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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2011
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
4. Property, Plant and Equipment
 
 
Property, plant and equipment consist of the following:
 
December 31,
 
2011
   
2010
 
Land and improvements
$ 1,266 $ 1,266
Buildings and improvements
27,961 26,609
Machinery and equipment
111,558 97,514
Dies and tools
    28,357       24,990  
    $ 169,142     $  150,379