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STOCKHOLDERS' EQUITY (Schedule of Dividends) (Details) - $ / shares
3 Months Ended
Aug. 31, 2019
Feb. 28, 2019
Jan. 30, 2019
Nov. 30, 2019
Nov. 30, 2018
Dividends Payable [Line Items]          
Amount      
2019 Dividend Declared [Member]          
Dividends Payable [Line Items]          
Declared       Jan. 30, 2019  
Amount     $ 0.70    
2019 First Dividend Paid [Member]          
Dividends Payable [Line Items]          
Record Date       Feb. 15, 2019  
Date Paid       Feb. 28, 2019  
Payment Amount   $ 0.35      
2019 Second Dividend Paid [Member]          
Dividends Payable [Line Items]          
Record Date       Aug. 15, 2019  
Date Paid       Aug. 30, 2019  
Payment Amount $ 0.35