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Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized (USD $) In Thousands, unless otherwise specified | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | $ 15,974 | [1],[2] | $ 17,357 | [1] | $ 16,654 | [1],[2],[3]
Interest income recognized | 384 | [2] | 159 |  | 267 | [2]
Residential Closed End First Liens [Member] | Consumer Real Estate Loans [Member] |  |  |  |  |  |
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 385 | [1],[2] |  |  | 364 | [2],[3]
Interest income recognized | 19 | [2] |  |  | 3 | [2]
Residential Closed End Junior Liens [Member] | Consumer Real Estate Loans [Member] |  |  |  |  |  |
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 251 | [1],[2] |  |  | 280 | [2],[3]
Interest income recognized | 12 | [2] |  |  | 9 | [2]
Investor-Owned Residential Real Estate [Member] | Consumer Real Estate Loans [Member] |  |  |  |  |  |
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 78 | [1],[2] |  |  | 131 | [2],[3]
Interest income recognized | 4 | [2] |  |  | 6 | [2]
Multifamily Real Estate [Member] | Commercial Real Estate Loans [Member] |  |  |  |  |  |
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 2,807 | [1],[2] |  |  | 4,172 | [2],[3]
Interest income recognized |  | [2] |  |  |  | [2]
Commercial Real Estate, Owner Occupied [Member] | Commercial Real Estate Loans [Member] |  |  |  |  |  |
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 5,606 | [1],[2] |  |  | 5,265 | [2],[3]
Interest income recognized | 153 | [2] |  |  | 136 | [2]
Commercial Real Estate, Other [Member] | Commercial Real Estate Loans [Member] |  |  |  |  |  |
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 6,134 | [1],[2] |  |  | 3,369 | [2],[3]
Interest income recognized | 164 | [2] |  |  | 110 | [2]
Commercial and Industrial [Member] | Commercial Non Real Estate [Member] |  |  |  |  |  |
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment | 713 | [1],[2] |  |  | 117 | [2],[3]
Interest income recognized | 32 | [2] |  |  | 3 | [2]
Automobile [Member] | Consumer Non Real Estate [Member] |  |  |  |  |  |
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  | [1],[2] |  |  | 31 | [2],[3]
Interest income recognized |  | [2] |  |  |  | [2]
Construction Residential [Member] | Real Estate Construction [Member] |  |  |  |  |  |
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 40 | [2],[3]
Interest income recognized |  |  |  |  |  | [2]
Construction Other [Member] | Real Estate Construction [Member] |  |  |  |  |  |
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items] |  |  |  |  |  |
Average recorded investment |  |  |  |  | 2,885 | [2],[3]
Interest income recognized |  |  |  |  |  | [2]
[1] | Recorded investment is net of charge-offs and interest paid while a loan is in nonaccrual status.
[2] | Only classes with impaired loans are shown.
[3] | Recorded investment includes principal net of unearned interest and deferred fees and costs, and accrued interest.

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524 + Details
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