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(Loss) Income per Common Share - Additional Information (Detail) - shares
3 Months Ended 9 Months Ended
Aug. 31, 2015
Aug. 31, 2015
Employee Stock Incentive Plan [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Number of outstanding options excluded from computation of diluted earnings per share 225,000 287,500