Quarterly report pursuant to Section 13 or 15(d)

Warrants - Schedule of Assumptions (Details)

v3.20.1
Warrants - Schedule of Assumptions (Details) - Warrant
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
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 0.20% 1.60%
Volatility 111.40% 97.50%
Expected life (years) 1 year 10 months 24 days 2 years 1 month 6 days
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate 1.50% 1.70%
Volatility 120.60% 107.50%
Expected life (years) 5 years 6 months 4 years 3 months 18 days