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Note O - Palladium Contingent Purchase Price (Tables)
12 Months Ended
Dec. 31, 2012
Change In Contingent Purchase Price [Table Text Block]
   
2012
   
2011
   
2010
 
Beginning balance                                                                         
  $ 3,739     $ 3,689     $ 0  
Initial recognition of the net present value of the CPP
    0       0       3,320  
Payment
    (1,776 )     0       0  
Change in net present value of the CPP
    681       50       369  
Ending balance                                                                         
  $ 2,644     $ 3,739     $ 3,689