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STOCKHOLDERS' EQUITY (Schedule of Dividends) (Details) - $ / shares
3 Months Ended 12 Months Ended
Aug. 31, 2017
Feb. 28, 2017
Feb. 01, 2017
Nov. 30, 2017
Nov. 30, 2016
Aug. 31, 2017
Dividends Payable [Line Items]            
Amount        
2017 Dividend Declared [Member]            
Dividends Payable [Line Items]            
Declared           Feb. 01, 2017
Amount     $ 0.70      
2017 First Dividend Paid [Member]            
Dividends Payable [Line Items]            
Record Date           Feb. 15, 2017
Date Paid           Feb. 28, 2017
Payment Amount   $ 0.35        
2017 Second Dividend Paid [Member]            
Dividends Payable [Line Items]            
Record Date           Aug. 15, 2017
Date Payable           Aug. 31, 2017
Payment Amount $ 0.35