Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of Stock Option Activity (Details)

v3.8.0.1
Stock-Based Compensation - Summary of Stock Option Activity (Details)
9 Months Ended
Apr. 30, 2018
$ / shares
shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Options Outstanding, Beginning Balance | shares 3,639,613
Options Exercisable, Beginning Balance | shares 1,990,521
Options, Granted | shares 5,614,000
Options, Exercised | shares (180,393)
Options, Forfeited/Cancelled | shares (584,650)
Options Outstanding, Ending Balance | shares 8,488,570
Options Exercisable, Ending Balance | shares 4,161,589
Weighted Average Exercise Price, Outstanding Beginning Balance | $ / shares $ 1.94
Weighted Average Exercise Price, Exercisable Beginning Balance | $ / shares 2.29
Weighted Average Exercise Price, Granted | $ / shares 1.37
Weighted Average Exercise Price, Exercised | $ / shares 1.25
Weighted Average Exercise Price, Forfeited/Cancelled | $ / shares 3.00
Weighted Average Exercise Price, Outstanding Ending Balance | $ / shares 1.50
Weighted Average Exercise Price, Exercisable Ending Balance | $ / shares $ 1.59