Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Schedule of Assumptions Used to Calculate Fair Value of Stock Based Compensation (Details)

v3.8.0.1
Stock-Based Compensation - Schedule of Assumptions Used to Calculate Fair Value of Stock Based Compensation (Details)
9 Months Ended
Apr. 30, 2018
Risk-free interest rate, minimum 1.66%
Risk-free interest rate, maximum 2.81%
Expected volatility, minimum 73.30%
Expected volatility, maximum 92.00%
Dividend yield 0.00%
Minimum [Member]  
Expected term 5 years
Maximum [Member]  
Expected term 6 years 6 months