Quarterly report pursuant to Section 13 or 15(d)

Activity Related to Notes (Detail)

v2.4.1.9
Activity Related to Notes (Detail) (USD $)
6 Months Ended 12 Months Ended
Nov. 30, 2014
Nov. 30, 2013
May 31, 2014
Debt Instrument [Line Items]      
Face amount of notes $ 4,271,250us-gaap_DebtInstrumentCarryingAmount   $ 7,221,250us-gaap_DebtInstrumentCarryingAmount
Unamortized discount (888,226)us-gaap_DebtInstrumentUnamortizedDiscount   (1,932,566)us-gaap_DebtInstrumentUnamortizedDiscount
Repayments   (250,000)us-gaap_RepaymentsOfConvertibleDebt (500,000)us-gaap_RepaymentsOfConvertibleDebt
Conversions (1,175,000)us-gaap_DebtConversionConvertedInstrumentAmount1 (2,359,000)us-gaap_DebtConversionConvertedInstrumentAmount1 (2,450,000)us-gaap_DebtConversionConvertedInstrumentAmount1
Total carrying value of Notes 2,208,024us-gaap_LongTermDebt   2,338,684us-gaap_LongTermDebt
Short-term portion of Notes (2,118,654)us-gaap_ConvertibleNotesPayableCurrent    
Long-term portion of Notes 89,370us-gaap_ConvertibleLongTermNotesPayable   2,338,684us-gaap_ConvertibleLongTermNotesPayable
Total carrying value of Notes $ 2,208,024us-gaap_LongTermDebt   $ 2,338,684us-gaap_LongTermDebt