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Property, Plant and Equipment, net (Tables)
 12 Months Ended
Dec. 31, 2013
Property, Plant and Equipment, net  
Schedule of components of property, plant and equipment

 

 

 
   December 31,  
 
   2013   2012  
 
   (in thousands)
  

Land and buildings

   $ 79,076   $ 78,954  

Machinery and equipment

     7,774     7,118  

Construction in process

     356     455  
           
​ ​ ​ ​ ​ ​ ​ ​

Total cost

     87,206     86,527  

Accumulated depreciation

     (55,200 )   (52,114 )
           
​ ​ ​ ​ ​ ​ ​ ​

Property, plant and equipment, net

   $ 32,006   $ 34,413  
           
​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​