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])
6 Months Ended
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 457,000