Equities Dividends Per Share (Details) - $ / shares	3 Months Ended		9 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2024	May 31, 2023
8% Cumulative Redeemable [Member]
8% Cumulative Redeemable [Line Items]
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears	$ 0.50	$ 0	$ 2.00	$ 1.50
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	1.97	1.48
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	1.78	1.33
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	1.69	1.27
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	$ 1.88	$ 1.41