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Note 3 - Derivative Instruments and Hedging Activities (Tables)
6 Months Ended
Jun. 30, 2016
Notes Tables  
Schedule Of Derivative Assets (Liabilities) at Fair Value [Table Text Block]
 
 
June 30,
2016
 
 
December 31,
2015
 
Commodity contracts
  $ 82     $ (400 )
Foreign currency contracts
    87       (171 )
Interest rate swaps
    (4,733 )     (2,618 )