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Leases (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 29, 2013
Dec. 30, 2012
Jan. 01, 2012
Leases [Abstract]      
Sale leaseback transactions, number 2 1 2
Sale leaseback transactions, net proceeds $ 3,144 $ 1,177 $ 2,818
Operating leases, term 20 years    
Sale leaseback transaction, deferred gains   705 133
Amortization of deferred gains from sale leaseback transactions $ 1,799 $ 1,776 $ 1,987