Annual report pursuant to Section 13 and 15(d)

Accrued Expenses - Summary of Accrued Expenses (Parenthetical) (Detail)

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Accrued Expenses - Summary of Accrued Expenses (Parenthetical) (Detail) (USD $)
Nov. 30, 2012
Payables And Accruals [Abstract]  
Severance related to lost salary $ 950,000