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PROPERTY AND EQUIPMENT (Tables)
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Schedule of property and equipment
   
December 31,
 
   
2012
   
2011
 
Buildings and improvements
  $ 29,314     $ 29,251  
Machinery and equipment
    50,452       48,170  
Office furniture and equipment
    1,251       1,251  
Land improvements
    992       992  
      82,009       79,664  
Less accumulated depreciation
    51,824       47,837  
      30,185       31,827  
Land
    1,368       1,368  
Construction in progress
    817       1,324  
Property and equipment, net
  $ 32,370     $ 34,519