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Note 5 - Credit Quality (Details Textual) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) | Dec. 31, 2019 USD ($)
Financing Receivable, Collectively Evaluated for Impairment | $ 2,142,670 | $ 1,672,634
Restructured Loans, Reserves | $ 500 |
Performing Status Returned Period (Month) | 6 months |
Financing Receivable, Troubled Debt Restructuring | $ 13,009 | 8,917
Financing Receivable, Number of Payment Deferrals | 3,362 |
Financing Receivable, Deferred Payments | $ 426,450 |
Financing Receivable, Troubled Debt Restructuring, Subsequent Default | 100 | 0
Commercial Portfolio Segment [Member] |  |
Financing Receivable, Collectively Evaluated for Impairment | 1,266,110 | 969,838
Financing Receivable, Deferred Payments | 102,540 |
Consumer Portfolio Segment [Member] |  |
Financing Receivable, Deferred Payments | 13,090 |
Impaired Loans [Member] |  |
Financing Receivable, Collectively Evaluated for Impairment | 33,480 | 24,640
Non-covered Loans [Member] |  |
Financing Receivable, 90 Days or More Past Due, Still Accruing | 43 | 144
Covered Loans [Member] |  |
Financing Receivable, Troubled Debt Restructuring | $ 0 | $ 0

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- Definition Deferred amounts on loans receivable related to loan modification programs offered to financial institution customers affected by COVID-19. + References No definition available. + Details
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- Definition Number of payment deferrals on loans receivable related to loan modification programs offered to financial institution customers affected by COVID-19. + References No definition available. + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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