General form of registration statement for all companies including face-amount certificate companies

Summary of Significant Accounting Policies - Going Concern - Additional Information (Detail)

v3.3.1.900
Summary of Significant Accounting Policies - Going Concern - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Nov. 30, 2015
Nov. 30, 2014
Nov. 30, 2015
Nov. 30, 2014
May. 31, 2015
May. 31, 2014
Summary Of Significant Accounting Policies [Line Items]            
Net loss $ (5,264,593) $ (4,983,914) $ (14,159,607) $ (8,363,434) $ (25,088,070) $ (12,431,413)
Working capital deficit         8,687,443  
Accumulated (deficit) $ (85,681,909)   $ (85,681,909)   $ (71,522,302) $ (46,434,232)