Annual report pursuant to Section 13 and 15(d)

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

v3.20.1
Stock Options, Warrants and Restricted Common Stock (Schedule of Award Activity) (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Stock Incentive Plan [Member]      
Shares Underlying Options/Warrants      
Outstanding, beginning 62,000 119,533  
Granted 62,000  
Exercised (19,533)  
Forfeited (50,000) (100,000)  
Outstanding, ending 12,000 62,000 119,533
Exercisable 12,000    
Weighted Average Exercise Price      
Outstanding, beginning $ 15.71 $ 9.02  
Granted 15.71  
Exercised 4.02  
Forfeited 18.50 10.00  
Outstanding, ending 4.09 $ 15.71 $ 9.02
Exercisable $ 4.09    
Weighted Average Remaining Contractual Term      
Outstanding 3 years 8 months 12 days 9 years 2 months 12 days  
Exercisable 3 years 8 months 12 days    
Aggregate Intrinsic Value      
Outstanding    
Exercisable    
Nonqualified [Member]      
Shares Underlying Options/Warrants      
Outstanding, beginning 1,671,113 1,944,895  
Granted 1,908,144  
Exercised   (113,009)  
Forfeited (5,000) (160,773)  
Outstanding, ending 3,574,257 1,671,113 1,944,895
Exercisable 3,574,257    
Weighted Average Exercise Price      
Outstanding, beginning $ 39.47 $ 35.06  
Granted 1.94  
Exercised   3.50  
Forfeited 7.90 10.88  
Outstanding, ending 19.48 $ 39.47 $ 35.06
Exercisable $ 19.48    
Weighted Average Remaining Contractual Term      
Outstanding 2 years 10 months 25 days 2 years 2 years 8 months 12 days
Issued 5 years 2 months 12 days    
Exercisable 2 years 10 months 25 days    
Aggregate Intrinsic Value      
Outstanding $ 6,135,000
Exercisable