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Note 7 - Loans (Details) (USD $) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012
Note 7 - Loans (Details) [Line Items] |  |  |  |  |
Impaired Financing Receivable, Recorded Investment | $ 215,801,000 |  | $ 215,801,000 |  | $ 248,597,000
Percentage Of Charge-Off To Contractual Balances For Impaired Loans | 22.20% |  | 22.20% |  | 23.20%
Nonaccrual Loans [Member] |  |  |  |  |
Note 7 - Loans (Details) [Line Items] |  |  |  |  |
Impaired Financing Receivable, Recorded Investment | 99,900,000 |  | 99,900,000 |  | 103,900,000
Accruing Troubled Debt Restructuring [Member] |  |  |  |  |
Note 7 - Loans (Details) [Line Items] |  |  |  |  |
Impaired Financing Receivable, Recorded Investment | 115,900,000 |  | 115,900,000 |  | 144,700,000
Reduction Of Stated Interest Rate Member | Minimum [Member] |  |  |  |  |
Note 7 - Loans (Details) [Line Items] |  |  |  |  |
Troubled Debt Restructurings Length of Modifications | 12 months |  | 12 months |  |
Reduction Of Stated Interest Rate Member | Maximum [Member] |  |  |  |  |
Note 7 - Loans (Details) [Line Items] |  |  |  |  |
Troubled Debt Restructurings Length of Modifications | 3 years |  | 3 years |  |
Land Loan [Member] |  |  |  |  |
Note 7 - Loans (Details) [Line Items] |  |  |  |  |
Financing Receivable Modification Number Of Contracts Defaulted Within 12 Months | 2 |  | 2 |  |
Financing Receivable Modifications Recorded Investment Defaulted Within 12 Months |  |  | 1,400,000 |  |
Accruing Troubled Debt Restructuring [Member] |  |  |  |  |
Note 7 - Loans (Details) [Line Items] |  |  |  |  |
Troubled Debt Restructurings, Total | 115,900,000 |  | 115,900,000 |  | 144,700,000
Impaired Financing Receivable, Modifications, Related Allowance | 6,300,000 |  | 6,300,000 |  | 1,100,000
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down | 0 | (251,000) | (78,000) | (251,000) |
Non Accruing Troubled Debt Restructuring Member |  |  |  |  |
Note 7 - Loans (Details) [Line Items] |  |  |  |  |
Troubled Debt Restructurings, Total | 43,600,000 |  | 43,600,000 |  | 47,700,000
Impaired Financing Receivable, Modifications, Related Allowance | 4,500,000 |  | 4,500,000 |  | 7,800,000
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down | $ (1,188,000) | $ 0 | $ (2,121,000) | $ (4,285,000) |
Minimum [Member] |  |  |  |  |
Note 7 - Loans (Details) [Line Items] |  |  |  |  |
Period Loan Is In Payment Default |  |  | 60 days |  |
Maximum [Member] |  |  |  |  |
Note 7 - Loans (Details) [Line Items] |  |  |  |  |
Period Loan Is In Payment Default |  |  | 90 days |  |

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- Definition Financing receivable modification number of contracts defaulted within 12 months. + References No definition available. + Details
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- Definition Financing receivable modifications recorded investment defaulted within 12 months. + References No definition available. + Details
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- Definition Amount of allowance for credit losses related to recorded investment on modified loans. + References No definition available. + Details
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- Details
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- Definition Percentage of charge-off to contractual balances for impaired loans. + References No definition available. + Details
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- Definition Reflects the amount of the write-down related to a troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554 + Details
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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=28368275&loc=SL6953550-111524 + Details
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