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Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2012
Impaired loans by type: |  |  |  |  |  |  |  |
Total Losses/(gains) | $ 294 |  | $ 767 |  | $ 3,344 |  | $ 12,666 |
Commercial Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 13,436 |  |  |  | 7,584 |  |  |
Commercial Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 13,436 |  |  |  | 7,584 |  |  |
Commercial Loans [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Total Losses/(gains) |  |  | 463 |  | 5,731 |  |  |
Commercial Mortgage Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 28,784 |  |  |  | 29,001 |  |  |
Commercial Mortgage Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 28,784 |  |  |  | 29,001 |  |  |
Commercial Mortgage Loans [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Total Losses/(gains) |  |  | 41 |  | 125 |  | 440 |
Construction Residential [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 500 |  |  |  | 500 |  |  |
Construction Residential [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 500 |  |  |  | 500 |  |  |
Construction - Other Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 15,376 |  |  |  | 15,363 |  |  |
Construction - Other Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 15,376 |  |  |  | 15,363 |  |  |
Construction - Other Loans [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Total Losses/(gains) |  |  |  |  |  |  | 65 |
Residential Mortgage Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 13,113 |  |  |  | 14,236 |  |  |
Residential Mortgage Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 13,113 |  |  |  | 14,236 |  |  |
Residential Mortgage Loans [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Total Losses/(gains) |  |  | 189 |  | 213 |  | 605 |
Land Loans [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 71,239 |  |  |  | 66,713 |  |  |
Land Loans [Member] | Impaired Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 71,239 |  |  |  | 66,713 |  |  |
Land Loans [Member] | Impaired Loans [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Total Losses/(gains) |  |  | 741 |  | 6,069 |  | 1,272 |
Land Loans [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 30 |  |  |  | 29 |  |  |
Land Loans [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 30 |  |  |  | 29 |  |  |
Land Loans [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Total Losses/(gains) |  |  | 48 |  |  |  | 162 |
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements |  | [1] |  |  |  | [2] |  |
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 18,261 | [1] |  |  | 13,248 | [2] |  |
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 14,337 | [1] |  |  | 26,498 | [2] |  |
Other Real Estate Owned [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 32,598 | [1] |  |  | 39,746 | [2] |  |
Other Real Estate Owned [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Total Losses/(gains) | 183 | [1] | (66) | [1] | (3,134) | [2] | 10,904 | [2]
Investments in Venture Capital [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 5,827 |  |  |  | 8,900 |  |  |
Investments in Venture Capital [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 5,827 |  |  |  | 8,900 |  |  |
Investments in Venture Capital [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Total Losses/(gains) | 111 |  | 92 |  | 409 |  | 309 |
Equity Investments [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 177 |  |  |  | 642 |  |  |
Equity Investments [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 177 |  |  |  | 642 |  |  |
Equity Investments [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Total Losses/(gains) |  |  |  |  |  |  | 181 |
Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 177 |  |  |  | 642 |  |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 18,261 |  |  |  | 13,248 |  |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | 91,403 |  |  |  | 102,111 |  |  |
Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |
Impaired loans by type: |  |  |  |  |  |  |  |
Fair Value Measurements | $ 109,841 |  |  |  | $ 116,001 |  |  |
[1] | Other real estate owned balance of $44.9 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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