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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2011
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Text Block]
(4)  
Property, Plant and Equipment

The components of property, plant and equipment at December 31 were as follows (in thousands):

   
2011
 
2010
 
Land
 
$
4,228
 
$
4,194
 
Buildings
   
69,871
   
68,077
 
Machinery and other equipment
   
264,216
   
239,940
 
     
338,315
   
312,211
 
Accumulated depreciation
   
(229,540
)
 
(208,724
)
   
$
108,775
 
$
103,487