Quarterly report pursuant to Section 13 or 15(d)

Stock Options, Warrants and Restricted Common Stock (Schedule of Award Activity) (Details)

v3.20.2
Stock Options, Warrants and Restricted Common Stock (Schedule of Award Activity) (Details) - Other common stock purchase options [Member] - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Shares Underlying Options/Warrants    
Outstanding, beginning 3,574,257  
Exercised (200,000)  
Forfeited (20,000)  
Outstanding, ending 3,554,257 3,574,257
Exercisable 3,554,257  
Weighted Average Exercise Price    
Outstanding, beginning $ 19.48  
Exercised 1.94  
Forfeited 3.50  
Outstanding, ending 20.62 $ 19.48
Exercisable $ 20.62  
Weighted Average Remaining Contractual Term (Years)    
Outstanding 2 years 1 month 6 days 2 years 10 months 24 days
Exercisable 2 years 1 month 6 days  
Aggregate Intrinsic Value    
Outstanding $ 1,298,189
Exercisable $ 1,298,189