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Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Past Due and Nonaccrual Loans (USD $) In Thousands, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2013
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Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | $ 4,508 | [1] | $ 2,956 | [1] |
90 or More Days Past Due | 2,671 | [1] | 6,268 | [1] |
90 or More Days Past Due and Still Accruing | 485 | [1] | 190 | [1] | 149
Nonaccruals (Including Impaired Nonaccruals) | 7,726 | [1] | 6,584 | [1] | 11,236
Construction Other [Member] | Real Estate Construction [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 29 | [1] | 45 | [1] |
90 or More Days Past Due |  | [1] |  | [1] |
90 or More Days Past Due and Still Accruing |  | [1] |  | [1] |
Nonaccruals (Including Impaired Nonaccruals) |  | [1] |  | [1] |
Equity Lines [Member] | Consumer Real Estate [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 46 | [1] |  |  |
90 or More Days Past Due |  | [1] |  |  |
90 or More Days Past Due and Still Accruing |  | [1] |  |  |
Nonaccruals (Including Impaired Nonaccruals) |  | [1] |  |  |
Residential Closed End First Liens [Member] | Consumer Real Estate [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 1,605 | [1] | 903 | [1] |
90 or More Days Past Due | 556 | [1] | 252 | [1] |
90 or More Days Past Due and Still Accruing | 457 | [1] | 128 | [1] |
Nonaccruals (Including Impaired Nonaccruals) | 176 | [1] | 308 | [1] |
Residential Closed End Junior Liens [Member] | Consumer Real Estate [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 67 | [1] | 10 | [1] |
90 or More Days Past Due |  | [1] |  | [1] |
90 or More Days Past Due and Still Accruing |  | [1] |  | [1] |
Nonaccruals (Including Impaired Nonaccruals) |  | [1] |  | [1] |
Investor-Owned Residential Real Estate [Member] | Consumer Real Estate [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 284 | [1] | 422 | [1] |
90 or More Days Past Due |  | [1] | 91 | [1] |
90 or More Days Past Due and Still Accruing |  | [1] |  | [1] |
Nonaccruals (Including Impaired Nonaccruals) | 15 | [1] | 91 | [1] |
Multifamily Real Estate [Member] | Commercial Real Estate Loans [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 715 | [1] | 430 | [1] |
90 or More Days Past Due | 868 | [1] | 3,278 | [1] |
90 or More Days Past Due and Still Accruing |  | [1] |  | [1] |
Nonaccruals (Including Impaired Nonaccruals) | 2,794 | [1] | 3,278 | [1] |
Commercial Real Estate, Owner Occupied [Member] | Commercial Real Estate Loans [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 350 | [1] | 604 | [1] |
90 or More Days Past Due | 1,219 | [1] | 2,519 | [1] |
90 or More Days Past Due and Still Accruing |  | [1] |  | [1] |
Nonaccruals (Including Impaired Nonaccruals) | 1,653 | [1] | 2,756 | [1] |
Commercial Real Estate, Other [Member] | Commercial Real Estate Loans [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due |  | [1] | 32 | [1] |
90 or More Days Past Due |  | [1] |  | [1] |
90 or More Days Past Due and Still Accruing |  | [1] |  | [1] |
Nonaccruals (Including Impaired Nonaccruals) | 2,974 | [1] |  | [1] |
Commercial and Industrial [Member] | Commercial Non Real Estate [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 1,102 | [1] | 196 | [1] |
90 or More Days Past Due |  | [1] | 43 | [1] |
90 or More Days Past Due and Still Accruing |  | [1] |  | [1] |
Nonaccruals (Including Impaired Nonaccruals) | 114 | [1] | 128 | [1] |
Credit Card Receivable [Member] | Consumer Non Real Estate [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 12 | [1] | 3 | [1] |
90 or More Days Past Due | 6 | [1] | 13 | [1] |
90 or More Days Past Due and Still Accruing | 6 | [1] | 13 | [1] |
Nonaccruals (Including Impaired Nonaccruals) |  | [1] |  | [1] |
Automobile [Member] | Consumer Non Real Estate [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 234 | [1] | 217 | [1] |
90 or More Days Past Due | 20 | [1] | 26 | [1] |
90 or More Days Past Due and Still Accruing | 20 | [1] | 2 | [1] |
Nonaccruals (Including Impaired Nonaccruals) |  | [1] | 23 | [1] |
Other Consumer Loans [Member] | Consumer Non Real Estate [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due | 64 | [1] | 49 | [1] |
90 or More Days Past Due | 2 | [1] | 46 | [1] |
90 or More Days Past Due and Still Accruing | 2 | [1] | 47 | [1] |
Nonaccruals (Including Impaired Nonaccruals) |  | [1] |  | [1] |
Construction Residential [Member] | Real Estate Construction [Member] |  |  |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |  |  |
30 – 89 Days Past Due |  |  | 45 | [1] |
90 or More Days Past Due |  |  |  | [1] |
90 or More Days Past Due and Still Accruing |  |  |  | [1] |
Nonaccruals (Including Impaired Nonaccruals) |  |  |  | [1] |
[1] | Only classes with past-due or nonaccrual loans are shown.

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- Definition Financing receivables that are less than 90 days past due but more than 29 days past due. + References No definition available. + Details
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- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524 + Details
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- Definition Financing receivables that are equal to or greater than 90 days past due. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953401-111524 + Details
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- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524 + Details
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