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Stock-Based Compensation - Options, Assumptions Under Black-Scholes (Details) - Board members
9 Months Ended
Sep. 30, 2022
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected volatility 71.47%
Expected volatility 82.05%
Risk-free interest rate 1.02%
Risk-free interest rate 2.47%
Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected term 1 year 6 months
Market value of common stock (in dollars per share) $ 17.47
Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected term 2 years 3 months
Market value of common stock (in dollars per share) $ 23.42