748)	(19,790)	(58,749)	(65,756)
Comprehensive loss	$ (16,748)	$ (19,790)	$ (58,749)	$ (65,756)
Net loss per share, basic (in dollars per share)	$ (0.61)	$ (0.72)	$ (2.14)	$ (2.40)
Net loss per share, diluted (in dollars per share)	$ (0.61)	$ (0.72)	$ (2.14)	$ (2.40)
Weighted average common shares outstanding, basic (in shares)	27,523,821	27,399,906	27,475,579	27,384,085
Weighted average common shares outstanding, diluted (in shares)	27,523,821	27,399,906	27,475,579	27,384,085