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Equities Dividends Per Share (Details) - $ / shares
 3 Months Ended 9 Months Ended
May 31, 2025
May 31, 2024
May 31, 2025
May 31, 2024
8% Cumulative Redeemable [Member]        
8% Cumulative Redeemable [Line Items]        
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears $ 0.50 $ 0.50 $ 2.00 $ 2.00
Class B, Series 1 Preferred Stock [Member]        
8% Cumulative Redeemable [Line Items]        
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears 0.49 0.49 1.97 1.97
Class B, Series 2 Preferred Stock [Member]        
8% Cumulative Redeemable [Line Items]        
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears 0.44 0.44 1.78 1.78
Class B, Series 3 Preferred Stock [Member]        
8% Cumulative Redeemable [Line Items]        
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears 0.42 0.42 1.69 1.69
Class B, Series 4 Preferred Stock [Member]        
8% Cumulative Redeemable [Line Items]        
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears $ 0.47 $ 0.47 $ 1.88 $ 1.88