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Stock-Based Compensation - Share-based compensation expense (Details) - USD ($)
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense $ 897,650 $ 182,225
Cost of service    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense 4,630 22,515
Research and development    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense 432,719 105,703
General and administrative    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense $ 460,301 $ 54,007