Note 6 - Income Taxes (Details Textual) - USD ($)	Jun. 30, 2026	Apr. 30, 2025
Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Liability, Noncurrent		$ 5,100,000
Income Tax Jurisdiction, Domestic Federal [Member]
Deferred Tax Assets, Valuation Allowance, Total	$ 0
Operating Loss Carryforwards	884,000
Income Tax Jurisdiction, Domestic State and Local [Member]
Operating Loss Carryforwards	467,000
Income Tax Jurisdiction, Foreign [Member]
Operating Loss Carryforwards	$ 3,200,000

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-3

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Amount of tax liability from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated under United States of America (US) Public Law 115-97 (House of Representatives (H.R.) 1 of 115th Congress), classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/740/tableOfContent

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