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Note 18 - Fair Value of Financial Instruments (Details) - Quantitative Information About Recurring and Non-Recurring Level 3 Fair Value of Financial Instruments as Well as Assumptions Used in Estimating Fair Value - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Municipal Debt Securities [Member] |  |
Assets: |  |
Fair Value (in Dollars) | $ 7,212 | $ 15,519
Valuation Technique | Discounted cash flows | Discounted cash flows
Unobservable Input | Discount rate | Discount rate
Junior Subordinated Debentures [Member] |  |
Assets: |  |
Fair Value (in Dollars) | $ 29,018 | $ 28,771
Valuation Technique | Discounted cash flows | Discounted cash flows
Unobservable Input | Discount rate | Discount rate
Range (Weighted Average) | 7.00% | 7.00%
Trust Preferred Securities [Member] |  |
Assets: |  |
Fair Value (in Dollars) |  | $ 7,090
Valuation Technique |  | Discounted cash flows
Unobservable Input |  | Discount rate
Minimum [Member] | Municipal Debt Securities [Member] |  |
Assets: |  |
Range (Weighted Average) | 7.00% | 0.20%
Minimum [Member] | Trust Preferred Securities [Member] |  |
Assets: |  |
Range (Weighted Average) |  | 7.00%
Maximum [Member] | Municipal Debt Securities [Member] |  |
Assets: |  |
Range (Weighted Average) | 7.07% | 4.00%
Maximum [Member] | Trust Preferred Securities [Member] |  |
Assets: |  |
Range (Weighted Average) |  | 7.25%
Weighted Average [Member] | Municipal Debt Securities [Member] |  |
Assets: |  |
Range (Weighted Average) | 7.10% | 2.30%
Weighted Average [Member] | Junior Subordinated Debentures [Member] |  |
Assets: |  |
Range (Weighted Average) | 7.00% | 7.00%
Weighted Average [Member] | Trust Preferred Securities [Member] |  |
Assets: |  |
Range (Weighted Average) |  | 7.20%

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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 Description of the inputs and valuation technique(s) used to measure fair value. + 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 (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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