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Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings (USD $) In Thousands, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013
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Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | $ 37,797 |
Interest Deferral [Member] | Commercial Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,407 | 1,443
Interest Deferral [Member] | Residential Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 231 | 241
Interest Deferral [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,638 | 1,684
Principal Deferral [Member] | Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 2,867 | 2,866
Principal Deferral [Member] | Real Estate Construction Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 15,692 | 16,009
Principal Deferral [Member] | Commercial Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 2,153 | 2,168
Principal Deferral [Member] | Residential Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,681 | 2,206
Principal Deferral [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 22,393 | 23,249
Rate Reduction and Forgiveness of Principal [Member] | Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,307 |
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 |  | 9,263
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 |  | 1,843
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 | 219 | 1,378
Rate Reduction and Forgiveness of Principal [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,526 | 12,484
Rate Reduction and Payment Deferral [Member] | Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs |  | 4,218
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 | 9,037 | 25,272
Rate Reduction and Payment Deferral [Member] | Commercial Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,843 | 5,454
Rate Reduction and Payment Deferral [Member] | Residential Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 1,360 | 3,825
Rate Reduction and Payment Deferral [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 12,240 | 38,769
Rate Reduction [Member] | Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs |  | 1,352
Rate Reduction [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs |  | 1,352
Commercial Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 4,174 |
Real Estate Construction Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 24,729 |
Commercial Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | 5,403 |
Residential Mortgage Loans [Member] |  |
Note 7 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |
Non-accrual TDRs | $ 3,491 |

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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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