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Note 3 - Loans and Allowance for Loan Losses (Details) - The Allowance Related to Loans Categorized as Troubled Debt Restructurings (USD $) | Mar. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | --- | --- | ---
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | $ 20,954,000 | $ 22,821,000 | $ 26,035,000 | $ 28,677,000
Commercial and Industrial [Member] | Financing Receivable Troubled Debt Restructuring [Member] |  |  |  |
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | 95,000 | 187,000 |  |
Vacant Land,Land Developement and Residential Construction [Member] | Financing Receivable Troubled Debt Restructuring [Member] |  |  |  |
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | 695,000 | 798,000 |  |
Commercial Real Estate Owner Occupied Loan [Member] | Financing Receivable Troubled Debt Restructuring [Member] |  |  |  |
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | 455,000 | 528,000 |  |
Commercial Real Estate Non Owner Occupied Loan [Member] | Financing Receivable Troubled Debt Restructuring [Member] |  |  |  |
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | 7,236,000 | 7,828,000 |  |
Commercial Real Estate Multi Family And Residential Rental Loan [Member] | Financing Receivable Troubled Debt Restructuring [Member] |  |  |  |
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | 304,000 | 1,010,000 |  |
Commercial [Member] | Financing Receivable Troubled Debt Restructuring [Member] |  |  |  |
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | 8,785,000 | 10,351,000 |  |
Home Equity and Other [Member] | Financing Receivable Troubled Debt Restructuring [Member] |  |  |  |
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | 0 | 0 |  |
Retail 1-4 Family Mortgages [Member] | Financing Receivable Troubled Debt Restructuring [Member] |  |  |  |
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | 32,000 | 0 |  |
Retail [Member] | Financing Receivable Troubled Debt Restructuring [Member] |  |  |  |
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | 32,000 | 0 |  |
Financing Receivable Troubled Debt Restructuring [Member] |  |  |  |
Commercial: |  |  |  |
Allowance for losses, troubled debt restructurings | $ 8,817,000 | $ 10,351,000 |  |

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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524 + Details
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