Quarterly report pursuant to Section 13 or 15(d)

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

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Description of Business, Basis of Presentation and Significant Accounting Policies - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($)
May 31, 2018
Nov. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total $ 572,605 $ 439,322
Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading Securities 71,392 96,600
Available-for-sale securities 501,213 342,722
Total 572,605 439,322
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading Securities 71,392 96,600
Available-for-sale securities 501,213 342,722
Total $ 572,605 $ 439,322