Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.2
Income (Loss) per Common Share - Additional Information (Detail) - shares
3 Months Ended 6 Months Ended
May 31, 2019
May 31, 2018
May 31, 2019
Employee Stock Incentive Plan [Member]      
Earnings Per Share Basic And Diluted [Line Items]      
Number of outstanding options excluded from computation of diluted earnings per share 51,636 51,636 51,636