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v3.20.4

Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans - Restructurings By Class (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Number of contracts |  | 0 | 1 | 13 |
Pre-modification outstanding principal balance |  |  | $ 100 | $ 4,213 |
Post-modification outstanding principal balance |  |  | $ 100 | $ 4,213 | [1]
Residential Portfolio Segment [Member] | Equity Lines [Member] |  |  |  |  |
Number of contracts |  |  | 1 |  |
Pre-modification outstanding principal balance |  |  | $ 100 |  |
Post-modification outstanding principal balance |  |  | $ 100 |  |
Real Estate Construction Portfolio Segment[Member] | Construction Loans [Member] |  |  |  |  |
Number of contracts |  |  |  | 2 |
Pre-modification outstanding principal balance |  |  |  | $ 2,882 |
Post-modification outstanding principal balance | [1] |  |  | $ 2,882 |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |
Number of contracts |  |  |  | 2 |
Pre-modification outstanding principal balance |  |  |  | $ 715 |
Post-modification outstanding principal balance | [1] |  |  | $ 715 |
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |  |  |  |
Number of contracts |  |  |  | 1 |
Pre-modification outstanding principal balance |  |  |  | $ 22 |
Post-modification outstanding principal balance | [1] |  |  | $ 22 |
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |  |
Number of contracts |  |  |  | 8 |
Pre-modification outstanding principal balance |  |  |  | $ 594 |
Post-modification outstanding principal balance | [1] |  |  | $ 594 |
[1] | Post-modification outstanding recorded investment considers amounts immediately following the modification. Amounts do not reflect balances at the end of the period.

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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + 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 + Details
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- Definition Amount, after troubled debt restructuring, of modified financing receivable. + 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 + Details
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