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Supplemental Financial Information (Accrued Payroll and Benefits) (Details) (USD $)
In Thousands, unless otherwise specified
Oct. 01, 2013
Jan. 01, 2013
Jan. 03, 2012
Supplemental Financial Information [Abstract]      
Accrued payroll and related liabilities $ 5,196 $ 2,537 $ 2,094
Accrued bonus 2,303 1,981 3,511
Insurance liabilities 1,372 827 593
Accrued payroll and benefits $ 8,871 $ 5,345 $ 6,198