CONDENSED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating expenses:
Research and development	$ 10,513	$ 5,700	$ 23,564	$ 14,446
General and administrative	3,851	1,273	9,103	3,568
Total operating expenses	14,364	6,973	32,667	18,014
Loss from operations	(14,364)	(6,973)	(32,667)	(18,014)
Other income (expense):
Interest and other income (expense), net	(66)	(17)	(44)	164
Total other income (expense), net	(66)	(17)	(44)	164
Net loss	$ (14,430)	$ (6,990)	$ (32,711)	$ (17,850)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (9.78)	$ (6.13)	$ (24.18)	$ (16.55)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (9.78)	$ (6.13)	$ (24.18)	$ (16.55)
Weighted-average common shares outstanding, basic (in shares)	1,475,170	1,139,647	1,352,721	1,078,783
Weighted-average common shares outstanding, diluted (in shares)	1,475,170	1,139,647	1,352,721	1,078,783