Note 6 - Income Taxes (Details Textual) - USD ($) |
Mar. 31, 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 |
| X | ||||||||||
- Definition 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
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| X | ||||||||||
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition 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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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