Quarterly report pursuant to Section 13 or 15(d)

Derivative Liability - Additional Information (Detail)

v2.4.1.9
Derivative Liability - Additional Information (Detail) (USD $)
3 Months Ended 9 Months Ended
Feb. 28, 2015
Feb. 28, 2015
Derivative [Line Items]    
Change in fair value of derivative liability $ 1,261,545us-gaap_GainLossOnDerivativeInstrumentsNetPretax $ 455,970us-gaap_GainLossOnDerivativeInstrumentsNetPretax