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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, 2022 | Dec. 31, 2021 | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Gross loans |  | $ 819,774 |  |  |  |  | $ 803,729
Loans 90 or more days past due and accruing |  | 381 |  | $ 90 |  |  |
Nonaccruals |  | 2,862 | [1] | 2,873 | [1] | $ 3,691 |
Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |  |
Gross loans |  | 901 |  | 987 |  |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |  |
Gross loans |  | 672 |  | 356 |  |  |
Real Estate Construction Portfolio Segment[Member] |  |  |  |  |  |  |
Gross loans |  | 59,741 |  | 48,841 |  |  | 48,841
Loans 90 or more days past due and accruing |  | 320 |  | 0 |  |  |
Nonaccruals | [1] | 0 |  | 0 |  |  |
Real Estate Construction Portfolio Segment[Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |  |
Gross loans |  | 0 |  | 14 |  |  |
Real Estate Construction Portfolio Segment[Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |  |
Gross loans |  | 320 |  | 0 |  |  |
Consumer Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |
Gross loans |  | 209,072 |  | 208,977 |  |  | 208,977
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] |  |  |  |  |  |  |
Loans 90 or more days past due and accruing |  | 0 |  | 29 |  |  |
Nonaccruals | [1] | 29 |  |  |  |  |
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |  |  |  |  |  |
Loans 90 or more days past due and accruing |  | 32 |  | 58 |  |  |
Nonaccruals | [1] | 0 |  | 0 |  |  |
Consumer Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Equity Lines [Member] |  |  |  |  |  |  |
Gross loans |  | 50 |  | 50 |  |  |
Consumer Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Closed End First Liens [Member] |  |  |  |  |  |  |
Gross loans |  | 517 |  | 715 |  |  |
Consumer Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Equity Lines [Member] |  |  |  |  |  |  |
Gross loans |  | 29 |  | 29 |  |  |
Consumer Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Closed End First Liens [Member] |  |  |  |  |  |  |
Gross loans |  | 32 |  | 58 |  |  |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |
Gross loans |  | 416,953 |  | 405,722 |  |  | 405,722
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |  |  |
Loans 90 or more days past due and accruing |  | 0 |  | 0 |  |  |
Nonaccruals | [1] | 2,546 |  | 2,572 |  |  |
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |  |  |
Gross loans |  | 61 |  | 12 |  |  |
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |  |  |
Gross loans |  | 262 |  | 266 |  |  |
Commercial Non Real Estate Segment [Member] |  |  |  |  |  |  |
Gross loans |  | 52,796 |  | 60,264 |  |  | 60,264
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |  |  |
Loans 90 or more days past due and accruing |  | 2 |  | 0 |  |  |
Nonaccruals | [1] | 287 |  | 301 |  |  |
Commercial Non Real Estate Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |  |  |  |  |
Gross loans |  | 53 |  | 13 |  |  |
Commercial Non Real Estate Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |  |  |  |  |
Gross loans |  | 2 |  | 0 |  |  |
Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |
Gross loans |  | 34,056 |  | 32,026 |  |  | $ 32,026
Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member] |  |  |  |  |  |  |
Loans 90 or more days past due and accruing |  | 2 |  | 2 |  |  |
Nonaccruals | [1] | 0 |  | 0 |  |  |
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] |  |  |  |  |  |  |
Loans 90 or more days past due and accruing |  | 0 |  | 0 |  |  |
Nonaccruals | [1] | 0 |  | 0 |  |  |
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |  |  |  |  |
Loans 90 or more days past due and accruing |  | 25 |  | 1 |  |  |
Nonaccruals | [1] | 0 |  | 0 |  |  |
Consumer Non Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Credit Card Receivable [Member] |  |  |  |  |  |  |
Gross loans |  | 1 |  | 2 |  |  |
Consumer Non Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Automobile Loan [Member] |  |  |  |  |  |  |
Gross loans |  | 80 |  | 93 |  |  |
Consumer Non Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Other Consumer Loans [Member] |  |  |  |  |  |  |
Gross loans |  | 139 |  | 88 |  |  |
Consumer Non Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Credit Card Receivable [Member] |  |  |  |  |  |  |
Gross loans |  | 2 |  | 2 |  |  |
Consumer Non Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Automobile Loan [Member] |  |  |  |  |  |  |
Gross loans |  | 0 |  | 0 |  |  |
Consumer Non Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Other Consumer Loans [Member] |  |  |  |  |  |  |
Gross loans |  | $ 25 |  | $ 1 |  |  |
[1] | Includes current and past due loans in nonaccrual status. Includes impaired loans in nonaccrual status.

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