Note 6 - Income Taxes - Schedule of Income Tax Eliminations (Details) |
6 Months Ended |
|---|---|
Jun. 30, 2025 | |
| Domestic Tax Jurisdiction [Member] | |
| Open Tax Year | 2021 2022 2023 2024 2025 |
| Foreign Tax Jurisdiction [Member] | |
| Open Tax Year | 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 |