Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Narrative (Details)

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Subsequent Events - Narrative (Details) - USD ($)
1 Months Ended 12 Months Ended
Feb. 04, 2020
Jan. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Feb. 19, 2019
Granted (in shares)     648,550 2,220,000  
Granted, weighted average exercise price (in dollars per share)     $ 6.03 $ 1.75  
Share price (in dollars per share)         $ 4.87
Employee Stock Option          
Expiration period (in years)   10 years 10 years 10 years  
Fair value of options   $ 456,961 $ 2,762,693 $ 2,694,567  
Discount rate   2.53%   2.77%  
Expected life (in years)   5 years 3 months 7 days   6 years 3 months  
Expected volatility rate   84.30%      
Expected dividends   $ 0 $ 0 $ 0  
Certain Individuals          
Granted (in shares)   401,750 246,800    
Granted, weighted average exercise price (in dollars per share)   $ 1.75 $ 13.00    
Subsequent Event | Employee Stock Option          
Expiration period (in years) 10 years        
Award vesting rights, percentage 25.00%        
Vesting period (in years) 4 years        
Fair value of options $ 3,193,468        
Discount rate 1.42%        
Expected life (in years) 6 years 3 months        
Expected volatility rate 83.12%        
Expected dividends $ 0        
Share price (in dollars per share) $ 11.71        
Subsequent Event | Certain Individuals          
Granted (in shares) 381,800        
Granted, weighted average exercise price (in dollars per share) $ 11.71