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 6 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
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Annual share reserve increase (as a percent)                               4.00%
Total stock-based compensation                       $ 2,785,574 $ 526,709 $ 3,901,897 $ 1,123,402  
Research and development                                
Total stock-based compensation                       390,506 120,709 772,275 178,085  
General and administrative                                
Total stock-based compensation                       2,307,998 196,211 2,987,598 665,336  
Sales and marketing                                
Total stock-based compensation                       87,070 56,823 142,024 77,651  
Total stock-based compensation, continuing operations                                
Total stock-based compensation                       2,785,574 373,743 3,901,897 921,072  
Total stock-based compensation, discontinued operations                                
Total stock-based compensation                       0 $ 152,966 0 $ 202,330  
Service Based Options                                
Total stock-based compensation                       $ 1,700,000   $ 2,500,000    
Option Activity, Number of shares                                
Balance, beginning of period (in shares)     4,180,606                     4,180,606    
Granted (in shares)                           5,165,956    
Options exercises in period (in shares)                           (50,239)    
Forfeitures (in shares)                           (629,300)    
Expired (in shares)                           (303,758)    
Balance, end of period (in shares)           8,363,265           8,363,265   8,363,265   4,180,606
Exercisable (in shares)           2,719,729           2,719,729   2,719,729    
Option Activity, Weighted-average exercise price                                
Beginning of period (in dollars per share)     $ 4.80                     $ 4.80    
Granted (in dollars per share)                           3.52    
Exercised (in dollars per share)                           1.84    
Forfeitures (in dollars per share)                           3.26    
Expired (in dollars per share)                           5.30    
End of period (in dollars per share)           $ 4.13           $ 4.13   4.13   $ 4.80
Exercisable (in dollars per share)           4.67           4.67   4.67    
Option Activity, Fair value of options granted                                
Beginning of period (in dollars per share)     $ 2.67                     2.67    
Granted (in dollars per share)                           2.24    
Exercised (in dollars per share)                           1.22    
Forfeited (in dollars per share)                           1.95    
Expired (in dollars per share)                           3.03    
End of period (in dollars per share)           2.45           2.45   2.45   $ 2.67
Exercisable (in dollars per share)           $ 2.60           $ 2.60   $ 2.60    
Option Activity, Weighted-average remaining contractual term (in years)                                
Balance                           7 years 9 months 18 days   7 years 10 months 24 days
Exercisable                           5 years 1 month 6 days    
Granted (in shares)                           5,165,956    
Compensation committee of annual value                 $ 414,432              
Outstanding intrinsic value           $ 700,000           $ 700,000   $ 700,000    
Exercisable aggregate intrinsic value           $ 600,000           $ 600,000   $ 600,000    
Options vested (in shares)                           844,978    
Weighted average exercise price (in dollars per share)           $ 4.96           $ 4.96   $ 4.96    
Fair value of options vested in period                           $ 2,300,000    
Compensation not yet recognized           $ 11,100,000           $ 11,100,000   $ 11,100,000    
Period for recognition                           3 years 2 months 12 days    
Fair value assumptions                                
Expected annual dividend yield                           0.00%    
Expected volatility, minimum                           69.90%    
Expected volatility, maximum                           79.90%    
Risk-free interest rate, minimum                           0.19%    
Risk-free interest rate, maximum                           1.48%    
Market Based Options                                
Total stock-based compensation                       $ 500,000   $ 600,000    
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   1,000,000   300,000
Exercisable (in shares)           500,000           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   $ 3.29   $ 4.98
Option Activity, Weighted-average remaining contractual term (in years)                                
Balance                           10 years   9 years 4 months 24 days
Granted                           10 years    
Granted (in shares)                           1,000,000    
Exercisable aggregate intrinsic value           $ 45,000           $ 45,000   $ 45,000    
Compensation not yet recognized           $ 700,000           700,000   $ 700,000    
Period for recognition                           8 months 12 days    
Compensation expense, forfeitures                       400,000   $ 400,000    
Restricted Stock Awards                                
Award vesting period                           4 years    
Total stock-based compensation                       $ 600,000   $ 800,000    
Option Activity, Weighted-average remaining contractual term (in years)                                
Period for recognition                           2 years    
Non-vested RSUs Outstanding                                
Unvested RSUs at December 31, 2019 (in shares)     267,500                     267,500    
Granted (in shares)                           0    
Vested (in shares)                           (111,667)    
Unvested RSUs at June 30, 2020 (in shares)           155,833           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    
Granted (in dollars per share)                              
Vested (in dollars per share)                           4.93    
Unvested RSUs at June 30, 2020 (in dollars per share)           $ 4.91           $ 4.91   $ 4.91   $ 4.92
Unrecognized compensation cost           $ 43,202           $ 43,202   $ 43,202    
Employee Stock Purchase Plan (ESPP)                                
Total stock-based compensation                       $ 54,590   $ 100,000    
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   3,464,032           3,464,032   3,464,032    
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   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                
Option Activity, Weighted-average remaining contractual term (in years)                                
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                              
Option Activity, Weighted-average remaining contractual term (in years)                                
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