Note 1 - Summary of Significant Accounting Policies - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 28, 2026	Dec. 27, 2025
Property, plant and equipment	$ 166,746	$ 165,106
Less accumulated depreciation and amortization	(90,074)	(88,119)
Property, plant and equipment, net	76,672	76,987	[1]
Land and Land Improvements [Member]
Property, plant and equipment	12,057	12,364
Building and Building Improvements [Member]
Property, plant and equipment	50,343	49,469
Machinery and Equipment [Member]
Property, plant and equipment	$ 104,346	$ 103,273

[1] Derived from December 27, 2025, audited financial statements