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Note 8 - Loans - Average Balance and Interest Income Recognized Related to Impaired Loans (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Average Recorded Investment | $ 80,233 | $ 115,085
Interest Income Recognized | 698 | 947
Commercial Portfolio Segment [Member] |  |
Average Recorded Investment | 28,316 | 37,936
Interest Income Recognized | 70 | 256
Real Estate Construction Portfolio Segment [Member] |  |
Average Recorded Investment | 4,506 | 4,815
Interest Income Recognized | 98 | 0
Commercial Real Estate Portfolio Segment [Member] |  |
Average Recorded Investment | 36,040 | 59,070
Interest Income Recognized | 459 | 603
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |
Average Recorded Investment | 11,371 | 13,264
Interest Income Recognized | $ 71 | $ 88

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=121611835&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details
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