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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND RETAINED EARNINGS (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 29, 2012
Oct. 01, 2011
Sep. 29, 2012
Oct. 01, 2011
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND RETAINED EARNINGS        
Income (loss) from discontinued operation, income tax benefit $ 0 $ 5 $ 5 $ 26