Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.4.0.3
Stock-Based Compensation (Tables)
9 Months Ended
Apr. 30, 2016
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 months ended April 30, 2016 and 2015:

 

    April 30, 2016     April 30, 2015  
Expected volatility     84.59% - 87.87 %     87.68%-117.51 %
Risk-free interest rate     1.17% - 1.87 %     0.87%-1.86 %
Expected forfeiture rate     0.00 %     0.00 %
Expected dividend yield            
Expected term     5.0 - 10 years       3 - 6.5 years  

 

The following assumptions were used to calculate the fair value of stock-based compensation during the nine months ended April 30, 2016 and 2015:

 

    April 30, 2016     April 30, 2015  
Expected volatility     83.57% - 89.70 %     87.68%-117.51 %
Risk-free interest rate     0.83% - 2.01 %     0.40%-2.13 %
Expected forfeiture rate     0.00 %     0.00 %
Expected dividend yield            
Expected term     2.3 - 10 years       2 - 6.5 years