Note 6 - Long-term Debt - Summary of Long-term Debt (Details) - USD ($)	Nov. 30, 2024	May 31, 2024
Long-Term Debt, Gross	$ 12,358,536	$ 13,534,442
Debt issuance costs, net of amortization	(88,915)	(91,494)
Total debt, net of debt issuance costs	12,269,621	13,442,948
Less: Current portion of long-term debt	(2,245,185)	(2,362,212)
Long-term debt, net of current portion	10,024,436	11,080,736
Term Loans Due July 29, 2027 [Member]
Long-Term Debt, Gross	11,545,320	12,519,501
Term Loan Payable Due March 19, 2025 [Member]
Long-Term Debt, Gross	109,282	271,061
Term Loan Payable Due August 10, 2028 [Member]
Long-Term Debt, Gross	690,241	709,916
Other Debt [Member]
Long-Term Debt, Gross	$ 13,693	$ 33,964