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Note 3 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans - Past Due and Nonaccrual Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2020
--- | --- | --- | ---
Loans past due 90 days or more and still accruing |  | $ 12 | [1] | $ 17 | [1] | $ 170
Nonaccruals |  | 3,691 | [1],[2] | 3,685 | [1],[3] | $ 3,452
Real Estate Construction Portfolio Segment[Member] | Construction, Other [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 0 |  |  |  |
Nonaccruals | [1],[2] | 0 |  |  |  |
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 0 |  | 0 |  |
Nonaccruals | [1] | 62 | [2] | 62 | [3] |
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 0 |  | 0 |  |
Nonaccruals | [1] | 0 | [2] | 0 | [3] |
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 0 |  |  |  |
Nonaccruals | [1],[2] | 0 |  |  |  |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 0 |  | 0 |  |
Nonaccruals | [1] | 2,907 | [2] | 2,941 | [3] |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 0 |  | 0 |  |
Nonaccruals | [1] | 654 | [2] | 654 | [3] |
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 0 |  | 0 |  |
Nonaccruals | [1] | 68 | [2],[4] | 28 | [3] |
Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 1 |  | 3 |  |
Nonaccruals | [1] | 0 | [2] | 0 | [3] |
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 0 |  | 1 |  |
Nonaccruals | [1] | 0 | [2] | 0 | [3] |
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 11 |  | 13 |  |
Nonaccruals | [1] | 0 | [2] | 0 | [3] |
Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 1,804 |  | 1,497 |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Real Estate Construction Portfolio Segment[Member] | Construction, Other [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 16 |  |  |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 403 |  | 365 |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 163 |  | 106 |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 29 |  |  |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 0 |  | 15 |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 0 |  | 0 |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 874 | [4] | 730 |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 4 |  | 7 |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 97 |  | 144 |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 218 |  | 130 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 1,237 |  | 1,331 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Real Estate Construction Portfolio Segment[Member] | Construction, Other [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 0 |  |  |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 62 |  | 62 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 0 |  | 0 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 0 |  |  |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 461 |  | 571 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 654 |  | 654 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 48 | [4] | 27 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 1 |  | 3 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 0 |  | 1 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | $ 11 |  | $ 13 |  |
[1] | Only classes with past due or nonaccrual loans are shown.
[2] | Includes current and past due loans in nonaccrual status. Includes impaired loans in nonaccrual status.
[3] | Includes current and past due loans in nonaccrual status. Includes impaired loans in nonaccrual status.
[4] | Includes SBA PPP loans past due 30-89 days of $3

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