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Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings (Non Accruing Troubled Debt Restructuring Member, USD $) | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
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Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | $ 38,769,000 | $ 47,731,000 | $ 50,870,000
Interest Deferral [Member] | Commercial Mortgage Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 1,443,000 | 1,685,000 |
Interest Deferral [Member] | Residential Mortgage Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 241,000 | 275,000 |
Interest Deferral [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 1,684,000 | 1,960,000 |
Principal Deferral [Member] | Commercial Loans Member |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 2,866,000 | 912,000 | 616,000
Principal Deferral [Member] | Real Estate Construction Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 16,009,000 | 16,767,000 | 13,579,000
Principal Deferral [Member] | Commercial Mortgage Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 2,168,000 | 2,817,000 | 9,727,000
Principal Deferral [Member] | Residential Mortgage Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 2,206,000 | 2,010,000 | 2,427,000
Principal Deferral [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 23,249,000 | 22,506,000 | 26,349,000
Rate Reduction [Member] | Commercial Loans Member |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs |  |  | 1,859,000
Rate Reduction [Member] | Real Estate Construction Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs |  | 9,579,000 | 12,376,000
Rate Reduction [Member] | Commercial Mortgage Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs |  | 5,746,000 |
Rate Reduction [Member] | Residential Mortgage Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs |  | 586,000 | 449,000
Rate Reduction [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs |  | 15,911,000 | 14,684,000
Rate Reduction and Forgiveness of Principal [Member] | Commercial Loans Member |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 1,352,000 | 1,518,000 | 1,506,000
Rate Reduction and Forgiveness of Principal [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 1,352,000 | 1,518,000 | 1,506,000
Rate Reduction and Payment Deferral [Member] | Real Estate Construction Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 9,263,000 |  |
Rate Reduction and Payment Deferral [Member] | Commercial Mortgage Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 1,843,000 | 5,076,000 | 5,076,000
Rate Reduction and Payment Deferral [Member] | Residential Mortgage Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 1,378,000 | 760,000 | 311,000
Rate Reduction and Payment Deferral [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 12,484,000 | 5,836,000 | 5,387,000
Commercial Loans Member |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 4,218,000 | 2,430,000 | 3,981,000
Real Estate Construction Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 25,272,000 | 26,346,000 | 25,955,000
Commercial Mortgage Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | 5,454,000 | 15,324,000 | 17,436,000
Residential Mortgage Loans [Member] |  |  |
Note 5 - Loans (Details) - Non-accrual Troubled Debt Restructurings [Line Items] |  |  |
Non-accrual TDRs | $ 3,825,000 | $ 3,631,000 | $ 3,498,000

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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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