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Note 8 - Loans - Troubled Debt Restructuring Activity (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Charge-offs | $ 0 | $ 0 | $ 0 | $ 0
Accruing Troubled Debt Restructuring [Member] |  |  |  |
Beginning balance | 27,864 | 34,364 | 27,721 | 35,336
New restructurings | 0 | 1,900 | 686 | 2,434
Payments | (603) | (4,593) | (1,146) | (6,099)
Ending balance | 27,261 | 31,671 | 27,261 | 31,671
Non-accruing Troubled Debt Restructuring [Member] |  |  |  |
Beginning balance | 8,661 | 17,889 | 8,985 | 18,048
Payments | (259) | (249) | (583) | (408)
Charge-offs | 0 | (4,970) | 0 | (4,970)
Ending balance | $ 8,402 | $ 12,670 | $ 8,402 | $ 12,670

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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=123577603&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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