Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment (Details)

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Property, Plant and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Summary of Property, Plant and Equipment    
Property, Plant and Equipment, Gross $ 75,041 $ 70,570
Less Accumulated Depreciation 31,479 29,448
Property, Plant and Equipment Net 43,562 41,122
Land [Member]
   
Summary of Property, Plant and Equipment    
Property, Plant and Equipment, Gross 2,819 2,819
Buildings and Improvements [Member]
   
Summary of Property, Plant and Equipment    
Property, Plant and Equipment, Gross 22,774 22,760
Machinery and Equipment [Member]
   
Summary of Property, Plant and Equipment    
Property, Plant and Equipment, Gross 39,209 37,289
Construction in Progress [Member]
   
Summary of Property, Plant and Equipment    
Property, Plant and Equipment, Gross $ 10,239 $ 7,702