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Note 5 - Derivative Instruments and Hedging Activities - Fair Value of Derivatives (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Commodity Contract [Member]
Fair Value of Derivatives	$ (542)	$ 107
Foreign Exchange Contract [Member]
Fair Value of Derivatives	(67)	167
Interest Rate Swap [Member]
Fair Value of Derivatives	$ 18,414	$ 4,356

X

- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

+ Details

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- Details

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