Condensed 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	$ 9,133	$ 7,321	$ 17,846	$ 13,306
General and administrative	4,345	3,090	8,767	6,312
Total operating expenses	13,478	10,411	26,613	19,618
Loss from operations	(13,478)	(10,411)	(26,613)	(19,618)
Other income (expense)
Interest income, net	1,884	260	3,716	337
Other income (expense), net	(16)	0	(20)	1
Total other income	1,868	260	3,696	338
Net loss	(11,610)	(10,151)	(22,917)	(19,280)
Other comprehensive gain (loss)
Unrealized gain (loss) on marketable securities	(122)	(151)	105	(734)
Comprehensive loss	$ (11,732)	$ (10,302)	$ (22,812)	$ (20,014)
Net loss per common share, basic (in dollars per share)	$ (0.28)	$ (0.25)	$ (0.56)	$ (0.48)
Net loss per common share, diluted (in dollars per share)	$ (0.28)	$ (0.25)	$ (0.56)	$ (0.48)
Weighted-average shares outstanding, basic (in shares)	41,025,062	40,497,087	41,025,062	40,485,244
Weighted-average shares outstanding diluted (in shares)	41,025,062	40,497,087	41,025,062	40,485,244