Note 6 - Long-term Debt - Summary of Long-term Debt (Details) - USD ($)	May 31, 2025	May 31, 2024
Commerce, prime rate of interest plus 0.5% but not less than 4.50% maturing July 29, 2027	$ 11,169,342	$ 13,534,442
Debt issuance costs, net of amortization	(86,335)	(91,494)
Total debt, net of debt issuance costs	11,083,007	13,442,948
Less: Current portion of long-term debt	(2,249,524)	(2,362,212)
Long-term debt, net of current portion	8,833,483	11,080,736
Term Loans Due July 29, 2027 [Member]
Commerce, prime rate of interest plus 0.5% but not less than 4.50% maturing July 29, 2027	10,502,754	12,519,501
Term Loan Payable Due March 19, 2025 [Member]
Commerce, prime rate of interest plus 0.5% but not less than 4.50% maturing July 29, 2027	0	271,061
Term Loan Payable Due August 10, 2028 [Member]
Commerce, prime rate of interest plus 0.5% but not less than 4.50% maturing July 29, 2027	666,588	709,916
Other Debt [Member]
Commerce, prime rate of interest plus 0.5% but not less than 4.50% maturing July 29, 2027	$ 0	$ 33,964