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Note 5 - Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	[1]
Fair Value of Derivatives	$ 2,129	$ 393
Fair Value, Inputs, Level 1 [Member]
Fair Value of Derivatives
Fair Value, Inputs, Level 2 [Member]
Fair Value of Derivatives	2,129	393
Fair Value, Inputs, Level 3 [Member]
Fair Value of Derivatives
[1] Includes derivative liabilities of $487 at December 31, 2017.

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- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

+ Details

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