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Stock-Based Compensation - stock option activity (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Number of options    
Outstanding at the beginning (in shares) 1,801,263  
Granted (in shares) 1,452,462 343,169
Exercised (in shares) (117,847)  
Repurchased (in shares) (276,334)  
Outstanding at the end (in shares) 2,859,544 1,801,263
Vested and exercisable (in shares) 1,102,543  
Vested and expected to vest (in shares) 2,859,544  
Weighted Average Exercise Price per Share    
Weighted Average Exercise Price per Share Outstanding at the beginning (in dollars per share) $ 3.01  
Weighted Average Exercise Price per Share Granted (in dollars per share) 10.07  
Weighted Average Exercise Price per Share Exercised (in dollars per share) 3.01  
Weighted Average Exercise Price per Share Repurchased (in dollars per share) 3.58  
Weighted Average Exercise Price per Share Outstanding at the end (in dollars per share) 6.55 $ 3.01
Weighted Average Exercise Price per Share Vested and Exercisable (in dollars per share) 3.01  
Weighted Average Exercise Price per Share Vested and Expected to Vest exercisable (in dollars per share) $ 6.55  
Weighted Average Remaining Contractual Contractual Term    
Weighted Average Remaining Contractual Term (in years) 8 years 3 months 18 days  
Weighted Average Remaining Contractual Term, Vested and exercisable (in Years) 7 years 1 month 20 days  
Weighted Average Remaining Contractual Term, Vested and expected to vest (in Years) 8 years 3 months 18 days  
Aggregate Intrinsic Value    
Aggregate Intrinsic Value Outstanding $ 27,615,466  
Aggregate Intrinsic Value Vested and exercisable 14,507,723  
Aggregate Intrinsic Value Vested and expected to vest $ 27,615,466