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Note 7 - Loans (Details) - Average Balance And Interest Income Recognized Related To Impaired Loans (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Financing Receivable, Impaired [Line Items] |  |  |  |
Impaired Loans - Average Recorded Investment | $ 219,639 | $ 274,757 | $ 231,875 | $ 294,468
Impaired Loans - Interest Income Recognized | 1,763 | 2,030 | 3,410 | 3,474
Commercial Loans Member |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Impaired Loans - Average Recorded Investment | 20,196 | 29,970 | 21,156 | 37,556
Impaired Loans - Interest Income Recognized | 89 | 32 | 200 | 62
Real Estate Construction Loans [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Impaired Loans - Average Recorded Investment | 40,108 | 45,775 | 41,082 | 56,115
Impaired Loans - Interest Income Recognized | 66 | 111 | 132 | 221
Commercial Mortgage Loans [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Impaired Loans - Average Recorded Investment | 141,285 | 179,835 | 151,713 | 182,351
Impaired Loans - Interest Income Recognized | 1,501 | 1,849 | 2,863 | 3,115
Residential Mortgage And Equity Lines Member |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Impaired Loans - Average Recorded Investment | 18,050 | 19,177 | 17,924 | 18,446
Impaired Loans - Interest Income Recognized | $ 107 | $ 38 | $ 215 | $ 76

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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=28368275&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=28368275&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=28368275&loc=d3e5212-111524 + Details
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