Quarterly report pursuant to Section 13 or 15(d)

Investment in Saneron CCEL Therapeutics, Inc. (''Saneron'') - Additional Information (Detail)

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Investment in Saneron CCEL Therapeutics, Inc. (''Saneron'') - Additional Information (Detail) (USD $)
3 Months Ended 12 Months Ended
Feb. 28, 2014
Installment
Feb. 28, 2013
Nov. 30, 2013
Investments In Affiliates [Line Items]      
Value of treasury stock $ 3,378,036   $ 2,926,123
Saneron [Member]
     
Investments In Affiliates [Line Items]      
Ownership interest 34.00%    
Goodwill 684,000    
Goodwill Impairment 0   0
Loan Saneron in quarterly payments an aggregate amount 300,000    
Additional quarterly payments 2    
Date of maturity 5 years    
Quarterly installments per quarter 37,500    
Equity in losses 114,000 38,000  
Value of treasury stock 485,000   485,000
Saneron [Member] | Additional Investments [Member]
     
Investments In Affiliates [Line Items]      
Equity in losses 75,000    
Saneron [Member] | Stock Awards [Member]
     
Investments In Affiliates [Line Items]      
Equity in losses 39,000 38,000  
Saneron [Member] | Initial Loan [Member]
     
Investments In Affiliates [Line Items]      
Initial loan amount 150,000    
Additional quarterly payments 4    
Quarterly installments per quarter 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