Note 7 - Long-term Debt - Summary of Long-term Debt (Details) (Parentheticals)	6 Months Ended
Nov. 30, 2025 USD ($)
Term Loans Due July 29, 2027 [Member]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Term Loans Due July 29, 2027 [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Effective Percentage	4.50%
Term Loan Payable Due August 10, 2028 [Member]
Debt Instrument, Interest Rate, Stated Percentage	3.50%
Debt Instrument, Periodic Payment	$ 5,997
Revolving Loan Payable Due February 5, 2026 [Member]
Debt Instrument, Interest Rate, Stated Percentage	7.50%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Amount of the required periodic payments including both interest and principal payments.

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