Note 6 - Long-term Debt - Summary of Long-term Debt (Details) (Parentheticals) - USD ($)	12 Months Ended
May 31, 2025	May 31, 2024
Term Loan Payable Due March 19, 2025 [Member]
Debt Instrument, Interest Rate, Stated Percentage	3.70%	3.70%
Debt Instrument, Periodic Payment	$ 27,593	$ 27,593
Debt Instrument, Maturity Date	Mar. 19, 2025	Mar. 19, 2025
Term Loan Payable Due August 10, 2028 [Member]
Debt Instrument, Interest Rate, Stated Percentage	3.50%	3.50%
Debt Instrument, Periodic Payment	$ 5,997	$ 5,997
Debt Instrument, Maturity Date	Aug. 10, 2028	Aug. 10, 2028
Minimum [Member] \| Term Loans Due July 29, 2027 [Member]
Debt Instrument, Basis Spread on Variable Rate	0.50%	0.50%
Debt Instrument, Basis Spread on Variable Rate	0.50%	0.50%
Maximum [Member] \| Term Loans Due July 29, 2027 [Member]
Debt Instrument, Basis Spread on Variable Rate	4.50%	4.50%
Debt Instrument, Basis Spread on Variable Rate	4.50%	4.50%

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

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(a)(1))
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
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-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(a)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

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

+ References

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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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-Publisher FASB
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-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477734/942-470-50-3

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