Quarterly report pursuant to Section 13 or 15(d)

Income (Loss) per Common Share - Additional Information (Detail)

v2.4.0.8
Income (Loss) per Common Share - Additional Information (Detail) (Employee Stock Incentive Plan [Member])
3 Months Ended 6 Months Ended
May 31, 2014
May 31, 2014
May 31, 2013
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 296,001 419,334 457,000