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Note 8 - Loans - Troubled Debt Restructuring Activity (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Charge-offs | $ 0 | $ (811) | $ 0 | $ (811)
Accruing Troubled Debt Restructuring [Member] |  |  |  |
Beginning balance | 34,364 | 62,948 | 35,336 | 65,071
New restructurings | 1,900 | 13,244 | 2,434 | 15,192
Payments | (4,593) | (9,998) | (6,099) | (14,069)
Restructured loans placed on non-accrual status | 0 | (1,296) | 0 | (1,296)
New restructurings | 1,900 | 13,244 | 2,434 | 15,192
Ending balance | 31,671 | 64,898 | 31,671 | 64,898
Non-accruing Troubled Debt Restructuring [Member] |  |  |  |
Beginning balance | 17,889 | 23,301 | 18,048 | 24,189
New restructurings | 0 | 3,160 | 0 | 3,160
Payments | (249) | (4,489) | (408) | (4,970)
Restructured loans placed on non-accrual status | 0 | 1,296 | 0 | 1,296
New restructurings | 0 | 3,160 | 0 | 3,160
Charge-offs | (4,970) | (811) | (4,970) | (1,218)
Ending balance | $ 12,670 | $ 22,457 | $ 12,670 | $ 22,457

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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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