Quarterly report pursuant to Section 13 or 15(d)

Acquisition of Patents - Additional Information (Detail)

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Acquisition of Patents - Additional Information (Detail) (USD $)
0 Months Ended 3 Months Ended
Oct. 16, 2012
Aug. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]    
Estimated aggregate future amortization expense in year one   $ 350,000
Estimated aggregate future amortization expense in year two   350,000
Estimated aggregate future amortization expense in year three   350,000
Estimated aggregate future amortization expense in year four   350,000
Estimated aggregate future amortization expense in year five   350,000
Patents
   
Acquired Finite-Lived Intangible Assets [Line Items]    
Asset purchase, cash paid 3,500,000  
Intangible asset acquired   3,500,000
Remaining approximate life   8 years
Amortization expense related to patents   $ 87,500