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Note 4 - Loans and Allowance for Loan Losses (Details) - Loans Modified as Troubled Debt Restructurings (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Commercial: |  |  |  |
Loans modified, number of contracts | 4 |  | 6 |
Loans modified, pre-modification recorded principal balance | $ 22,781,000 |  | $ 23,923,000 |
Loans modified, post-modification recorded principal balance | 22,881,000 |  | 24,023,000 |
Commercial and Industrial [Member] | Originated Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 2 | 1 | 2 | 2
Loans modified, pre-modification recorded principal balance | 5,994,000 | 553,000 | 5,994,000 | 613,000
Loans modified, post-modification recorded principal balance | 6,094,000 | 553,000 | 6,094,000 | 613,000
Commercial and Industrial [Member] | Acquired Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Commercial and Industrial [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 2 |  | 2 |
Loans modified, pre-modification recorded principal balance | 5,994,000 |  | 5,994,000 |
Loans modified, post-modification recorded principal balance | 6,094,000 |  | 6,094,000 |
Commercial Vacant Land and Land Development and Residential Construction Loan [Member] | Originated Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 | 0 | 0 | 2
Loans modified, pre-modification recorded principal balance | 0 | 0 | 0 | 3,247,000
Loans modified, post-modification recorded principal balance | 0 | 0 | 0 | 3,247,000
Commercial Vacant Land and Land Development and Residential Construction Loan [Member] | Acquired Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Commercial Vacant Land and Land Development and Residential Construction Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Commercial Real Estate Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 2 | 0 | 3 | 3
Loans modified, pre-modification recorded principal balance | 16,787,000 | 0 | 17,783,000 | 909,000
Loans modified, post-modification recorded principal balance | 16,787,000 | 0 | 17,783,000 | 909,000
Commercial Real Estate Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Commercial Real Estate Owner Occupied Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 2 |  | 3 |
Loans modified, pre-modification recorded principal balance | 16,787,000 |  | 17,783,000 |
Loans modified, post-modification recorded principal balance | 16,787,000 |  | 17,783,000 |
Commercial Real Estate Non Owner Occupied Loan [Member] | Originated Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 | 2 | 1 | 4
Loans modified, pre-modification recorded principal balance | 0 | 171,000 | 146,000 | 2,239,000
Loans modified, post-modification recorded principal balance | 0 | 171,000 | 146,000 | 2,239,000
Commercial Real Estate Non Owner Occupied Loan [Member] | Acquired Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Commercial Real Estate Non Owner Occupied Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 1 |
Loans modified, pre-modification recorded principal balance | 0 |  | 146,000 |
Loans modified, post-modification recorded principal balance | 0 |  | 146,000 |
Commercial Real Estate Multi Family and Residential Rental Loan [Member] | Originated Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 | 2 | 0 | 2
Loans modified, pre-modification recorded principal balance | 0 | 346,000 | 0 | 346,000
Loans modified, post-modification recorded principal balance | 0 | 346,000 | 0 | 346,000
Commercial Real Estate Multi Family and Residential Rental Loan [Member] | Acquired Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Commercial Real Estate Multi Family and Residential Rental Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Commercial Portfolio Segment [Member] | Originated Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 4 | 5 | 6 | 13
Loans modified, pre-modification recorded principal balance | 22,781,000 | 1,070,000 | 23,923,000 | 7,354,000
Loans modified, post-modification recorded principal balance | 22,881,000 | 1,070,000 | 24,023,000 | 7,354,000
Commercial Portfolio Segment [Member] | Acquired Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Commercial Portfolio Segment [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 4 |  | 6 |
Loans modified, pre-modification recorded principal balance | 22,781,000 |  | 23,923,000 |
Loans modified, post-modification recorded principal balance | 22,881,000 |  | 24,023,000 |
Retail Home Equity and Other [Member] | Originated Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 | 0 | 0 | 0
Loans modified, pre-modification recorded principal balance | 0 | 0 | 0 | 0
Loans modified, post-modification recorded principal balance | 0 | 0 | 0 | 0
Retail Home Equity and Other [Member] | Acquired Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Retail Home Equity and Other [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Retail 1-4 Family Mortgages [Member] | Originated Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 | 0 | 0 | 1
Loans modified, pre-modification recorded principal balance | 0 | 0 | 0 | 1,879,000
Loans modified, post-modification recorded principal balance | 0 | 0 | 0 | 1,879,000
Retail 1-4 Family Mortgages [Member] | Acquired Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Retail 1-4 Family Mortgages [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Retail Loan [Member] | Originated Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 | 0 | 0 | 1
Loans modified, pre-modification recorded principal balance | 0 | 0 | 0 | 1,879,000
Loans modified, post-modification recorded principal balance | 0 | 0 | 0 | 1,879,000
Retail Loan [Member] | Acquired Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Retail Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | 0 |  | 0 |
Originated Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 4 | 5 | 6 | 14
Loans modified, pre-modification recorded principal balance | 22,781,000 | 1,070,000 | 23,923,000 | 9,233,000
Loans modified, post-modification recorded principal balance | 22,881,000 | 1,070,000 | 24,023,000 | 9,233,000
Acquired Loan [Member] |  |  |  |
Commercial: |  |  |  |
Loans modified, number of contracts | 0 |  | 0 |
Loans modified, pre-modification recorded principal balance | 0 |  | 0 |
Loans modified, post-modification recorded principal balance | $ 0 |  | $ 0 |

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953676-111524 + Details
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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953676-111524 + Details
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- Definition Pre-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953676-111524 + Details
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