Note 8 - Property, Plant and Equipment - Property, Plant and Equipment Components (Details) - USD ($) $ in Thousands |
Jun. 29, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Gross property, plant and equipment | $ 78,423 | $ 76,330 |
| Accumulated depreciation | (65,532) | (63,031) |
| Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization | 12,891 | 13,299 |
| Land and Land Improvements [Member] | ||
| Gross property, plant and equipment | 43 | 43 |
| Building and Building Improvements [Member] | ||
| Gross property, plant and equipment | 7,880 | 7,781 |
| Machinery, Equipment, Furniture and Fixtures [Member] | ||
| Gross property, plant and equipment | 69,994 | 67,636 |
| Construction in Progress [Member] | ||
| Gross property, plant and equipment | $ 506 | $ 870 |