Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
Stock-Based Compensation and Warrants - Summary of all warrant activity (Details) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Stock-Based Compensation and Warrants    
Number of Warrants, Beginning Balance 18,714,999 18,915,851
Number of Warrants, Granted   0
Number of Warrants, Exercised 0 0
Number of Warrants, Forfeited (714,286) (200,852)
Number of Warrants, Ending Balance 18,000,713 18,714,999
Weighted Average Exercise Price, Beginning Balance $ 3.24 $ 3.85
Weighted Average Exercise Price, Granted   0.00
Weighted Average Exercise Price, Exercised 0 0
Weighted Average Exercise Price, Forfeited 50.05 61.25
Weighted Average Exercise Price, Ending Balance $ 0.69 $ 3.24