Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Summary of Future Commitments under Non-Cancelable Operating Lease Agreements (Detail)

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Commitments and Contingencies - Summary of Future Commitments under Non-Cancelable Operating Lease Agreements (Detail) (USD $)
Nov. 30, 2012
Operating Leases Future Minimum Payments Due [Line Items]  
2013 $ 879,816
2014 849,726
2015 828,414
2016 720,330
2017 and thereafter $ 810,783