Condensed Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating expenses:
Research and development	$ 11,462	$ 7,664	$ 23,297	$ 15,163
General and administrative	6,423	5,386	13,206	9,560
Total operating expenses	17,885	13,050	36,503	24,723
Loss from operations	(17,885)	(13,050)	(36,503)	(24,723)
Other income (expense):
Interest income, net	604	113	832	241
Other income (expense), net	(31)	63	(72)	11
Total other income (expense)	573	176	760	252
Loss before (benefit) provision for income taxes	(17,312)	(12,874)	(35,743)	(24,472)
(Benefit) provision for income taxes	(2)	0	0	4
Net loss	(17,310)	(12,874)	(35,743)	(24,476)
Unrealized gain (loss) on marketable securities, net of tax	(357)	20	(945)	7
Comprehensive loss	$ (17,667)	$ (12,854)	$ (36,688)	$ (24,469)
Net loss per share -- basic and diluted	$ (0.38)	$ (0.29)	$ (0.79)	$ (0.54)
Weighted-average common shares outstanding	45,571,067	45,070,104	45,518,845	44,928,518