Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation (Details)

v3.20.2
Stock Based Compensation (Details) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 18, 2020
Feb. 29, 2020
Jan. 01, 2020
May 18, 2016
Apr. 05, 2016
Jun. 30, 2020
Mar. 31, 2020
Feb. 29, 2020
Feb. 28, 2020
Aug. 31, 2019
May 31, 2018
Sep. 30, 2020
Jun. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Annual share reserve increase (as a percent)                                 4.00%
Total stock-based compensation                       $ 1,447,531   $ 818,793 $ 5,349,428 $ 1,942,196  
Research and development                                  
Total stock-based compensation                       384,041   176,261 1,156,317 354,347  
General and administrative                                  
Total stock-based compensation                       971,558   473,905 3,959,156 1,139,241  
Sales and marketing                                  
Total stock-based compensation                       91,932   57,168 233,955 134,819  
Total stock-based compensation, continuing operations                                  
Total stock-based compensation                       1,447,531   707,334 5,349,428 1,628,407  
Total stock-based compensation, discontinued operations                                  
Total stock-based compensation                       0   $ 111,459 0 $ 313,789  
Service Based Options                                  
Total stock-based compensation                       $ 1,100,000     $ 3,500,000    
Option Activity, Number of shares                                  
Balance, beginning of period (in shares)     4,180,606                       4,180,606    
Granted (in shares)                             5,630,953    
Options exercises in period (in shares)                             (50,239)    
Forfeitures (in shares)                             (629,300)    
Expired (in shares)                             (583,758)    
Balance, end of period (in shares)                       8,548,262     8,548,262   4,180,606
Exercisable (in shares)                       2,729,880     2,729,880    
Option Activity, Weighted-average exercise price                                  
Beginning of period (in dollars per share)     $ 4.80                       $ 4.80    
Granted (in dollars per share)                             3.44    
Exercised (in dollars per share)                             1.84    
Forfeitures (in dollars per share)                             3.26    
Expired (in dollars per share)                             5.42    
End of period (in dollars per share)                       $ 3.99     3.99   $ 4.80
Exercisable (in dollars per share)                       4.45     4.45    
Option Activity, Fair value of options granted                                  
Beginning of period (in dollars per share)     $ 2.67                       2.67    
Granted (in dollars per share)                             2.19    
Exercised (in dollars per share)                             1.22    
Forfeited (in dollars per share)                             1.95    
Expired (in dollars per share)                             3.02    
End of period (in dollars per share)                       2.39     2.39   $ 2.67
Exercisable (in dollars per share)                       $ 2.49     $ 2.49    
Option Activity, Weighted-average remaining contractual term (in years)                                  
Balance                             7 years 10 months 24 days   7 years 10 months 24 days
Exercisable                             4 years 10 months 24 days    
Compensation committee of annual value                 $ 414,432                
Outstanding intrinsic value                       $ 500,000     $ 500,000    
Exercisable aggregate intrinsic value                       $ 400,000     $ 400,000    
Options vested (in shares)                             1,135,129    
Weighted average exercise price (in dollars per share)                       $ 4.58     $ 4.58    
Fair value of options vested in period                             $ 2,900,000    
Compensation not yet recognized                       $ 10,900,000     $ 10,900,000    
Period for recognition                             3 years 1 month 6 days    
Fair value assumptions                                  
Expected annual dividend yield                             0.00%    
Expected volatility, minimum                             69.90%    
Expected volatility, maximum                             79.00%    
Risk-free interest rate, minimum                             0.19%    
Risk-free interest rate, maximum                             1.48%    
Market Based Options                                  
Total stock-based compensation                       $ 300,000     $ 900,000    
Option Activity, Number of shares                                  
Balance, beginning of period (in shares)     300,000                       300,000    
Granted (in shares)                             1,000,000    
Forfeitures (in shares)                         (300,000)   (300,000)    
Balance, end of period (in shares)                       1,000,000     1,000,000   300,000
Exercisable (in shares)                       500,000     500,000    
Option Activity, Weighted-average exercise price                                  
Beginning of period (in dollars per share)     $ 4.98                       $ 4.98    
Granted (in dollars per share)                             3.29    
End of period (in dollars per share)                       $ 3.29     $ 3.29   $ 4.98
Option Activity, Weighted-average remaining contractual term (in years)                                  
