Note 11 - Income Taxes - Open Income Tax Years (Details) |
12 Months Ended |
|---|---|
Jun. 30, 2026 | |
| Internal Revenue Service (IRS) [Member] | |
| Open Tax Year | 2023 |
| Canada Revenue Agency [Member] | |
| Open Tax Year | 2022 |
| Federal Ministry of Finance, Germany [Member] | |
| Open Tax Year | 2022 |
| Revenue Commissioners, Ireland [Member] | |
| Open Tax Year | 2025 |
| Portuguese Tax Authority [Member] | |
| Open Tax Year | 2024 |
| His Majesty's Revenue and Customs (HMRC) [Member] | |
| Open Tax Year | 2022 |