Note 5 - Property, Plant and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 26, 2026	Mar. 31, 2026	Sep. 27, 2025
Property, Plant and Equipment, Gross	$ 896,388	$ 862,455	$ 843,867
Less: accumulated depreciation	(550,870)	(531,175)	(519,851)
Property, plant and equipment, net	345,518	331,280	324,016
Land and Land Improvements [Member]
Property, Plant and Equipment, Gross	57,026	54,195	54,003
Building and Building Improvements [Member]
Property, Plant and Equipment, Gross	250,545	243,062	240,666
Machinery and Equipment [Member]
Property, Plant and Equipment, Gross	543,840	523,448	519,968
Office Furniture, Vehicles and Computer Software [Member]
Property, Plant and Equipment, Gross	18,738	17,420	16,032
Construction in Progress [Member]
Property, Plant and Equipment, Gross	$ 26,239	$ 24,330	$ 13,198

Amount of accumulated depreciation, depletion, and amortization of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

Amount, after accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

+ References

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+ Details