Balance                             9 years 8 months 12 days   9 years 4 months 24 days
Granted                             9 years 8 months 12 days    
Exercisable aggregate intrinsic value                       $ 0     $ 0    
Compensation not yet recognized                       $ 400,000     $ 400,000    
Period for recognition                             4 months 24 days    
Compensation expense, forfeitures                             $ 400,000    
Restricted Stock Awards                                  
Award vesting period                             4 years    
Total stock-based compensation                             $ 800,000    
Non-vested RSUs Outstanding                                  
Unvested RSUs at December 31, 2019 (in shares)     267,500                       267,500    
Vested (in shares)                             (111,667)    
Unvested RSUs at June 30, 2020 (in shares)                       155,833     155,833   267,500
Weighted average grant date fair value                                  
Unvested RSUs at December 31, 2019 (in dollars per share)     $ 4.92                       $ 4.92    
Vested (in dollars per share)                             4.93    
Unvested RSUs at June 30, 2020 (in dollars per share)                       $ 4.91     $ 4.91   $ 4.92
Employee Stock Purchase Plan (ESPP)                                  
Total stock-based compensation                       $ 100,000     $ 200,000    
Minimum | Service Based Options                                  
Fair value assumptions                                  
Expected term of options (in years)                             1 year 9 months    
Maximum | Service Based Options                                  
Fair value assumptions                                  
Expected term of options (in years)                             6 years 3 months    
2016 Plan                                  
Increase in number of shares reserved for issuance (in shares)       600,000             1,400,000            
Common stock remaining for future issuance (in shares)       464,476               3,279,035     3,279,035    
2016 Plan | Equity Option                                  
Award expiration period                             10 years    
2016 Second Amended Plan                                  
Increase in number of shares reserved for issuance (in shares)                   850,000              
2016 Third Amended Plan                                  
Increase in number of shares reserved for issuance (in shares)           2,014,400                      
Employee Stock Purchase Plan (ESPP)                                  
Common stock remaining for future issuance (in shares)                       1,504,388     1,504,388    
Weighted average grant date fair value                                  
Purchase price of common stock, percentage         85.00%                        
Maximum portion of earning an employee may contribute to the ESPP Plan         15.00%                        
Maximum annual amount of fair market value of the Company's common stock that a participant may accrue the rights to purchase         $ 25,000                        
Shares of common stock for future issuance (in shares)         500,000                        
Automatic increase to shares authorized as percentage of outstanding stock at end of preceding year         1.00%                        
Increase in shares available (in shares)     443,842                            
Director | 2016 Plan | Minimum | Equity Option                                  
Award vesting period                             1 year    
Director | 2016 Plan | Maximum | Equity Option                                  
Award vesting period                             3 years    
Executive Officer | Service Based Options                                  
Option Activity, Number of shares                                  
Granted (in shares)               2,400,000                  
Chief Executive Officer | Service Based Options                                  
Option Activity, Weighted-average remaining contractual term (in years)                                  
Annual base salary   $ 450,000         $ 35,568                    
Chairman of the Board                                  
Option Activity, Number of shares                                  
Granted (in shares) 1,000,000                                
Chairman of the Board | Tranche One                                  
Option Activity, Weighted-average remaining contractual term (in years)                                  
Options vested (in shares) 500,000                                
Options vested, exercise price (in dollars per share) $ 2.51                                
Chairman of the Board | Tranche Two                                  
Option Activity, Weighted-average remaining contractual term (in years)                                  
Options vested (in shares) 250,000                                
Premium on stock price, threshold percentage 50.00%                                
Chairman of the Board | Tranche Three                                  
Option Activity, Weighted-average remaining contractual term (in years)                                  
Options vested (in shares) 250,000                                
Premium on stock price, threshold percentage 75.00%                                
Employee | 2016 Plan | Minimum | Equity Option                                  
Award vesting period                             3 years    
Employee | 2016 Plan | Maximum | Equity Option                                  
Award vesting period                             4 years