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Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012
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Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | $ 43,608 | $ 47,731
Interest Deferral [Member] | Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 0 | 0
Interest Deferral [Member] | Real Estate Construction Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 0 | 0
Interest Deferral [Member] | Commercial Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,464 | 1,685
Interest Deferral [Member] | Residential Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 249 | 275
Interest Deferral [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,713 | 1,960
Principal Deferral [Member] | Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 3,026 | 912
Principal Deferral [Member] | Real Estate Construction Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 16,199 | 16,767
Principal Deferral [Member] | Commercial Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,640 | 2,817
Principal Deferral [Member] | Residential Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 2,241 | 2,010
Principal Deferral [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 23,106 | 22,506
Rate Reduction and Forgiveness of Principal [Member] | Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,391 | 1,518
Rate Reduction and Forgiveness of Principal [Member] | Real Estate Construction Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 0 | 0
Rate Reduction and Forgiveness of Principal [Member] | Commercial Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 0 | 0
Rate Reduction and Forgiveness of Principal [Member] | Residential Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 0 | 0
Rate Reduction and Forgiveness of Principal [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,391 | 1,518
Rate Reduction and Payment Deferral [Member] | Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 0 | 0
Rate Reduction and Payment Deferral [Member] | Real Estate Construction Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 9,301 | 0
Rate Reduction and Payment Deferral [Member] | Commercial Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 6,677 | 5,076
Rate Reduction and Payment Deferral [Member] | Residential Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,420 | 760
Rate Reduction and Payment Deferral [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 17,398 | 5,836
Rate Reduction [Member] | Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs |  | 0
Rate Reduction [Member] | Real Estate Construction Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs |  | 9,579
Rate Reduction [Member] | Commercial Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs |  | 5,746
Rate Reduction [Member] | Residential Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs |  | 586
Rate Reduction [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs |  | 15,911
Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 4,417 | 2,430
Real Estate Construction Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 25,500 | 26,346
Commercial Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 9,781 | 15,324
Residential Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | $ 3,910 | $ 3,631

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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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