Annual report pursuant to Section 13 and 15(d)

Warrants - Schedule of Assumptions (Details)

v3.20.1
Warrants - Schedule of Assumptions (Details) - Warrant
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Dividend yield 0.00% 0.00%
Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate 1.58% 2.46%
Volatility 97.50% 75.00%
Expected life (years) 2 years 1 month 13 days 3 years 1 month 13 days
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate 1.67% 2.51%
Volatility 107.50% 80.00%
Expected life (years) 4 years 3 months 25 days 4 years 11 months 23 days