Annual report pursuant to Section 13 and 15(d)

Investments in Affiliates - Additional Information (Detail)

v2.4.0.8
Investments in Affiliates - Additional Information (Detail) (USD $)
12 Months Ended
Nov. 30, 2013
Installment
Nov. 30, 2012
Investments In Affiliates [Line Items]    
Value of treasury stock $ 2,926,123 $ 2,187,505
Saneron [Member]
   
Investments In Affiliates [Line Items]    
Goodwill 684,000 684,000
Goodwill Impairment 0 0
Equity in losses of Saneron operations 154,000 155,000
Value of treasury stock 485,000 485,000
Loan Saneron in quarterly payments an aggregate amount 300,000  
Initial loan amount 150,000  
Additional quarterly payments 4  
Quarterly installments per quarter 37,500  
Date of maturity 5 years  
First initial quarterly payment 37,500  
Saneron [Member] | Additional Loan [Member]
   
Investments In Affiliates [Line Items]    
Initial loan amount 150,000  
Additional quarterly payments 4  
Quarterly installments per quarter $ 37,500