Note 9 - Property, Plant and Equipment - Property, Plant and Equipment Components (Details) - USD ($) $ in Thousands |
Apr. 05, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Gross property, plant and equipment | $ 79,172 | $ 78,957 |
| Accumulated depreciation | (63,606) | (62,953) |
| Property, plant and equipment, net | 15,566 | 16,004 |
| Building and Building Improvements [Member] | ||
| Gross property, plant and equipment | 6,675 | 6,498 |
| Machinery, Equipment, Furniture and Fixtures [Member] | ||
| Gross property, plant and equipment | 71,959 | 71,999 |
| Construction in Progress [Member] | ||
| Gross property, plant and equipment | $ 538 | $ 460 |