Consolidated Statements of Changes in Equity (Unaudited) - USD ($)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balances (in shares) at May. 31, 2022	50,000	28,279,701
Balances at May. 31, 2022	$ 5	$ 2,828	$ 53,533,272	$ (39,838,449)	$ 13,697,656	$ 1,383,825	$ 15,081,481
Capital contribution non-controlling interest	0	0	0	0	0	1,669,000	1,669,000
Deconsolidation of variable interest entity	0	0	0	0	0	(3,102,424)	(3,102,424)
Preferred dividends	0	0	0	(109,418)	(109,418)	0	(109,418)
Net income	$ 0	$ 0	0	1,324,142	1,324,142	49,599	1,373,741
Balances (in shares) at Aug. 31, 2022	50,000	28,279,701
Balances at Aug. 31, 2022	$ 5	$ 2,828	53,533,272	(38,623,725)	14,912,380	0	14,912,380
Balances (in shares) at May. 31, 2022	50,000	28,279,701
Balances at May. 31, 2022	$ 5	$ 2,828	53,533,272	(39,838,449)	13,697,656	1,383,825	15,081,481
Net income							4,881,990
Balances (in shares) at Feb. 28, 2023	50,000	28,279,701
Balances at Feb. 28, 2023	$ 5	$ 2,828	53,533,272	(35,367,325)	18,168,780	0	18,168,780
Balances (in shares) at Aug. 31, 2022	50,000	28,279,701
Balances at Aug. 31, 2022	$ 5	$ 2,828	53,533,272	(38,623,725)	14,912,380	0	14,912,380
Preferred dividends	0	0	0	(119,349)	(119,349)	0	(119,349)
Net income	$ 0	$ 0	0	(187,247)	(187,247)	0	(187,247)
Balances (in shares) at Nov. 30, 2022	50,000	28,279,701
Balances at Nov. 30, 2022	$ 5	$ 2,828	53,533,272	(38,930,321)	14,605,784	0	14,605,784
Preferred dividends	0	0	0	(132,500)	(132,500)	0	(132,550)
Net income	$ 0	$ 0	0	3,695,496	3,695,496	0	3,695,496
Balances (in shares) at Feb. 28, 2023	50,000	28,279,701
Balances at Feb. 28, 2023	$ 5	$ 2,828	53,533,272	(35,367,325)	18,168,780	0	18,168,780
Balances (in shares) at May. 31, 2023	50,000	28,279,701
Balances at May. 31, 2023	$ 5	$ 2,828	53,533,272	(33,995,621)	19,540,484	0	19,540,484
Preferred dividends	0	0	0	(146,199)	(146,199)	0	(146,199)
Net income	$ 0	$ 0	0	1,744,219	1,744,219	0	1,744,219
Balances (in shares) at Aug. 31, 2023	50,000	28,279,701
Balances at Aug. 31, 2023	$ 5	$ 2,828	53,533,272	(32,397,601)	21,138,504	0	21,138,504
Balances (in shares) at May. 31, 2023	50,000	28,279,701
Balances at May. 31, 2023	$ 5	$ 2,828	53,533,272	(33,995,621)	19,540,484	0	19,540,484
Net income							3,006,974
Balances (in shares) at Feb. 29, 2024	50,000	28,279,701
Balances at Feb. 29, 2024	$ 5	$ 2,828	53,533,272	(31,427,791)	22,108,314	0	22,108,314
Balances (in shares) at Aug. 31, 2023	50,000	28,279,701
Balances at Aug. 31, 2023	$ 5	$ 2,828	53,533,272	(32,397,601)	21,138,504	0	21,138,504
Preferred dividends				(146,472)	(146,472)		(146,472)
Net income				964,826	964,826		964,826
Balances (in shares) at Nov. 30, 2023	50,000	28,279,701
Balances at Nov. 30, 2023	$ 5	$ 2,828	53,533,272	(31,579,247)	21,956,858	0	21,956,858
Preferred dividends				(146,473)	(146,473)		(146,473)
Net income				297,929	297,929		297,929
Balances (in shares) at Feb. 29, 2024	50,000	28,279,701
Balances at Feb. 29, 2024	$ 5	$ 2,828	$ 53,533,272	$ (31,427,791)	$ 22,108,314	$ 0	$ 22,108,314