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INVENTORIES (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 29, 2012
Dec. 31, 2011
Inventory at FIFO    
Finished products $ 4,424 $ 3,318
Materials and work in process 49,093 45,686
Gross inventories 53,517 49,004
Less: LIFO reserve (38,435) (37,476)
Less: excess and obsolescence reserve (1,712) (1,311)
Net inventories $ 13,370 $ 10,217