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Note 2 - Fair Value of Financial Instruments - Level 3 Fair Value Measurements (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Income Approach Valuation Technique [Member] |  |
Valuation Technique | Income approach |
Income Approach Valuation Technique [Member] | Weighted Average [Member] |  |
Range | 9.00% |
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Nonowner Occupied [Member] | Market Approach Valuation Technique [Member] |  |
Fair Value | $ 2,462 | $ 1,985
Valuation Technique | Sales approach | Sales approach
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Nonowner Occupied [Member] | Market Approach Valuation Technique [Member] | Minimum [Member] |  |
Range | 0.00% | 0.00%
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Nonowner Occupied [Member] | Market Approach Valuation Technique [Member] | Maximum [Member] |  |
Range | 250.00% | 250.00%
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Nonowner Occupied [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member] |  |
Range | 56.40% | 58.60%
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member] | Market Approach Valuation Technique [Member] |  |
Fair Value |  | $ 3,536
Valuation Technique |  | Sales approach
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member] | Market Approach Valuation Technique [Member] | Minimum [Member] |  |
Range |  | 0.00%
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member] | Market Approach Valuation Technique [Member] | Maximum [Member] |  |
Range |  | 65.00%
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member] |  |
Range |  | 13.70%
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member] | Cost Approach Valuation Technique [Member] |  |
Fair Value |  |
Valuation Technique |  | Cost approach
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member] | Cost Approach Valuation Technique [Member] | Minimum [Member] |  |
Range |  | 0.00%
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member] | Cost Approach Valuation Technique [Member] | Maximum [Member] |  |
Range |  | 29.50%
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Owner Occupied [Member] | Cost Approach Valuation Technique [Member] | Weighted Average [Member] |  |
Range |  | 14.80%
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Market Approach Valuation Technique [Member] |  |
Fair Value | $ 290 |
Valuation Technique | Sales approach |
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Market Approach Valuation Technique [Member] | Minimum [Member] |  |
Range | 15.70% |
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Market Approach Valuation Technique [Member] | Maximum [Member] |  |
Range | 52.00% |
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member] |  |
Range | 31.70% |
Impaired Loans [Member] | Commercial and Industrial Portfolio Segment [Member] | Market Approach Valuation Technique [Member] |  |
Fair Value | $ 373 | $ 298
Valuation Technique | Sales approach | Sales approach
Impaired Loans [Member] | Commercial and Industrial Portfolio Segment [Member] | Market Approach Valuation Technique [Member] | Minimum [Member] |  |
Range | 2.00% | 0.90%
Impaired Loans [Member] | Commercial and Industrial Portfolio Segment [Member] | Market Approach Valuation Technique [Member] | Maximum [Member] |  |
Range | 14.20% | 9.70%
Impaired Loans [Member] | Commercial and Industrial Portfolio Segment [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member] |  |
Range | 8.10% | 5.20%
Other Real Estate Owned [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Market Approach Valuation Technique [Member] |  |
Fair Value | $ 754 | $ 754
Valuation Technique | Sales approach | Sales approach
Other Real Estate Owned [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Market Approach Valuation Technique [Member] | Minimum [Member] |  |
Range | 0.00% | 0.00%
Other Real Estate Owned [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Market Approach Valuation Technique [Member] | Maximum [Member] |  |
Range | 30.00% | 30.00%
Other Real Estate Owned [Member] | Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member] | Market Approach Valuation Technique [Member] | Weighted Average [Member] |  |
Range | 11.70% | 11.70%

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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
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- Definition Percentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input 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 + Details
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