Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating expenses:
Research and development	$ 32,261,000	$ 14,896,000
General and administrative	10,263,000	3,176,000
Total operating expenses	42,524,000	18,072,000
Loss from operations	(42,524,000)	(18,072,000)
Other income (expense), net:
Interest income	314,000	48,000
Change in fair value of convertible preferred stock tranche liability		214,000
Other expense, net	(99,000)	(20,000)
Total other income, net	215,000	242,000
Loss before income tax expense	(42,309,000)	(17,830,000)
Income tax expense	(2,000)	(3,000)
Net loss	$ (42,311,000)	$ (17,833,000)
Net loss per share, basic and diluted	$ (2.70)	$ (17.49)
Weighted-average shares used in computing net loss per share, basic and diluted	15,696,314	1,019,615