Quarterly report pursuant to Section 13 or 15(d)

License Agreements - Additional Information (Detail)

v2.4.0.8
License Agreements - Additional Information (Detail) (USD $)
 1 Months Ended 3 Months Ended 6 Months Ended
Oct. 17, 2011
Installment
May 31, 2013
May 31, 2012
May 31, 2013
Agreement
Installment
May 31, 2012
Nov. 30, 2012
Nov. 15, 2014
Scenario, Forecast [Member]
License Agreements [Line Items]              
Types of agreement       2      
Date of notification received related to terminating license agreement       Aug. 19, 2011      
Date of amendment to license agreement with Mexico       Oct. 17, 2011      
Total royalty to be received in 37 monthly installments $ 1,863,000            
Number of installments 37            
Amount of installment to be received related to termination of licenses agreement 50,000            
Final payment to be received related to termination of license agreement             13,000
Company for royalties or other license payments and the agreement   1,863,000   1,863,000      
Royalty receivable   836,166   836,166   1,115,505  
Deferred royalty revenue   831,127   831,127   1,104,623  
Number of installments received       6      
Revenue associated with two agreements       50,000 50,000    
Processing and storage revenues   $ 382,979 $ 387,128 $ 757,199 $ 811,633