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Note 11 - Fair Value Measurements (Details) - Assets Measured at Fair Value Based on Significant Unobservable Inputs - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014
Assets: |  |
Beginning balance, assets | $ 365 | $ 219
Ending balance, assets | 416 | 365
Liabilities: |  |
Beginning balance, liabilities | 250 | 0
Realized gain (loss) included in earnings - net derivatives | (5) | 250
Ending balance, liabilities | 245 | 250
Assets: |  |
Realized and unrealized gain (loss) included in earnings - net derivatives | 51 | 146
Equity Investment Other [Member] |  |
Assets: |  |
Beginning balance, assets | 219 | 219
Ending balance, assets | 219 | 219
Liabilities: |  |
Beginning balance, liabilities | 0 | 0
Realized gain (loss) included in earnings - net derivatives | 0 | 0
Ending balance, liabilities | 0 | 0
Assets: |  |
Realized and unrealized gain (loss) included in earnings - net derivatives | 0 | 0
Derivative Assets and Liabilities [Member] |  |
Assets: |  |
Beginning balance, assets | 146 | 0
Ending balance, assets | 197 | 146
Liabilities: |  |
Beginning balance, liabilities | 250 | 0
Realized gain (loss) included in earnings - net derivatives | (5) | 250
Ending balance, liabilities | 245 | 250
Assets: |  |
Realized and unrealized gain (loss) included in earnings - net derivatives | $ 51 | $ 146

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- Definition Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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