Note 6 - Related Party Transactions (Details Textual) - USD ($)			3 Months Ended		9 Months Ended
	Aug. 01, 2022	Jan. 01, 2017	Feb. 28, 2026	Feb. 28, 2025	Feb. 28, 2026	Feb. 28, 2025	May 31, 2025
Loss On Revenue			$ 3,471,399	$ 14,315,798	$ 21,973,016	$ 39,911,692
TriEnda Holdings LLC [Member]
Related Party Transaction, Purchases from Related Party					3,008	87,634
Related Party Transaction, Purchases from Related Party					376,392	446,814
Durakon Industries, Inc. [Member]
Related Party Transaction, Purchases from Related Party					62,640
Accounts Receivable, after Allowance for Credit Loss			99,960		99,960		$ 37,320
Loss On Revenue						23,220
Yorktown [Member] | Grinding and Pelletizing Equipment [Member]
Weekly Rental Expenses					27,500
Operating Lease, Expense					1,072,500	1,072,500
Yorktown [Member] | Office Space Lease [Member]
Operating Lease, Expense					56,250	62,500
Lessee, Operating Lease, Term of Contract		6 years
Monthly Rental Expense, Renewal		$ 6,250
Greystone Real Estate L L C [Member] | Manufacturing Facilities Lease [Member]
Operating Lease, Expense					400,500	400,500
Lessee, Operating Lease, Term of Contract	10 years
Lessee, Operating Lease, Renewal Term	5 years
Monthly Rent Expense	$ 44,500
Monthly Rent Expense, Monthly Increase Every Fifth Year, Percent	5.00%
TriEnda Holdings LLC [Member]
Accounts Receivable, after Allowance for Credit Loss			573,442		573,442		617,538
Accounts Payable			74,710		74,710
Green Plastic Pallets [Member]
Related Party Transaction, Purchases from Related Party					376,392	$ 265,455
Accounts Receivable, after Allowance for Credit Loss			$ 89,895		$ 89,895		$ 273,345