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Stock Based Compensation - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Jan. 01, 2020
Jul. 10, 2018
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Jul. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Common stock, shares outstanding     33,602,516   33,602,516   19,683,401  
Unamortized stock-based compensation expense     $ 1,493,686   $ 1,493,686      
Weighted Average Amortization Period         2 years 4 months 13 days      
Employee Stock Option                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock options outstanding (in shares)   2,000,000            
Stock-based compensation expense     $ 194,882 $ 135,393 $ 542,582 $ 344,712    
Options to purchase number of outstanding shares of common stock               2,046,885
Annual percentage increase in outstanding number of common stock 4.00% 4.00%            
Increase in number of shares authorized 787,336              
Common stock reserved for future issuance (in shares) 1,411,481              
2015 Stock Incentive Plan | Employee Stock Option                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock options outstanding (in shares)     10,149   10,149      
2015 Stock Incentive Plan | Restricted Stock | Private Dare                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Common stock, shares outstanding     223,295   223,295      
2014 Employee Stock Purchase Plan                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock-based compensation expense         $ 0 $ 0    
Amended and Restated Two Thousand Fourteen Stock Incentive Plan | Employee Stock Option                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock options outstanding (in shares)     2,783,591   2,783,591   1,889,775  
Common stock reserved for future issuance (in shares)     507,516   507,516