Quarterly report pursuant to Section 13 or 15(d)

Liability Measured At Fair Value on Recurring Basis by Level within Fair Value Hierarchy (Parenthetical) (Detail)

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Liability Measured At Fair Value on Recurring Basis by Level within Fair Value Hierarchy (Parenthetical) (Detail) - USD ($)
Aug. 31, 2015
May. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Liabilities fair value [1]   $ 2,008,907
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets fair value $ 0 0
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Liabilities fair value $ 0 $ 0
[1] The Company did not have any assets or liabilities measured at fair value using Level 1 or 2 of the fair value hierarchy as of August 31, 2015 and May 31, 2015.