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Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]

Property, plant and equipment, stated at cost, consist of the following at December 31, 2012 and 2011 (in thousands):

 

    December 31,  
    2012     2011  
Land and land improvements   $ 19,643     $ 19,643  
Buildings and improvements     49,838       49,832  
Machinery and equipment     250,042       248,247  
Office furniture and equipment     297       6,432  
Construction in progress     6,493       1,126  
      326,313       325,280  
Accumulated depreciation     (116,668 )     (89,392 )
Property, plant and equipment, net   $ 209,645     $ 235,888