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License Agreements - Summary of License Fees Earned (Detail) - USD ($)
 3 Months Ended 6 Months Ended
May. 31, 2015
May. 31, 2014
May. 31, 2015
May. 31, 2014
License Agreements [Line Items]        
Process and Storage Royalties $ 169,412 $ 169,411 $ 338,824 $ 1,132,662
India [Member]        
License Agreements [Line Items]        
Process and Storage Royalties $ 169,412 $ 169,411 $ 338,824 338,823
Mexico [Member]        
License Agreements [Line Items]        
Process and Storage Royalties       $ 793,839