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Note 8 - Property, Plant and Equipment - Property, Plant and Equipment Components (Details) - USD ($) $ in Thousands | Mar. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Gross property, plant and equipment | $ 76,143 | $ 76,330
Accumulated depreciation | (63,523) | (63,031)
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization | 12,620 | 13,299
Land and Land Improvements [Member] |  |
Gross property, plant and equipment | 43 | 43
Building and Building Improvements [Member] |  |
Gross property, plant and equipment | 7,776 | 7,781
Machinery, Equipment, Furniture and Fixtures [Member] |  |
Gross property, plant and equipment | 67,687 | 67,636
Construction in Progress [Member] |  |
Gross property, plant and equipment | $ 637 | $ 870

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