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Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Restructured Loans that Defaulted (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of contracts | 0 | 5 | 0 | 6
Principal balance |  | $ 874 |  | $ 1,067
Impairment accrued |  | 353 |  | 353
Consumer Real Estate Loans [Member] | Closed-end First Liens [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of contracts |  | 1 |  | 1
Principal balance |  | 26 |  | 26
Impairment accrued |  | 1 |  | 1
Consumer Real Estate Loans [Member] | Closed-end Junior Liens [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of contracts |  | 1 |  | 1
Principal balance |  | 47 |  | 47
Commercial Real Estate Loans [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of contracts |  | 2 |  | 3
Principal balance |  | 664 |  | 857
Impairment accrued |  | 352 |  | 352
Commercial Real Estate Loans [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Impairment accrued |  | 352 |  |
Commercial Non Real Estate [Member] | Commercial and Industrial [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of contracts |  | 1 |  | 1
Principal balance |  | $ 137 |  | $ 137

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- Definition The aggregate amount provided for impairment loss on a defaulted restructured loan during an accounting period. + References No definition available. + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953682-111524 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953682-111524 + Details
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