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Note 7 - Loans (Details) - Impaired Loans and Related Allowance for Credit Losses (USD $) In Thousands, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013
--- | --- | ---
With allocated allowance |  |
Allowance | $ 14,495 | $ 13,284
Total impaired loans | 222,684 | 263,848
Total impaired loans | 189,311 | 200,780
Total impaired loans | 14,495 | 13,284
Commercial Loans [Member] |  |
With no allocated allowance |  |
Loans with no related allowance unpaid principal balance | 14,001 | 20,992
Loans with no related allowance recorded investment | 11,914 | 18,905
Real Estate Construction Loans [Member] |  |
With no allocated allowance |  |
Loans with no related allowance unpaid principal balance | 25,157 | 25,401
Loans with no related allowance recorded investment | 14,854 | 15,097
Commercial Mortgage Loans [Member] |  |
With no allocated allowance |  |
Loans with no related allowance unpaid principal balance | 73,274 | 105,593
Loans with no related allowance recorded investment | 71,934 | 78,930
Residential Mortgage And Equity Lines Member |  |
With no allocated allowance |  |
Loans with no related allowance unpaid principal balance | 4,876 | 4,892
Loans with no related allowance recorded investment | 4,876 | 4,892
With No Allocated Allowance Member |  |
With no allocated allowance |  |
Loans with no related allowance unpaid principal balance | 117,308 | 156,878
Loans with no related allowance recorded investment | 103,578 | 117,824
Commercial Loans [Member] |  |
With allocated allowance |  |
Loans with related allowance unpaid principal balance | 27,772 | 22,737
Loans with related allowance recorded investment | 18,099 | 13,063
Allowance | 4,663 | 2,519
Total impaired loans | 4,663 | 2,519
Real Estate Construction Loans [Member] |  |
With allocated allowance |  |
Loans with related allowance unpaid principal balance | 28,158 | 28,475
Loans with related allowance recorded investment | 19,005 | 19,323
Allowance | 3,129 | 3,460
Total impaired loans | 3,129 | 3,460
Commercial Mortgage Loans [Member] |  |
With allocated allowance |  |
Loans with related allowance unpaid principal balance | 35,363 | 39,223
Loans with related allowance recorded investment | 34,979 | 35,613
Allowance | 6,165 | 6,584
Total impaired loans | 6,165 | 6,584
Residential Mortgage And Equity Lines Member |  |
With allocated allowance |  |
Loans with related allowance unpaid principal balance | 14,083 | 16,535
Loans with related allowance recorded investment | 13,650 | 14,957
Allowance | 538 | 721
Total impaired loans | 538 | 721
With Allocated Allowance Member |  |
With allocated allowance |  |
Loans with related allowance unpaid principal balance | 105,376 | 106,970
Loans with related allowance recorded investment | 85,733 | 82,956
Allowance | 14,495 | 13,284
Total impaired loans | $ 14,495 | $ 13,284

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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953550-111524 + Details
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- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524 + Details
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