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Note 8 - Property, Plant and Equipment - Property, Plant and Equipment Components (Details) - USD ($)
$ in Thousands
Jul. 02, 2023
Dec. 31, 2022
Gross property, plant and equipment $ 82,957 $ 76,172
Accumulated depreciation (65,441) (60,640)
Property, Plant and Equipment, Net 17,516 15,532
Land and Land Improvements [Member]    
Gross property, plant and equipment 43 43
Building and Building Improvements [Member]    
Gross property, plant and equipment 8,473 8,044
Property, Plant and Equipment, Other Types [Member]    
Gross property, plant and equipment 71,868 66,037
Construction in Progress [Member]    
Gross property, plant and equipment $ 2,572 $ 2,048