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Convertible Preferred Stock and Stockholders' Deficit - Summary of Restricted Shares of Common Stock and Unvested Stock Liability (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Liabilities And Stockholders Equity [Line Items]    
Beginning Balance, Unvested stock liability $ 145 $ 1
Shares early exercised, unvested stock liability   145
Vested shares, Unvested stock liability (122) 1
Ending Balance, Unvested stock liability $ 23 $ 145
Restricted Shares    
Liabilities And Stockholders Equity [Line Items]    
Beginning Balance 646,953 811,268
Shares early exercised   153,373
Vested shares (407,127) (317,688)
Ending Balance 239,826 646,953