Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended				6 Months Ended		12 Months Ended
	Nov. 30, 2024	Aug. 31, 2024	Nov. 30, 2023	Aug. 31, 2023	Nov. 30, 2024	Nov. 30, 2023	May 31, 2024
Cash Flows from Operating Activities:
Net income	$ (204,714)	$ 335,454	$ 964,826	$ 1,744,219	$ 130,740	$ 2,709,045
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Gain on involuntary conversion (See Note 4)					(741,821)	0
Depreciation and amortization					2,845,798	2,844,103
Change in deferred taxes					213,750	948,721
Decrease in trade and other accounts receivable					3,552,280	1,755,695
Increase in related parties receivable					(358,268)	(114,410)
Decrease (increase) in inventory					367,106	(775,896)
Decrease (increase) in prepaid expenses					(568,974)	235,227
Increase in accounts payable and accrued expenses					421,005	127,987
Decrease in deferred revenue					(817,981)	0
Net cash provided by operating activities					5,043,635	7,730,472
Cash Flows from Investing Activities:
Purchase of property, plant and equipment					(4,521,755)	(1,345,880)
Cash Flows from Financing Activities:
Principal payments on long-term debt and financing leases					(1,187,573)	(1,103,440)
Principal payments on revolving loan					(0)	1,500,000
Payments for debt issue costs					0	(13,085)
Dividends paid on preferred stock					(241,644)	(280,612)
Net cash used in financing activities					(1,429,217)	(2,897,137)
Net Increase (Decrease) in cash					(907,337)	3,487,455
Cash, beginning of period		$ 5,798,641		$ 695,951	5,798,641	695,951	$ 695,951
Cash, end of period	$ 4,891,304		$ 4,183,406		4,891,304	4,183,406	$ 5,798,641
Noncash Investing and Financing Items [Abstract]
Equipment in Accounts payable					106,058	316,329
Preferred dividend accrual					47,021	146,473
Supplemental information:
Interest paid					$ 563,158	$ 674,407