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Note 7 - Loans (Details) - Impaired Loans and Related Allowance For Credit Losses (USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Dec. 31, 2012
--- | --- | ---
With allocated allowance |  |
Allowance | $ 12,779 | $ 12,183
Total impaired loans | 276,596 | 323,786
Total impaired loans | 211,077 | 248,597
Total impaired loans | 12,779 | 12,183
Commercial Loans Member |  |
With allocated allowance |  |
Loans with related allowance unpaid principal balance | 11,602 | 7,804
Loans with related allowance recorded investment | 6,928 | 4,959
Allowance | 1,568 | 1,467
Total impaired loans | 1,568 | 1,467
Real Estate Construction Loans [Member] |  |
With allocated allowance |  |
Loans with related allowance unpaid principal balance | 27,789 | 54,718
Loans with related allowance recorded investment | 18,636 | 34,856
Allowance | 4,995 | 8,158
Total impaired loans | 4,995 | 8,158
Commercial Mortgage Loans [Member] |  |
With allocated allowance |  |
Loans with related allowance unpaid principal balance | 36,808 | 14,163
Loans with related allowance recorded investment | 32,777 | 12,928
Allowance | 5,342 | 1,336
Total impaired loans | 5,342 | 1,336
Residential Mortgage And Equity Lines Member |  |
With allocated allowance |  |
Loans with related allowance unpaid principal balance | 15,948 | 14,264
Loans with related allowance recorded investment | 13,941 | 12,428
Allowance | 874 | 1,222
Total impaired loans | 874 | 1,222
With Allocated Allowance Member |  |
With allocated allowance |  |
Loans with related allowance unpaid principal balance | 92,147 | 90,949
Loans with related allowance recorded investment | 72,282 | 65,171
Allowance | 12,779 | 12,183
Total impaired loans | 12,779 | 12,183
Commercial Loans Member |  |
With no allocated allowance |  |
Loans with no related allowance unpaid principal balance | 17,027 | 29,359
Loans with no related allowance recorded investment | 13,335 | 18,963
Real Estate Construction Loans [Member] |  |
With no allocated allowance |  |
Loans with no related allowance unpaid principal balance | 28,983 | 9,304
Loans with no related allowance recorded investment | 16,652 | 7,277
Commercial Mortgage Loans [Member] |  |
With no allocated allowance |  |
Loans with no related allowance unpaid principal balance | 134,815 | 189,871
Loans with no related allowance recorded investment | 105,193 | 152,957
Residential Mortgage And Equity Lines Member |  |
With no allocated allowance |  |
Loans with no related allowance unpaid principal balance | 3,624 | 4,303
Loans with no related allowance recorded investment | 3,615 | 4,229
With No Allocated Allowance Member |  |
With no allocated allowance |  |
Loans with no related allowance unpaid principal balance | 184,449 | 232,837
Loans with no related allowance recorded investment | $ 138,795 | $ 183,426

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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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