CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating expenses:
Research and development	$ 30,383	$ 21,662
General and administrative	19,805	15,820
Total operating expenses	50,188	37,482
Loss from operations	(50,188)	(37,482)
Other income (expense):
Interest income	1,783	800
Interest expense	(219)	(670)
Gain on debt extinguishment		567
Other income (expense), net	36	(9)
Net loss	$ (48,588)	$ (36,794)
Net loss per common share, basic	$ (1.58)	$ (1.33)
Net loss per common share, diluted	$ (1.58)	$ (1.33)
Weighted-average number of shares used in computing net loss per common share, basic	30,703,295	27,710,686
Weighted-average number of shares used in computing net loss per common share, diluted	30,703,295	27,710,686
Comprehensive loss:
Net loss	$ (48,588)	$ (36,794)
Other comprehensive items:
Unrealized loss on marketable securities	(671)	(333)
Total other comprehensive loss	(671)	(333)
Total comprehensive loss	$ (49,259)	$ (37,127)