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Loans Payable - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
Dec. 31, 2020
May 31, 2020
Sep. 30, 2022
Oct. 31, 2018
Apr. 30, 2017
Short Term Debt [Line Items]          
Proceeds from issuance of debt   $ 15.0      
Bridge Loan          
Short Term Debt [Line Items]          
Debt Instrument, fair value $ 2.1        
Proceeds from issuance of debt   $ 1.8      
Debt instrument, interest rate   10.00%      
Debt conversion, original debt, amount 1.8        
Proceeds from debt payable in different currency, description     payable in renminbi (RMB) at an established USD/RMB exchange rate, based on an average of the previous five working days before May 8, 2020.    
Debt conversion to stock, aggregate debt plus accrued interest 1.9        
Conversion of 2020 convertible promissory notes to Series C convertible preferred stock 1.8        
Debt conversion, accrued interest, amount $ 0.1        
Series C convertible preferred stock          
Short Term Debt [Line Items]          
Convertible preferred stock, shares issued 7,500,665        
Series C convertible preferred stock | Bridge Loan          
Short Term Debt [Line Items]          
Debt conversion, converted instrument, shares 167,159        
Series A convertible preferred stock          
Short Term Debt [Line Items]          
Convertible preferred stock, shares issued         2,089,285
Series A convertible preferred stock | LAV Affiliate          
Short Term Debt [Line Items]          
Convertible preferred stock, shares issued 767,857        
Series B convertible preferred stock          
Short Term Debt [Line Items]          
Convertible preferred stock, shares issued       2,384,195  
Series B convertible preferred stock | LAV Affiliate          
Short Term Debt [Line Items]          
Convertible preferred stock, shares issued 216,450        
2020 Notes          
Short Term Debt [Line Items]          
Debt instrument, interest rate   10.00%      
Debt conversion, original debt, amount   $ 15.9      
Debt conversion to stock, aggregate debt plus accrued interest $ 15.9        
Conversion of 2020 convertible promissory notes to Series C convertible preferred stock   $ 15.9      
2020 Notes | Series C convertible preferred stock          
Short Term Debt [Line Items]          
Debt conversion, converted instrument, shares 1,366,820