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Note 8 - Loans - Troubled Debt Restructuring Activity (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Charge-offs | $ 0 | $ 0 | $ 0 | $ 0
Accruing Troubled Debt Restructuring [Member] |  |  |  |
Beginning balance | 64,898 | 84,487 | 65,071 | 68,566
New restructurings | 240 | 2,589 | 15,432 | 25,036
Restructured loans restored to accrual status | 0 | 577 | 0 | 2,895
Charge-offs | (1,341) | 0 | (1,341) | 0
Payments | (22,150) | (13,055) | (36,219) | (19,801)
Restructured loans placed on non-accrual status | 0 | 0 | (1,296) | (2,098)
Ending balance | 41,647 | 74,598 | 41,647 | 74,598
Non-accruing Troubled Debt Restructuring [Member] |  |  |  |
Beginning balance | 22,457 | 30,347 | 24,189 | 33,415
New restructurings | 7,345 | 2,784 | 10,505 | 3,015
Restructured loans restored to accrual status | 0 | (577) | 0 | (2,895)
Charge-offs | (2,389) | 0 | (3,607) | (161)
Payments | (7,626) | (4,836) | (12,596) | (7,754)
Restructured loans placed on non-accrual status | 0 | 0 | 1,296 | 2,098
Ending balance | $ 19,787 | $ 27,718 | $ 19,787 | $ 27,718

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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=118936363&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=118939409&loc=d3e18845-111554 + Details
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