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Note 10 - Interest Rate Swap Derivatives - Pre-tax Net Gains (Losses) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Amount of pre-tax gain (loss) recognized in OCI | $ (692) | $ (1,417)
Effective portion reclassified from AOCI into income | (2,255) |
Ineffective portion recognized in income on derivatives | 1 |
Interest Rate Swap 1 [Member] |  |
Amount of pre-tax gain (loss) recognized in OCI | (197) | (368)
Effective portion reclassified from AOCI into income | (628) |
Ineffective portion recognized in income on derivatives |  |
Interest Rate Swap 2 [Member] |  |
Amount of pre-tax gain (loss) recognized in OCI | (514) | (665)
Effective portion reclassified from AOCI into income | (880) |
Ineffective portion recognized in income on derivatives |  |
Interest Rate Swap 3 [Member] |  |
Amount of pre-tax gain (loss) recognized in OCI | 19 | (384)
Effective portion reclassified from AOCI into income | (747) |
Ineffective portion recognized in income on derivatives | $ 1 |

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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959 + Details
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- Definition The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1),(2) -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 + Details
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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