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Net Loss Per Share - Antidilutive Shares (Details)
9 Months Ended 12 Months Ended
Sep. 30, 2022
shares
Sep. 30, 2021
shares
Dec. 31, 2021
shares
Dec. 31, 2020
shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 34,117,671 33,867,263 34,175,113 30,720,703
Conversion ratio 1   1  
Liquidity price of SAFE and SAFE warrants 100.00%   100.00%  
Liquidity price of SAFE and SAFE warrants, condition one 90.00%   90.00%  
Redeemable convertible preferred stock (if converted)        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 29,521,810 29,521,810 29,521,810 25,729,542
Options        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 3,790,978 3,540,570 3,848,420 4,283,200
RSAs        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 579,660 579,660 579,660 324,680
Warrants        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive shares 225,223 225,223 225,223 383,281