Note 5 - Long-term Debt - Summary of Long-term Debt (Details) - USD ($)	May 31, 2024	May 31, 2023
Long-Term Debt, Gross	$ 13,534,442	$ 17,253,279
Less: Debt issuance costs, net of amortization	(91,494)	(84,022)
Long-Term Debt	13,442,948	17,169,257
Less: Current portion of long-term debt	(2,362,212)	(2,249,570)
Long-term debt	11,080,736	14,919,687
Term Loans A Due July292027 [Member]
Long-Term Debt, Gross	6,171,416	7,065,283
Term Loans B Due July292027 [Member]
Long-Term Debt, Gross	6,348,085	7,269,453
Revolving Loan Payable Due July 29, 2024 [Member]
Long-Term Debt, Gross	0	1,500,000
Term Loan Payable Due March 19, 2025 [Member]
Long-Term Debt, Gross	271,061	585,536
Term Loan Payable Due August 10, 2028 [Member]
Long-Term Debt, Gross	709,916	759,639
Other Debt [Member]
Long-Term Debt, Gross	$ 33,964	$ 73,368