Annual report pursuant to Section 13 and 15(d)

Share Based Payments and Stock Options (Details 1)

v3.19.1
Share Based Payments and Stock Options (Details 1)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Expected dividends
Expected term 2 years 6 months 2 years 6 months
Risk-free rate 1.64%  
Minimum [Member]    
Expected volatility 72.91% 73.28%
Risk-free rate   1.64%
Maximum [Member]    
Expected volatility 90.81% 96.92%
Risk-free rate   1.70%