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Stock Option Plan - Schedule of stock-based compensation expense for stock options (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Options        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Stock-based compensation $ 548,652 $ 810,738 $ 1,370,758 $ 1,063,008
Restricted stock        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Stock-based compensation 1,187,254 258,137 1,801,093 267,972
Options and Restricted Stock        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Stock-based compensation $ 1,735,906 $ 1,068,875 $ 3,171,851 $ 1,330,980