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)
6 Months Ended
Jan. 31, 2019
$ / shares
shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Options Outstanding, Beginning Balance | shares 8,912,720
Options, Granted | shares 2,616,000
Options, Exercised | shares (430,293)
Options, Forfeited/Cancelled | shares (1,943,118)
Options, Expired | shares (7,000)
Options Outstanding, Ending Balance | shares 9,148,309
Options Exercisable, Ending Balance | shares 5,490,692
Weighted Average Exercise Price, Outstanding Beginning Balance | $ / shares $ 1.50
Weighted Average Exercise Price, Granted | $ / shares 0.86
Weighted Average Exercise Price, Exercised | $ / shares 1.32
Weighted Average Exercise Price, Forfeited/Cancelled | $ / shares 1.58
Weighted Average Exercise Price, Expired | $ / shares 5.76
Weighted Average Exercise Price, Outstanding Ending Balance | $ / shares 1.30
Weighted Average Exercise Price, Exercisable Ending Balance | $ / shares $ 1.49