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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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Interest rate of the unobservable input to the valuation technique.

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Unobservable input of the valuation technique.

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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

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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

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