CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expenses:
Research and development	$ 7,455	$ 3,365
General and administrative	5,032	4,604
Total operating expenses	12,487	7,969
Loss from operations	(12,487)	(7,969)
Other income (expense):
Realized gain on marketable securities	15
Interest income	310
Interest expense	(243)	(3)
Net loss	(12,405)	(7,972)
Net loss attributable to common stockholders	$ (12,405)	$ (7,972)
Net loss per common share, basic and diluted	$ (0.40)	$ (0.42)
Weighted-average number of shares used in computing net loss per common share, basic and diluted	30,647,679	18,904,853
Comprehensive loss:
Net loss	$ (12,405)	$ (7,972)
Other comprehensive items:
Unrealized loss on marketable securities	(566)
Total other comprehensive loss	(566)
Total comprehensive loss	$ (12,971)	$ (7,972)