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Note 12 - Income Taxes (Details Textual) - USD ($) | 12 Months Ended |
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024
Liability for Uncertainty in Income Taxes, Current | $ 891,000 | $ 785,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | $ 421,000 | $ 277,000
Domestic Tax Jurisdiction [Member] |  |
Open Tax Year | 2021 2022 2023 2024 |
Domestic Tax Jurisdiction [Member] | Internal Revenue Service (IRS) [Member] |  |
Tax Credit Carryforward, Amount | $ 4,800,000 |
Operating Loss Carryforwards | $ 0 |
Foreign Tax Jurisdiction [Member] |  |
Open Tax Year | 2019 2020 2021 2022 2023 2024 |
Foreign Tax Jurisdiction [Member] | Canada Revenue Agency [Member] |  |
Tax Credit Carryforward, Amount | $ 0 |
Operating Loss Carryforwards | $ 0 |

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