Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation and Warrants (Details)

v3.19.3.a.u2
Stock-Based Compensation and Warrants (Details) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Exercise price $ 0.42 $ 0.69
Expected dividends 0.00% 0.00%
Expected volatility 84.00% 86.00%
Risk -free interest rate 1.61% 2.75%
Expected life of option 4 years 6 months 4 years
Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected volatility   86.00%