Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid In Capital [Member]	Accumulated Deficit [Member]	Convertible Preferred Stock [Member]	Convertible Preferred Stock [Member] Series A-1 Convertible Preferred Stock [Member]	Convertible Preferred Stock [Member] Series B-1 Convertible Preferred Stock [Member]
Convertible preferred stock, Beginning Balance (in shares) at Dec. 31, 2019					32,198,879
Convertible preferred stock, Beginning Balance at Dec. 31, 2019					$ 30,062
Beginning Balance (in shares) at Dec. 31, 2019		1,901,656
Beginning Balance at Dec. 31, 2019	$ (8,243)	$ 1		$ (8,244)
Shares released from restriction upon vesting of early-exercised stock options (in shares)		267,894
Shares released from restriction upon vesting of early-exercised stock options	137	$ 1	$ 136
Vesting of shares of restricted common stock		469,476
Stock-based compensation	257		257
Net loss and comprehensive loss	(18,854)			(18,854)
Convertible preferred stock, Ending Balance (in shares) at Dec. 31, 2020					32,198,879
Convertible preferred stock, Ending Balance at Dec. 31, 2020					$ 30,062
Ending Balance (in shares) at Dec. 31, 2020		2,639,026
Ending Balance at Dec. 31, 2020	(26,703)	$ 2	393	(27,098)
Shares released from restriction upon vesting of early-exercised stock options (in shares)		344,179
Shares released from restriction upon vesting of early-exercised stock options	203		203
Vesting of shares of restricted common stock		469,493
Issuance of Series convertible preferred stock, (in shares)						21,944,874	32,958,612
Issuance of Series convertible preferred stock						$ 21,004	$ 92,630
Issuance of Series B-2 convertible preferred stock from convertible note (in shares)					2,805,850
Issuance of Series B-2 convertible preferred stock from convertible note					$ 7,917
Initial public offering, net of issuance costs, (in shares)		13,953,332
Initial public offering, net of issuance costs	190,737	$ 1	190,736
Conversion of convertible preferred stock into common stock, (in shares)		21,634,898			(89,908,215)
Conversion of convertible preferred stock into common stock	151,613	$ 2	151,611		$ (151,613)
Issuance of common stock for Employee Stock Purchase Plan, (in shares)		16,606
Issuance of common stock for Employee Stock Purchase Plan	$ 212		212
Exercise of common stock options, (in shares)	227,333	117,745
Exercise of common stock options	$ 98		98
Stock-based compensation	29,031		29,031
Net loss and comprehensive loss	(66,971)			(66,971)
Convertible preferred stock, Ending Balance (in shares) at Dec. 31, 2021					0
Convertible preferred stock, Ending Balance at Dec. 31, 2021					$ 0
Ending Balance (in shares) at Dec. 31, 2021		39,175,279
Ending Balance at Dec. 31, 2021	$ 278,220	$ 5	$ 372,284	$ (94,069)