Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.19.2
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2019
Share-based Payment Arrangement [Abstract]  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions

The following table provides the weighted average assumptions used in determining the fair value of the stock option awards granted during the six month periods ended June 30, 2019 and 2018.

 

    Six Months Ended  
    June 30, 2019     June 30, 2018  
      (unaudited)  
Risk-free interest rate     2.51 %     2.65 %
Expected life     6.0 years       6.0 years  
Expected volatility     127.81 %     126.93 %
Dividend yield     -       -