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Note 7 - Loans (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Financing Receivable, Impaired [Line Items] |  |  |  |
Impaired Loans - Average Recorded Investment | $ 190,744 | $ 216,938 | $ 192,752 | $ 226,841
Impaired Loans - Interest Income Recognized | 1,552 | 1,069 | 4,507 | 4,110
Commercial Loans [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Impaired Loans - Average Recorded Investment | 21,706 | 32,187 | 26,741 | 24,873
Impaired Loans - Interest Income Recognized | 205 | 166 | 636 | 395
Real Estate Construction Loans [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Impaired Loans - Average Recorded Investment | 33,276 | 34,946 | 33,459 | 39,014
Impaired Loans - Interest Income Recognized | 66 | 67 | 198 | 199
Commercial Mortgage Loans [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Impaired Loans - Average Recorded Investment | 119,611 | 132,921 | 114,663 | 145,380
Impaired Loans - Interest Income Recognized | 1,153 | 730 | 3,310 | 3,289
Residential Mortgage And Equity Lines Member |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Impaired Loans - Average Recorded Investment | 16,151 | 16,884 | 17,889 | 17,574
Impaired Loans - Interest Income Recognized | $ 128 | $ 106 | $ 363 | $ 227

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- Definition Average 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 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524 + Details
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