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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 | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Mar. 31, 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 | $ 13,075 | [1],[2] | $ 17,935 | [1] | $ 16,654 | [1],[2]
Interest income recognized | 99 | [2] | 10 |  | 267 | [2]
Consumer Real Estate Loans [Member] | Residential closed end first liens [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 | 561 | [1],[2] |  |  | 364 | [1],[2]
Interest income recognized | 4 | [2] |  |  | 3 | [2]
Consumer Real Estate Loans [Member] | Residential closed end junior liens [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 | 257 | [1],[2] |  |  | 280 | [1],[2]
Interest income recognized | 5 | [2] |  |  | 9 | [2]
Consumer Real Estate Loans [Member] | Investor-owned residential 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 | 79 | [1],[2] |  |  | 131 | [1],[2]
Interest income recognized | 1 | [2] |  |  | 6 | [2]
Commercial Real Estate Loans [Member] | Multifamily 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 | 3,386 | [1],[2] |  |  | 4,172 | [1],[2]
Interest income recognized |  | [2] |  |  |  | [2]
Commercial Real Estate Loans [Member] | Commercial real estate, owner occupied [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 | 5,515 | [1],[2] |  |  | 5,265 | [1],[2]
Interest income recognized | 44 | [2] |  |  | 136 | [2]
Commercial Real Estate Loans [Member] | Commercial real estate, other [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 | 3,150 | [1],[2] |  |  | 3,369 | [1],[2]
Interest income recognized | 44 | [2] |  |  | 110 | [2]
Commercial Non Real Estate [Member] | Commercial and Industrial [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 | 101 | [1],[2] |  |  | 117 | [1],[2]
Interest income recognized | 1 | [2] |  |  | 3 | [2]
Consumer Non Real Estate [Member] | Automobile [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 | 26 | [1],[2] |  |  | 31 | [1],[2]
Interest income recognized |  | [2] |  |  |  | [2]
Real Estate Construction [Member] | Construction residential [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 | [1],[2]
Interest income recognized |  |  |  |  |  | [2]
Real Estate Construction [Member] | Construction other [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 | [1],[2]
Interest income recognized |  |  |  |  |  | [2]
[1] | Recorded investment includes principal net of unearned interest and deferred fees and costs, and accrued interest.
[2] | Only classes with impaired loans are shown.

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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=28368275&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=28368275&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=28368275&loc=d3e5212-111524 + Details
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