Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation and Warrants - Summary of all warrant activity (Details)

v3.19.3.a.u2
Stock-Based Compensation and Warrants - Summary of all warrant activity (Details) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Stock-Based Compensation and Warrants    
Number of Warrants, Beginning Balance 18,915,851 915,138
Number of Warrants, Granted   18,000,713
Number of Warrants, Exercised 0 0
Number of Warrants, Forfeited (200,852)  
Number of Warrants, Ending Balance 18,714,999 18,915,851
Weighted Average Exercise Price, Beginning Balance $ 3.85 $ 52.50
Weighted Average Exercise Price, Granted   1.38
Weighted Average Exercise Price, Exercised 0 0
Weighted Average Exercise Price, Forfeited 61.25  
Weighted Average Exercise Price, Ending Balance $ 3.24 $ 3.85