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Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Components of Property, plant and equipment

Property, plant and equipment consists of the following (in thousands):

 

                 
    December 31,  
    2012     2011  
     

Land and land improvements

  $ 3,467     $ 3,337  

Buildings and building improvements

    25,351       24,704  

Machinery, equipment, furniture and fixtures

    160,356       156,595  

Construction in progress

    3,643       5,985  
   

 

 

   

 

 

 
     
      192,817       190,621  
     

Accumulated depreciation

    (139,767     (133,730
   

 

 

   

 

 

 
     
    $ 53,050     $ 56,891