Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Reconciliation of New Tax Rate (Details)

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Income Taxes - Reconciliation of New Tax Rate (Details)
3 Months Ended 6 Months Ended 12 Months Ended
May 31, 2018
May 31, 2017
May 31, 2018
May 31, 2017
Nov. 30, 2017
Income Tax Contingency [Line Items]          
Federal rate 21.00% 34.00% 21.00% 34.00%  
State rate, net of federal tax benefit 3.13% 2.90% 3.13% 2.90%  
Total     24.13%   36.45%
Previous Rate          
Income Tax Contingency [Line Items]          
Federal rate     34.00%    
State rate, net of federal tax benefit     2.45%    
Total     36.45%