Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.7.0.1
Stock-Based Compensation (Tables)
9 Months Ended
Apr. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Assumptions Used to Calculate Fair Value of Stock Based Compensation

The following assumptions were used to calculate the fair value of stock-based compensation during the three-month periods ended April 30, 2017 and 2016:

 

    April 30, 2017     April 30, 2016  
Expected volatility     71.91% - 124.41%       84.59% - 87.87%  
Risk-free interest rate     1.42% - 2.39%       1.17% - 1.87%  
Expected forfeiture rate     0%       0%  
Expected dividend yield            
Expected term     2.87 - 10 years       5 - 10 years  

 

The following assumptions were used to calculate the fair value of stock-based compensation during the nine-month periods ended April 30, 2017 and 2016:

 

    April 30, 2017     April 30, 2016  
Expected volatility     71.91% - 124.47%       83.57% - 89.70%  
Risk-free interest rate     0.82% - 2.52%       0.83% - 2.01%  
Expected forfeiture rate     0%       0%  
Expected dividend yield            
Expected term     2.34 - 10 years       2.3 - 10 years