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	$ 11,342	$ 10,170	$ 35,394	$ 25,769
General and administrative	4,067	3,160	11,961	9,837
Total operating expenses	15,409	13,330	47,355	35,606
Loss from operations	(15,409)	(13,330)	(47,355)	(35,606)
Interest income	269	33	443	124
Interest expense		(35)	(13)	(139)
Net loss	(15,140)	(13,332)	(46,925)	(35,621)
Unrealized gain (loss) on marketable securities	44	(7)	(21)	(41)
Comprehensive loss	$ (15,096)	$ (13,339)	$ (46,946)	$ (35,662)
Net loss per share attributable to common stockholders, basic	$ (0.48)	$ (0.42)	$ (1.48)	$ (1.26)
Net loss per share attributable to common stockholders, diluted	$ (0.48)	$ (0.42)	$ (1.48)	$ (1.26)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic	31,855,051	31,529,417	31,652,318	28,379,743
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted	31,855,051	31,529,417	31,652,318	28,379,743