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Note 9 - Components of Accumulated Other Comprehensive Loss - Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) | 3 Months Ended | 9 Months Ended
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Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Reclassifications out of unrealized gains and losses on available-for-sale securities: |  |  |  |
Realized securities gain, net | $ (101,000) | $ (2,000) | $ (153,000) | $ (5,000)
Income taxes | (35,000) | (1,000) | (54,000) | (2,000)
Realized gain on available-for-sale securities, net of tax, reclassified out of accumulated other comprehensive income | $ (66,000) | $ (1,000) | $ (99,000) | $ (3,000)

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- Definition Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e689-108580 + Details
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