Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

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Income Taxes - Additional Information (Detail) (USD $)
12 Months Ended
Nov. 30, 2012
Nov. 30, 2011
Nov. 30, 2010
Income Taxes And Tax Related [Line Items]      
Non deductible officer salaries $ 0 $ 0 $ 547,566
Unrealized gains on investments 55,863    
Tax expense on unrealized investments gains 20,616    
Selling, general and administrative expenses [Member]
     
Income Taxes And Tax Related [Line Items]      
Penalties and related interest $ 12,377 $ 3,060