Quarterly report pursuant to Section 13 or 15(d)

Share-based Compensation (Details 1)

v3.20.2
Share-based Compensation (Details 1)
6 Months Ended
Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected dividend yield
Expected stock volatility 68.35%
Risk-free interest rate 2.44%
Expected life 3 years