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Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans and Associated Reserves - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014 | Jun. 30, 2014
--- | --- | --- | ---
Consumer Real Estate(2) |  |  |  |  |  |
Total loans, principal balance | [1] | $ 15,089 |  | $ 15,434 |  |
Total loans, recorded investment |  | 14,685 | [1],[2] | 15,121 | [1],[2] | $ 11,144
Total loans, recorded investment for which there is no related allowance |  | 12,182 | [1],[2] | 7,615 | [1],[2] | 8,155
Total loans, recorded investment for which there is a related allowance |  | 2,503 | [1],[2] | 7,506 | [1],[2] | 2,989
Total loans, related allowance |  | 151 | [1] | 282 | [1] | $ 291
Consumer Real Estate Portfolio Segment [Member] | Closed-end First Liens [Member] |  |  |  |  |  |
Consumer Real Estate(2) |  |  |  |  |  |
Total loans, principal balance | [1] | 520 |  | 530 |  |
Total loans, recorded investment | [1],[2] | 493 |  | 503 |  |
Total loans, recorded investment for which there is no related allowance | [1],[2] | 308 |  | 311 |  |
Total loans, recorded investment for which there is a related allowance | [1],[2] | 185 |  | 192 |  |
Total loans, related allowance | [1] | 2 |  | 2 |  |
Consumer Real Estate Portfolio Segment [Member] | Closed-end Junior Liens [Member] |  |  |  |  |  |
Consumer Real Estate(2) |  |  |  |  |  |
Total loans, principal balance | [1] | 229 |  | 239 |  |
Total loans, recorded investment | [1],[2] | $ 229 |  | $ 239 |  |
Total loans, recorded investment for which there is no related allowance | [1],[2] |  |  |  |  |
Total loans, recorded investment for which there is a related allowance | [1],[2] | $ 229 |  | $ 239 |  |
Total loans, related allowance | [1] | 7 |  | 8 |  |
Consumer Real Estate Portfolio Segment [Member] | Investor-owned Residential Real Estate [Member] |  |  |  |  |  |
Consumer Real Estate(2) |  |  |  |  |  |
Total loans, principal balance | [1] | 76 |  | 77 |  |
Total loans, recorded investment | [1],[2] | $ 76 |  | $ 77 |  |
Total loans, recorded investment for which there is no related allowance | [1],[2] |  |  |  |  |
Total loans, recorded investment for which there is a related allowance | [1],[2] | $ 76 |  | $ 77 |  |
Total loans, related allowance | [1] | 4 |  | 4 |  |
Commercial Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] |  |  |  |  |  |
Consumer Real Estate(2) |  |  |  |  |  |
Total loans, principal balance | [1] | 2,902 |  | 2,911 |  |
Total loans, recorded investment | [1],[2] | 2,672 |  | 2,735 |  |
Total loans, recorded investment for which there is no related allowance | [1],[2] | 868 |  | 868 |  |
Total loans, recorded investment for which there is a related allowance | [1],[2] | 1,804 |  | 1,866 |  |
Total loans, related allowance | [1] | 123 |  | 170 |  |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |  |
Consumer Real Estate(2) |  |  |  |  |  |
Total loans, principal balance | [1] | 4,815 |  | 4,919 |  |
Total loans, recorded investment | [1],[2] | 4,755 |  | 4,821 |  |
Total loans, recorded investment for which there is no related allowance | [1],[2] | 4,564 |  | 3,314 |  |
Total loans, recorded investment for which there is a related allowance | [1],[2] | 191 |  | 1,508 |  |
Total loans, related allowance | [1] | 15 |  | 74 |  |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Other [Member] |  |  |  |  |  |
Consumer Real Estate(2) |  |  |  |  |  |
Total loans, principal balance | [1] | 6,035 |  | 6,080 |  |
Total loans, recorded investment | [1],[2] | 5,948 |  | 6,068 |  |
Total loans, recorded investment for which there is no related allowance | [1],[2] | $ 5,948 |  | 3,072 |  |
Total loans, recorded investment for which there is a related allowance | [1],[2] |  |  | 2,996 |  |
Total loans, related allowance | [1] |  |  | 14 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |  |
Consumer Real Estate(2) |  |  |  |  |  |
Total loans, principal balance | [1] | $ 512 |  | 678 |  |
Total loans, recorded investment | [1],[2] | 512 |  | 678 |  |
Total loans, recorded investment for which there is no related allowance | [1],[2] | 494 |  | 50 |  |
Total loans, recorded investment for which there is a related allowance | [1],[2] | $ 18 |  | 628 |  |
Total loans, related allowance | [1] |  |  | $ 10 |  |
[1] | Only classes with impaired loans are shown.
[2] | Recorded investment is net of charge-offs and interest paid while a loan is in nonaccrual status.

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- Definition 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 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953550-111524 + Details
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- Definition Amount of allowance for credit losses related to recorded investment. + 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 (a)(3) -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524 + Details
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