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Commitments and Contingencies (Detail Textuals) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Commitments and Contingencies [Abstract]    
Workers' compensation liability risk $ 0.8  
Auto liability risk 2.0  
Limit for other insurable risks, physical loss to property, excluding natural catastrophes (in dollars per occurrence) 0.1  
Limits for other insurable risks, directors and officers (in dollars per occurrence) 0.8  
Limits for other insurable risks, medical benefit plans (in dollars per occurrence) 0.3  
Self insurance reserves 7.2 7.6
Expense and payments related to workers compensation, auto, general liability and health and welfare reserves   12.8
Expense incurred related to workers compensation, auto, general liability and health and welfare reserves 10.7  
Payments related to workers compensation, auto, general liability and health and welfare reserves $ 11.1