Condensed Statements of Convertible Preferred Stock and Stockholder's Deficit (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid In Capital [Member]	Accumulated Deficit [Member]	Convertible Preferred Stock [Member]
Beginning Balance at Dec. 31, 2020	$ (26,703)	$ 2	$ 393	$ (27,098)
Beginning Balance (in shares) at Dec. 31, 2020		2,639,026
Convertible preferred stock, Beginning Balance at Dec. 31, 2020					$ 30,062
Convertible preferred stock, Beginning Balance (in shares) at Dec. 31, 2020					32,198,879
Issuance of Series A-1 convertible preferred stock					$ 21,005
Issuance of Series A-1 convertible preferred stock, (in shares)					21,944,874
Issuance of Series B-1 convertible preferred stock					$ 92,654
Issuance of Series B-1 convertible preferred stock, (in shares)					32,958,612
Issuance of Series B-2 convertible preferred stock from convertible note					$ 7,917
Issuance of Series B-2 convertible preferred stock from convertible note (in shares)					2,805,850
Shares released from restriction upon vesting of early-exercised stock options	63		63
Shares released from restriction upon vesting of early-exercised stock options (in shares)		100,238
Exercise of common stock options	29		29
Exercise of common stock options, (in shares)		35,143
Vesting of shares of restricted common stock (in Shares)		117,369
Stock-based compensation	276		276
Net loss and comprehensive loss	(5,851)			(5,851)
Ending Balance at Mar. 31, 2021	(32,186)	$ 2	761	(32,949)
Ending Balance (in shares) at Mar. 31, 2021		2,891,776
Convertible preferred stock, Ending Balance at Mar. 31, 2021					$ 151,638
Convertible preferred stock, Ending Balance (in shares) at Mar. 31, 2021					89,908,215
Beginning Balance at Dec. 31, 2021	278,220	$ 5	372,284	(94,069)
Beginning Balance (in shares) at Dec. 31, 2021		39,175,279
Shares released from restriction upon vesting of early-exercised stock options	27		27
Shares released from restriction upon vesting of early-exercised stock options (in shares)		53,483
Exercise of common stock options	$ 276		276
Exercise of common stock options, (in shares)	295,764	295,764
Stock-based compensation	$ 4,550		4,550
Net loss and comprehensive loss	(23,533)			(23,533)
Ending Balance at Mar. 31, 2022	$ 259,540	$ 5	$ 377,137	$ (117,602)
Ending Balance (in shares) at Mar. 31, 2022		39,524,526