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Note 8 - Loans (Details Textual) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019
Impaired Financing Receivable, Recorded Investment, Total | $ 88,097 | $ 75,859 |
Percentage Of Charge Off To Contractual Balances For Impaired Loans | 0.30% | 2.10% |
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve | $ 0 |  | $ 0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default | $ 0 |  |
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend |  | $ 0 |
Minimum [Member] |  |  |
Period Loan Is In Payment Default (Day) | 60 days |  |
Maximum [Member] |  |  |
Period Loan Is In Payment Default (Day) | 90 days |  |
Nonaccrual Loans [Member] |  |  |
Impaired Financing Receivable, Recorded Investment, Total | $ 53,700 | 40,500 |
Accruing Troubled Debt Restructuring [Member] |  |  |
Impaired Financing Receivable, Recorded Investment, Total | 34,400 | 35,400 |
Financing Receivable, Troubled Debt Restructuring | 34,400 | 35,300 |
Troubled Debt Restructuring, Specific Reserves | 1,000 |  |
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve | 822 |  |
Non-accruing Troubled Debt Restructuring [Member] |  |  |
Financing Receivable, Troubled Debt Restructuring | 17,900 | 18,000 |
Troubled Debt Restructuring, Specific Reserves | $ 2,200 |  |
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve |  | $ 2,200 |

X
- Definition Reflects the amount of the specific reserve related to a troubled debt restructuring. + References No definition available. + Details
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X
- Definition Percentage of charge-off to contractual balances for impaired loans. + References No definition available. + Details
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- Definition Represents the amount of specific reserves associated with troubled debt restructurings. + References No definition available. + Details
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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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- Definition Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details
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- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953550-111524 + Details
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- Definition Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18794-111554 + Details
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