Annual report pursuant to Section 13 and 15(d)

Impact of Superstorm Sandy - Additional Information (Detail)

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Impact of Superstorm Sandy - Additional Information (Detail) (USD $)
12 Months Ended
Nov. 30, 2012
Unusual Risk or Uncertainty [Line Items]  
Insurance loss limit $ 1,000,000
Insurance proceeds 200,000
Insurance receivable 800,000
Net loss incurred due to superstorm sandy $ 128,554