Annual report pursuant to Section 13 and 15(d)

Sale-Leaseback Transaction (Details)

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Sale-Leaseback Transaction (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Sep. 30, 2009
sqft
Dec. 29, 2012
Dec. 31, 2011
Sale-Leaseback Transaction [Abstract]      
Area of building (Sq ft) 126,458    
Proceeds, net of fees $ 4,627    
Initial lease period (in years) 5 years    
Proceeds from Sale of building 2,032 0 11
Repayments of mortgage 2,595 87 0
Adjustment to net book value 2,191    
Deferred gain 2,436    
Amortization of deferred gain   $ 488 $ 487