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Note 7 - Loans (Details) - Troubled Debt Restructuring by Type of Concession and Type of Loans (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012
--- | --- | ---
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | $ 43,608 | $ 47,731
Accruing Troubled Debt Restructuring [Member] | Principal Deferral [Member] | Commercial Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 4,813 | 531
Accruing Troubled Debt Restructuring [Member] | Principal Deferral [Member] | Real Estate Construction Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 0 | 0
Accruing Troubled Debt Restructuring [Member] | Principal Deferral [Member] | Commercial Mortgage Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 12,740 | 27,003
Accruing Troubled Debt Restructuring [Member] | Principal Deferral [Member] | Residential Construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 1,573 | 1,461
Accruing Troubled Debt Restructuring [Member] | Principal Deferral [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 19,126 | 28,995
Accruing Troubled Debt Restructuring [Member] | Rate Reduction [Member] | Commercial Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 2,943 | 3,020
Accruing Troubled Debt Restructuring [Member] | Rate Reduction [Member] | Real Estate Construction Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 0 | 0
Accruing Troubled Debt Restructuring [Member] | Rate Reduction [Member] | Commercial Mortgage Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 9,130 | 16,656
Accruing Troubled Debt Restructuring [Member] | Rate Reduction [Member] | Residential Construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 1,588 | 1,024
Accruing Troubled Debt Restructuring [Member] | Rate Reduction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 13,661 | 20,700
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Payment Deferral [Member] | Commercial Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 2,788 | 413
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Payment Deferral [Member] | Real Estate Construction Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 5,833 | 5,834
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Payment Deferral [Member] | Commercial Mortgage Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 70,991 | 85,783
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Payment Deferral [Member] | Residential Construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 3,541 | 2,231
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Payment Deferral [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 83,153 | 94,261
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Forgiveness of Principal [Member] | Commercial Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs |  | 0
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Forgiveness of Principal [Member] | Real Estate Construction Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs |  | 0
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Forgiveness of Principal [Member] | Commercial Mortgage Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs |  | 739
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Forgiveness of Principal [Member] | Residential Construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs |  | 0
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Forgiveness of Principal [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs |  | 739
Accruing Troubled Debt Restructuring [Member] | Commercial Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 10,544 | 3,964
Accruing Troubled Debt Restructuring [Member] | Real Estate Construction Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 5,833 | 5,834
Accruing Troubled Debt Restructuring [Member] | Commercial Mortgage Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 92,861 | 130,181
Accruing Troubled Debt Restructuring [Member] | Residential Construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 6,702 | 4,716
Accruing Troubled Debt Restructuring [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 115,940 | 144,695
Commercial Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 4,417 | 2,430
Real Estate Construction Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | 25,500 | 26,346
Commercial Mortgage Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing TDRs | $ 9,781 | $ 15,324

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- Definition The amount of the outstanding recorded investment related to 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 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554 + Details
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