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, 2018
May 31, 2018
Liability:    
Derivative liability [1] $ 2,071,199 $ 1,323,732
Total liability [1] 2,071,199 1,323,732
Level 3    
Liability:    
Derivative liability [1] 2,071,199 1,323,732
Total liability [1] $ 2,071,199 $ 1,323,732
[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, 2018 and May 31, 2018.