Quarterly report pursuant to Section 13 or 15(d)

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

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Liability Measured At Fair Value on Recurring Basis by Level within Fair Value Hierarchy (Detail) - USD ($)
Aug. 31, 2017
 [1]
May 31, 2017
Liability:    
Derivative liability $ 3,377,333 $ 3,014,667
Total liability 3,377,333 3,014,667
Level 3    
Liability:    
Derivative liability 3,377,333 3,014,667
Total liability $ 3,377,333 $ 3,014,667
[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, 2017, and May 31, 2017.