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Supplemental Financial Information (Accrued Expense and Other Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Oct. 01, 2013
Jan. 01, 2013
Jan. 03, 2012
Supplemental Financial Information [Abstract]      
Gift card liability $ 1,633 $ 2,182 $ 1,875
Occupancy related 1,302 1,264 1,188
Utilities 1,319 1,002 870
Accrued interest   484 337
Other accrued expenses   2,317 1,576
Other accrued expenses 3,360 2,801  
Accrued expenses and other current liabilities $ 7,614 $ 7,249 $ 5,846