Quarterly report pursuant to Section 13 or 15(d)

Summary of Fair Value Derivative Liability and Linked Common Shares (Detail)

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Summary of Fair Value Derivative Liability and Linked Common Shares (Detail) (USD $)
Feb. 28, 2015
Feb. 06, 2015
Sep. 26, 2014
Derivative [Line Items]      
Total derivative liability $ 714,294us-gaap_DerivativeLiabilities [1] $ 403,266us-gaap_DerivativeLiabilities $ 767,038us-gaap_DerivativeLiabilities
Shares indexed to derivative liability 3,500,000us-gaap_ForwardContractIndexedToIssuersEquityIndexedShares 1,500,000us-gaap_ForwardContractIndexedToIssuersEquityIndexedShares 2,000,000us-gaap_ForwardContractIndexedToIssuersEquityIndexedShares
[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 February 28, 2015 and May 31, 2014.