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Note 10 - Interest Rate Swap Derivatives - Fair Values of Derivative (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Notional amount | $ 250,000 | $ 250,000
Fair value | $ (692) | $ (1,417)
Pay rate |  |
Interest Rate Swap 1 [Member] | Other Liabilities [Member] |  |
Notional amount | $ 75,000 | $ 75,000
Fair value | $ (197) | $ (368)
Pay rate | 1.71% | 1.71%
Maturity | Mar. 31, 2020 | Mar. 31, 2020
Interest Rate Swap 2 [Member] | Other Liabilities [Member] |  |
Notional amount | $ 100,000 | $ 100,000
Fair value | $ (514) | $ (665)
Pay rate | 1.74% | 1.74%
Maturity | Apr. 15, 2021 | Apr. 15, 2021
Interest Rate Swap 3 [Member] | Other Liabilities [Member] |  |
Notional amount | $ 75,000 | $ 75,000
Fair value | $ 19 | $ (384)
Pay rate | 1.92% | 1.92%
Maturity | Mar. 31, 2022 | Mar. 31, 2022

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- 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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13495-108611 + Details
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- Definition Date the derivative contract matures, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Fixed interest rate that will be received or paid upon exercise of the interest rate swaption contract. + References No definition available. + Details
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