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Share-Based Compensation - Valuation Assumption (Details) - 2021 Plan
9 Months Ended
Sep. 30, 2022
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Weighted-average grant-date fair value of options ( in dollar per share) $ 0.98
Stock options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk-free interest rate 1.74%
Term (years) 6 years 2 months 12 days
Volatility 61.19%
Expected dividend 0.00%