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Note 11 - Fair Value Measurements (Details) - Assets and Liabilities Measured on a Non-Recurring Basis (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 | Dec. 31, 2012
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | $ 78,657 |  |  |  | $ 78,657 |  |  |  | $ 116,001 |  |  |
Total losses / (Gains) | 548 |  | 749 |  | 1,158 |  | 214 |  | 3,344 |  | 12,666 |
Commercial Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 4,255 |  |  |  | 4,255 |  |  |  | 7,584 |  |  |
Commercial Loans [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 4,255 |  |  |  | 4,255 |  |  |  | 7,584 |  |  |
Total losses / (Gains) |  |  |  |  | 17 |  | 536 |  | 5,731 |  |  |
Commercial Mortgage Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 24,974 |  |  |  | 24,974 |  |  |  | 29,001 |  |  |
Commercial Mortgage Loans [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 24,974 |  |  |  | 24,974 |  |  |  | 29,001 |  |  |
Total losses / (Gains) | 515 |  | 394 |  | 515 |  | 459 |  | 125 |  | 440 |
Real Estate Construction Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 12,773 |  |  |  | 12,773 |  |  |  |  |  |  |
Real Estate Construction Loans [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 12,773 |  |  |  | 12,773 |  |  |  |  |  |  |
Residential Mortgage And Equity Lines Member | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 12,507 |  |  |  | 12,507 |  |  |  | 14,236 |  |  |
Residential Mortgage And Equity Lines Member | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 12,507 |  |  |  | 12,507 |  |  |  | 14,236 |  |  |
Total losses / (Gains) | 32 |  | 160 |  | 32 |  | 191 |  | 213 |  | 605 |
Fair Value, Inputs, Level 1 [Member] | Other Real Estate Owned [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis |  | [1] |  |  |  | [1] |  |  |  | [2] |  |
Fair Value, Inputs, Level 1 [Member] | Equity Investments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis |  |  |  |  |  |  |  |  | 642 |  |  |
Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis |  |  |  |  |  |  |  |  | 642 |  |  |
Fair Value, Inputs, Level 2 [Member] | Other Real Estate Owned [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 14,340 | [1] |  |  | 14,340 | [1] |  |  | 13,248 | [2] |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 14,340 |  |  |  | 14,340 |  |  |  | 13,248 |  |  |
Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 54,509 |  |  |  | 54,509 |  |  |  | 66,713 |  |  |
Fair Value, Inputs, Level 3 [Member] | Other Real Estate Owned [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 4,110 | [1] |  |  | 4,110 | [1] |  |  | 26,498 | [2] |  |
Fair Value, Inputs, Level 3 [Member] | Equity Investments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 5,698 |  |  |  | 5,698 |  |  |  |  |  |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 64,317 |  |  |  | 64,317 |  |  |  | 102,111 |  |  |
Impaired Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 54,509 |  |  |  | 54,509 |  |  |  | 66,713 |  |  |
Total losses / (Gains) | 547 |  | 554 |  | 564 |  | 1,186 |  | 6,069 |  | 1,272 |
Other Real Estate Owned [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 18,450 | [1] |  |  | 18,450 | [1] |  |  | 39,746 | [2] |  |
Total losses / (Gains) | (48) | [1] | 111 | [1] | 277 | [1] | (1,267) | [1] | (3,134) | [2] | 10,904 | [2]
Equity Investments [Member] |  |  |  |  |  |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Assets measured on a non-recurring basis | 5,698 |  |  |  | 5,698 |  |  |  | 642 |  |  |
Total losses / (Gains) | $ 49 |  | $ 84 |  | $ 317 |  | $ 295 |  |  |  | $ 181 |
[1] | Other real estate owned balance of $29.0 million in the condensed consolidated balance sheet is net of estimated disposal costs.
[2] | Other real estate owned balance of $53.0 million in the consolidated balance sheet is net of estimated disposal costs.

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228 + Details
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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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