Quarterly report pursuant to Section 13 or 15(d)

Fair Value (Details 2)

v3.19.3
Fair Value (Details 2)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Expected volatility 110.00% 110.00% 110.00% 110.00%
Expected dividends 0.00% 0.00% 0.00% 0.00%
Minimum [Member]        
Risk-free interest rate 1.55% 2.12% 1.17% 1.73%
Expected term (years) 1 month 9 days 29 days 7 days 2 months 30 days
Maximum [Member]        
Risk-free interest rate 1.91% 2.44% 2.91% 2.91%
Expected term (years) 5 years 4 years 4 months 28 days 5 years 4 years 9 months 3 days