Condensed Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating expenses:
Research and development	$ 16,244	$ 18,246
General and administrative	7,623	7,712
Restructuring Costs	2,583	0
Total operating expenses	26,450	25,958
Loss from operations	(26,450)	(25,958)
Other income (expense), net:
Loss on disposal of assets	(71)	0
Interest income, net	2,587	123
Total other income (expense), net	2,516	123
Net loss	(23,934)	(25,835)
Unrealized loss on investments in marketable securities	579	(309)
Comprehensive loss	$ (23,355)	$ (26,144)
Net loss per share attributable to common stockholders-basic	$ (0.43)	$ (0.48)
Net loss per share attributable to common stockholders-diluted	$ (0.43)	$ (0.48)
Weighted-average shares used in computing net loss per share-basic	55,864,475	54,005,299
Weighted-average shares used in computing net loss per share-diluted	55,864,475	54,005,299