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Note 10 - Fair Value of Financial Instruments (Details) - Assets and Liabilities Carried at Fair Value on a Recurring Basis, Classified Within Level 3 of the Valuation Hierarchy (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended |  |  |  | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended
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Sep. 30, 2013 REMIC And CMO [Member] Fair Value, Inputs, Level 3 [Member] | Sep. 30, 2013 REMIC And CMO [Member] Fair Value, Inputs, Level 3 [Member] | Sep. 30, 2013 Municipal [Member] Fair Value, Inputs, Level 3 [Member] | Sep. 30, 2013 Municipal [Member] Fair Value, Inputs, Level 3 [Member] | Sep. 30, 2014 Municipal [Member] | Jun. 30, 2014 Municipal [Member] | Dec. 31, 2013 Municipal [Member] | Sep. 30, 2013 Trust Preferred Securities [Member] Fair Value, Inputs, Level 3 [Member] | Sep. 30, 2013 Trust Preferred Securities [Member] Fair Value, Inputs, Level 3 [Member] | Sep. 30, 2014 Trust Preferred Securities [Member] | Sep. 30, 2014 Trust Preferred Securities [Member] | Sep. 30, 2013 Junior subordinated debentures [Member] Fair Value, Inputs, Level 3 [Member] | Sep. 30, 2013 Junior subordinated debentures [Member] Fair Value, Inputs, Level 3 [Member] | Sep. 30, 2014 Junior subordinated debentures [Member] | Sep. 30, 2014 Junior subordinated debentures [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ 22,930 | $ 23,475 | $ 9,327 | $ 9,429 | $ 12,453 | $ 10,592 | $ 9,223 | $ 8,367 | $ 6,650 | $ 13,361 | $ 14,935 | $ 26,192 | $ 23,922 | $ 29,388 | $ 29,570
Net gain from fair value adjustment of financial assets |  |  |  |  |  |  |  | (361) | 150 | 45 | 99 |  |  |  |
Net loss from fair value adjustment of financial liabilities |  |  |  |  |  |  |  |  |  |  |  | 272 | 2,547 | 145 | (34)
Increase in accrued interest payable |  |  |  |  |  |  |  |  |  |  |  | 1 | (4) | (2) | 1
Other-than-temporary impairment charge | (916) | (1,419) |  |  |  |  |  |  |  |  |  |  |  |  |
Change in unrealized gains (losses) included in other comprehensive income | (1,820) | (1,862) | (52) | (154) |  |  |  | (500) | 706 | 212 | 455 |  |  |  |
Ending balance | 20,194 | 20,194 | 9,275 | 9,275 | 12,453 | 10,592 | 9,223 | 7,506 | 7,506 | 13,618 | 13,618 | 26,465 | 26,465 | 29,535 | 29,535
Changes in unrealized held at period end | $ (1,820) | $ (1,862) | $ (52) | $ (154) |  |  |  | $ (500) | $ 706 | $ 212 | $ 455 |  |  |  |

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228 + Details
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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 Amount of gain (loss) recognized in other comprehensive income (loss) 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)(1a) -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 The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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