Note 9 - Property, Plant and Equipment - Property, Plant and Equipment Summary (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Jun. 30, 2025 |
|---|---|---|
| Property, plant and equipment, gross | $ 564,658 | $ 568,522 |
| Less: accumulated depreciation and amortization | (359,007) | (358,284) |
| Property, plant and equipment, net | 205,651 | 210,238 |
| Land and Improvements [Member] | ||
| Property, plant and equipment, gross | 78,111 | 77,971 |
| Building and Improvements [Member] | ||
| Property, plant and equipment, gross | 367,070 | 369,184 |
| Machinery and Equipment [Member] | ||
| Property, plant and equipment, gross | $ 119,477 | $ 121,367 |