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INVENTORIES (Details) - USD ($)
$ in Thousands
Apr. 02, 2022
Dec. 31, 2021
Inventory at FIFO    
Finished products $ 15,677 $ 7,322
Materials and work in process 87,824 92,701
Gross inventories 103,501 100,023
Less: LIFO reserve (52,674) (51,826)
Less: excess and obsolescence reserve (3,913) (4,347)
Net inventories $ 46,914 $ 43,850