Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Stock-Based Compensation - Summary of Stock Option Activity (Details) - $ / shares
3 Months Ended
Oct. 31, 2018
Oct. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Options Outstanding, Beginning Balance   8,912,720
Options, Granted   568,500
Options, Exercised (23,411) (410,476)
Options, Forfeited/Cancelled   (1,538,541)
Options, Expired   (7,000)
Options Outstanding, Ending Balance 7,525,203 7,525,203
Options Exercisable, Ending Balance 5,305,608 5,305,608
Weighted Average Exercise Price, Outstanding Beginning Balance   $ 1.50
Weighted Average Exercise Price, Granted   1.53
Weighted Average Exercise Price, Exercised   1.31
Weighted Average Exercise Price, Forfeited/Cancelled   1.58
Weighted Average Exercise Price, Expired   5.76
Weighted Average Exercise Price, Outstanding Ending Balance $ 1.49 1.49
Weighted Average Exercise Price, Exercisable Ending Balance $ 1.53 $ 1.53