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Note 6 - Property, Plant and Equipment (Tables)
6 Months Ended
Jun. 30, 2012
Property, Plant and Equipment [Table Text Block]
   
June 30, 2012
   
December 31, 2011
 
Machinery and equipment
  $ 10,820     $ 11,117  
Building and improvements
    4,324       4,447  
Furniture, office equipment & other
    1,897       1,826  
                 
Total
    17,041       17,390  
Less accumulated depreciation
    (10,744 )     (10,520 )
Total property, plant and equipment
  $ 6,297     $ 6,870