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CONSOLIDATED CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) (USD $)
9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Cash dividends per share (in dollars per share) $ 0.200 $ 0.200
Issuance of shares under employee stock plans (in shares) 31,341 82,059
Issuance of shares under stock grant programs (in shares) 30,650 51,771
Issuance of shares under deferred compensation plans (in shares) 41,019 33,525