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Note 2 - Fair Value of Financial Instruments (Details) - Level 3 Fair Value Measurements (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Dec. 31, 2013
Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Impaired Loans [Member] |  |
Commercial real estate: |  |
Fair Value (in Dollars) | $ 1,970 | $ 1,973
Valuation Techniques | Sales approach | Sales approach
Unobservable Inputs | Adjustment to comparables | Adjustment to comparables
Weighted Average | 8.00% | 8.00%
Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Minimum [Member] | Impaired Loans [Member] |  |
Commercial real estate: |  |
Range | 5.00% | 5.00%
Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Maximum [Member] | Impaired Loans [Member] |  |
Commercial real estate: |  |
Range | 10.00% | 10.00%
Commercial and Industrial [Member] | Impaired Loans [Member] |  |
Commercial real estate: |  |
Fair Value (in Dollars) | 2,809 |
Valuation Techniques | Sales approach |
Unobservable Inputs | Adjustment to comparables |
Weighted Average | 16.00% |
Commercial and Industrial [Member] | Other Real Estate Owned [Member] |  |
Commercial real estate: |  |
Fair Value (in Dollars) |  | 2,863
Valuation Techniques |  | Sales approach
Unobservable Inputs |  | Adjustment to comparables
Weighted Average |  | 16.00%
Commercial and Industrial [Member] | Minimum [Member] | Impaired Loans [Member] |  |
Commercial real estate: |  |
Range | 0.00% |
Commercial and Industrial [Member] | Minimum [Member] | Other Real Estate Owned [Member] |  |
Commercial real estate: |  |
Range |  | 0.00%
Commercial and Industrial [Member] | Maximum [Member] | Impaired Loans [Member] |  |
Commercial real estate: |  |
Range | 20.00% |
Commercial and Industrial [Member] | Maximum [Member] | Other Real Estate Owned [Member] |  |
Commercial real estate: |  |
Range |  | 20.00%
Commercial Real Estate Construction Financing Receivable [Member] | Other Real Estate Owned [Member] |  |
Commercial real estate: |  |
Fair Value (in Dollars) | $ 1,058 | $ 1,058
Valuation Techniques | Sales approach | Sales approach
Unobservable Inputs | Adjustment to comparables | Adjustment to comparables
Weighted Average | 19.00% | 19.00%
Commercial Real Estate Construction Financing Receivable [Member] | Minimum [Member] | Other Real Estate Owned [Member] |  |
Commercial real estate: |  |
Range | 5.00% | 5.00%
Commercial Real Estate Construction Financing Receivable [Member] | Maximum [Member] | Other Real Estate Owned [Member] |  |
Commercial real estate: |  |
Range | 35.00% | 35.00%

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- Details
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- Definition Fair Value Range + References No definition available. + Details
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Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Fair Value Range Weighted Average + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Fair Value Unobservable Inputs + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureNonrecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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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=25499696&loc=d3e19207-110258 + Details
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