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Income Taxes (Details 4) - USD ($)
$ in Thousands
12 Months Ended
Jan. 02, 2016
Dec. 27, 2014
Dec. 28, 2013
Company's adjustments to its uncertain tax position      
Balance at beginning of period $ 2,491 $ 2,618 $ 4,469
Increase for tax positions related to the current year 786 252 355
Increase for tax positions related to prior years   (108)  
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions 3,533   490
Decreases for settlements with applicable taxing authorities   (271) (2,696)
Decreases for lapses of statute of limitations (194)    
Balance at end of period $ 6,616 $ 2,491 $ 2,618