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Note 4 - Derivative Instruments and Hedging Activities (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule Of Derivative Assets (Liabilities) at Fair Value [Table Text Block] |
|  | December 31 , 201 6 |  |  | December 31, 201 5 |
Commodity contracts |  | $ | 623 |  |  | $ | (400 | )
Foreign currency contracts |  |  | (150 | ) |  |  | (171 | )
Interest rate swaps |  |  | (1,739 | ) |  |  | (2,618 | )

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