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Note 7 - Loans (Details) - Average Balance and Interest Income Recognized Related to Impaired Loans - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Financing Receivable, Impaired [Line Items] |  |  |  |
Loans, average recorded investment | $ 169,250 | $ 192,196 | $ 172,601 | $ 193,772
Loans, interest income recognized | 1,179 | 1,348 | 2,356 | 2,758
Commercial Portfolio Segment [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Loans, average recorded investment | 25,620 | 27,773 | 25,523 | 29,300
Loans, interest income recognized | 201 | 194 | 412 | 420
Real Estate Construction Portfolio Segment [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Loans, average recorded investment | 20,790 | 33,049 | 21,884 | 33,552
Loans, interest income recognized | 65 | 66 | 130 | 132
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Loans, average recorded investment | 105,815 | 112,982 | 108,042 | 112,148
Loans, interest income recognized | 793 | 995 | 1,574 | 2,014
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Loans, average recorded investment | 17,025 | 18,392 | 17,152 | 18,772
Loans, interest income recognized | $ 120 | $ 93 | $ 240 | $ 192

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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=49124121&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=49124121&loc=d3e5258-111524 + Details
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