Quarterly report pursuant to Section 13 or 15(d)

Share Based Compensation - Summary of Share-based Compensation Expense (Details)

v3.7.0.1
Share Based Compensation - Summary of Share-based Compensation Expense (Details) - USD ($)
3 Months Ended
Jan. 31, 2017
Jan. 31, 2016
Share-based compensation expense $ 5,110,425 $ 9,529,008
Research and Development [Member]    
Share-based compensation expense 1,222,483 5,106,640
General and Administrative [Member]    
Share-based compensation expense $ 3,887,942 $ 4,422,368