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Note 2 - Assets Held For Sale - Assets and Liabilities Held For Sale (Details) - USD ($)
$ in Thousands
Jan. 01, 2022
Mar. 31, 2021
Dec. 26, 2020
Current assets held for sale $ 8,930 $ 8,656 $ 11,375
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]      
Property, plant and equipment (net) 8,930 8,656 11,375
Current assets held for sale $ 8,930 $ 8,656 $ 11,375