CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating expenses:
Research and development	$ 13,528	$ 13,597	$ 41,377	$ 37,928
General and administrative	5,711	4,911	16,761	15,766
Total operating expenses	19,239	18,508	58,138	53,694
Loss from operations	(19,239)	(18,508)	(58,138)	(53,694)
Other income, net	328	578	705	1,244
Net loss	$ (18,911)	$ (17,930)	$ (57,433)	$ (52,450)
Net loss per common share
Basic (in dollars per share)	$ (0.68)	$ (0.65)	$ (2.07)	$ (1.90)
Diluted (in dollars per share)	$ (0.68)	$ (0.65)	$ (2.07)	$ (1.90)
Weighted average shares outstanding
Basic (in shares)	27,748,844	27,615,038	27,734,271	27,607,685
Diluted (in shares)	27,748,844	27,615,038	27,734,271	27,607,685
Comprehensive loss:
Net loss	$ (18,911)	$ (17,930)	$ (57,433)	$ (52,450)
Unrealized gain (loss) on marketable securities	(56)	66	(1,733)	(908)
Total comprehensive loss	$ (18,967)	$ (17,864)	$ (59,166)	$ (53,358)