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Note 3 - Loans and Allowance for Loan Losses (Details) - Components of Loan Portfolio Disaggregated by Class of Loan and Percentage Change in Total Loans (USD $) | Mar. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2013
--- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans- Balance (in Dollars) | $ 1,066,796,000 | $ 1,053,243,000 | $ 1,022,956,000
Loans- Percentage | 100.00% | 100.00% |
Loans-Percent Increase (Decrease) | 1.30% |  |
Commercial and Industrial [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans- Balance (in Dollars) | 289,009,000 | 286,373,000 |
Loans- Percentage | 27.10% | 27.20% |
Loans-Percent Increase (Decrease) | 0.90% |  |
Commercial Vacant Land And Land Development And Residential Construction Loan [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans- Balance (in Dollars) | 37,190,000 | 36,741,000 |
Loans- Percentage | 3.50% | 3.50% |
Loans-Percent Increase (Decrease) | 1.20% |  |
Commercial Real Estate Owner Occupied Loan [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans- Balance (in Dollars) | 264,299,000 | 261,877,000 |
Loans- Percentage | 24.80% | 24.90% |
Loans-Percent Increase (Decrease) | 0.90% |  |
Commercial Real Estate Non Owner Occupied Loan [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans- Balance (in Dollars) | 378,034,000 | 364,066,000 |
Loans- Percentage | 35.40% | 34.60% |
Loans-Percent Increase (Decrease) | 3.80% |  |
Commercial Real Estate Multi Family And Residential Rental Loan [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans- Balance (in Dollars) | 35,686,000 | 37,639,000 |
Loans- Percentage | 3.30% | 3.50% |
Loans-Percent Increase (Decrease) | (5.20%) |  |
Commercial [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans- Balance (in Dollars) | 1,004,218,000 | 986,696,000 |
Loans- Percentage | 94.10% | 93.70% |
Loans-Percent Increase (Decrease) | 1.80% |  |
Retail Home Equity And Other Loan [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans- Balance (in Dollars) | 31,778,000 | 35,080,000 |
Loans- Percentage | 3.00% | 3.30% |
Loans-Percent Increase (Decrease) | (9.40%) |  |
Retail Family Mortgages Loan [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans- Balance (in Dollars) | 30,800,000 | 31,467,000 |
Loans- Percentage | 2.90% | 3.00% |
Loans-Percent Increase (Decrease) | (2.10%) |  |
Retail Loan [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans- Balance (in Dollars) | $ 62,578,000 | $ 66,547,000 |
Loans- Percentage | 5.90% | 6.30% |
Loans-Percent Increase (Decrease) | (6.00%) |  |

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- Definition Loan portfolio classes and segments as a percentage of aggregate loans. + References No definition available. + Details
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- Definition Loans and leases receivable net of deferred income increase decrease percentage. + References No definition available. + Details
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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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