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Note 8 - Loans - Troubled Debt Restructuring Activity (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Accruing Troubled Debt Restructuring [Member] |  |
Beginning balance | $ 27,721 | $ 35,336
New restructurings | 686 | 534
Payments | (543) | (1,506)
Ending balance | 27,864 | 34,364
Non-accruing Troubled Debt Restructuring [Member] |  |
Beginning balance | 8,985 | 18,048
Payments | (324) | (159)
Ending balance | $ 8,661 | $ 17,889

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- Definition Amount of financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554 + Details
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