Annual report pursuant to Section 13 and 15(d)

Description of Business and Summary of Significant Accounting Policies - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)

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Description of Business and Summary of Significant Accounting Policies - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)
Nov. 30, 2013
Nov. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities $ 37,910 $ 13,660
Fair Value, Measurements, Recurring [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 37,910 13,660
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities 37,910 13,660
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities      
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading securities