XML 43 R31.htm IDEA: XBRL DOCUMENT v3.20.2
Stock-Based Compensation - Summary of Recognized Stock-Based Compensation Expense Related to Stock Options Granted to Employees and Directors (Details) - Employee Stock Option - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Stock-based compensation expense $ 194,882 $ 135,393 $ 542,582 $ 344,712
Research and development        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Stock-based compensation expense 60,546 27,081 166,639 78,780
General and administrative        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Stock-based compensation expense $ 134,336 $ 108,312 $ 375,943 $ 265,932