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Property, Equipment and Leasehold Improvements (Tables)
12 Months Ended
Dec. 28, 2012
Property, Plant and Equipment [Abstract]  
Property, Equipment and Leasehold Improvements
  Fiscal Years 
(In thousands) 2012  2011 
       
Property:        
Land $4,450  $4,450 
Buildings  34,491   33,983 
Construction in progress  706   134 
 Equipment:        
Machinery and equipment  29,687   27,142 
Office furniture and equipment  7,067   6,457 
Leasehold improvements  9,724   9,498 
   86,125   81,664 
         
Less accumulated depreciation and amortization  58,679   54,449 
         
Property, equipment and leasehold improvements, net $27,446  $27,215