CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating expenses
Research and development	$ 13,218	$ 16,246	$ 29,349	$ 31,166
General and administrative	6,898	8,306	14,293	14,610
Total operating expenses	20,116	24,552	43,642	45,776
Loss from operations	(20,116)	(24,552)	(43,642)	(45,776)
Other income (expense), net
Other income (expense), net	761	(61)	1,641	(190)
Total other income (expense), net	761	(61)	1,641	(190)
Net loss	(19,355)	(24,613)	(42,001)	(45,966)
Comprehensive loss	$ (19,355)	$ (24,613)	$ (42,001)	$ (45,966)
Net loss per share, basic (in dollars per share)	$ (0.70)	$ (0.90)	$ (1.53)	$ (1.68)
Net loss per share, diluted (in dollars per share)	$ (0.70)	$ (0.90)	$ (1.53)	$ (1.68)
Weighted average common shares outstanding, basic (in shares)	27,468,668	27,384,614	27,451,058	27,376,043
Weighted average common shares outstanding, diluted (in shares)	27,468,668	27,384,614	27,451,058	27,376,043