Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value Quantitative Information - Fair Value, Inputs, Level 3 [Member] $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($)
Market Approach Valuation Technique [Member] \| Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value (in Dollars)	$ 4,554
Valuation technique	Market Comparable
Unobservable input	Discount to reflect realizable value
Market Approach Valuation Technique [Member] \| Foreclosed Assets Held-for-sale [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Valuation technique	Market Comparable
Unobservable input	Discount to reflect realizable value
Income Approach Valuation Technique [Member] \| Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value (in Dollars)	$ 7,986
Valuation technique	Discounted cash flow
Unobservable input	Discount rate
Minimum [Member] \| Market Approach Valuation Technique [Member] \| Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range	0.00%
Weighted average	(0.00%)
Minimum [Member] \| Income Approach Valuation Technique [Member] \| Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range	0.00%
Weighted average	(0.00%)
Maximum [Member] \| Market Approach Valuation Technique [Member] \| Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range	38.00%
Weighted average	(38.00%)
Maximum [Member] \| Income Approach Valuation Technique [Member] \| Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range	41.00%
Weighted average	(41.00%)
Weighted Average [Member] \| Market Approach Valuation Technique [Member] \| Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range	6.00%
Weighted average	(6.00%)
Weighted Average [Member] \| Income Approach Valuation Technique [Member] \| Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range	3.00%
Weighted average	(3.00%)

Description of unobservable inputs used to measure fair value.

No definition available.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ 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 (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ 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=66048111&loc=d3e19207-110258

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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=66048111&loc=d3e19207-110258

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