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Note 11 - Fair Values (Details) - Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis - Fair Value, Measurements, Nonrecurring [Member] - USD ($) | Sep. 30, 2015 | Dec. 31, 2014
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Note 11 - Fair Values (Details) - Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis [Line Items] |  |  |
Impaired loans | [1] | $ 9,258,000 | $ 17,097,000
Foreclosed assets | [1] | 2,272,000 | 1,995,000
Assets and liabilities measured at fair value on a nonrecurring basis |  | 11,530,000 | 19,092,000
Fair Value, Inputs, Level 1 [Member] |  |  |
Note 11 - Fair Values (Details) - Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis [Line Items] |  |  |
Impaired loans | [1] | 0 | 0
Foreclosed assets | [1] | 0 | 0
Assets and liabilities measured at fair value on a nonrecurring basis |  | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |  |
Note 11 - Fair Values (Details) - Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis [Line Items] |  |  |
Impaired loans | [1] | 0 | 0
Foreclosed assets | [1] | 0 | 0
Assets and liabilities measured at fair value on a nonrecurring basis |  | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |  |
Note 11 - Fair Values (Details) - Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis [Line Items] |  |  |
Impaired loans | [1] | 9,258,000 | 17,097,000
Foreclosed assets | [1] | 2,272,000 | 1,995,000
Assets and liabilities measured at fair value on a nonrecurring basis |  | $ 11,530,000 | $ 19,092,000
[1] | Represents carrying value and related write-downs for which adjustments are based on the estimated value of the property or other assets.

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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=36462937&loc=d3e19207-110258 + Details
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