Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details 4)

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Income Taxes (Details 4) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Summary of unrecognized tax benefits      
Unrecognized tax benefits, Beginning Balance $ 609 $ 169 $ 160
Increases from positions taken during prior periods 710 440 47
Lapse of statute of limitations     (38)
Settled positions (124)    
Unrecognized tax benefits, Ending Balance $ 1,195 $ 609 $ 169