Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 28, 2026	Mar. 29, 2025	Dec. 27, 2025
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 206,201		$ 206,063
Accumulated depreciation	(178,142)		(176,909)
Property, plant and equipment, net	28,059		29,154
Depreciation	1,233	$ 1,293
Land and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,434		3,434
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	41,589		41,589
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	160,919		160,838
Assets under construction
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 259		$ 202

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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