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Note 3 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans - Past Due and Nonaccrual Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020 | Sep. 30, 2020
--- | --- | --- | ---
Gross loans |  | $ 798,606 |  | $ 770,027 |  |
Loans past due 90 days or more and still accruing |  | 62 |  | 17 |  | $ 236
Nonaccruals |  | 3,114 | [1] | 3,685 | [2] | $ 3,602
Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Gross loans |  | 1,223 |  | 1,497 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Gross loans |  | 815 |  | 1,331 |  |
Real Estate Construction Portfolio Segment[Member] |  |  |  |  |  |
Gross loans |  | 50,883 |  | 42,266 |  |
Loans past due 90 days or more and still accruing | [3] | 0 |  |  |  |
Nonaccruals | [1],[3] | 0 |  |  |  |
Real Estate Construction Portfolio Segment[Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Gross loans | [3] | 115 |  |  |  |
Real Estate Construction Portfolio Segment[Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Gross loans | [3] | 0 |  |  |  |
Consumer Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Gross loans |  | 204,880 |  | 181,782 |  |
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [3] | 39 |  | 0 |  |
Nonaccruals | [3] | 0 | [1] | 62 | [2] |
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [3] | 0 |  | 0 |  |
Nonaccruals | [3] | 0 | [1] | 0 | [2] |
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [3] | 0 |  |  |  |
Nonaccruals | [1],[3] | 0 |  |  |  |
Consumer Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Closed End First Liens [Member] |  |  |  |  |  |
Gross loans | [3] | 489 |  | 365 |  |
Consumer Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |  |  |
Gross loans | [3] | 102 |  | 106 |  |
Consumer Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Equity Lines [Member] |  |  |  |  |  |
Gross loans | [3] | 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 | [3] | 39 |  | 62 |  |
Consumer Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |  |  |
Gross loans | [3] | 0 |  | 0 |  |
Consumer Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Equity Lines [Member] |  |  |  |  |  |
Gross loans | [3] | 0 |  |  |  |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Gross loans |  | 403,840 |  | 393,115 |  |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [3] | 0 |  | 0 |  |
Nonaccruals | [3] | 2,767 | [1] | 2,941 | [2] |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [3] | 0 |  | 0 |  |
Nonaccruals | [3] | 0 | [1] | 654 | [2] |
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |  |
Gross loans | [3] | 147 |  | 15 |  |
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Real Estate Other [Member] |  |  |  |  |  |
Gross loans | [3] | 0 |  | 0 |  |
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 | [3] | 445 |  | 571 |  |
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Other [Member] |  |  |  |  |  |
Gross loans | [3] | 0 |  | 654 |  |
Commercial Non Real Estate Segment [Member] |  |  |  |  |  |
Gross loans |  | 59,082 |  | 78,771 |  |
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [3] | 10 |  | 0 |  |
Nonaccruals | [3] | 347 | [1] | 28 | [2] |
Commercial Non Real Estate Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |  |  |  |
Gross loans | [3] | 29 |  | 730 |  |
Commercial Non Real Estate Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial [Member] |  |  |  |  |  |
Gross loans | [3] | 318 |  | 27 |  |
Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Gross loans |  | 31,576 |  | 33,110 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [3] | 1 |  | 3 |  |
Nonaccruals | [3] | 0 | [1] | 0 | [2] |
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [3] | 0 |  | 1 |  |
Nonaccruals | [3] | 0 | [1] | 0 | [2] |
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [3] | 12 |  | 13 |  |
Nonaccruals | [3] | 0 | [1] | 0 | [2] |
Consumer Non Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Credit Card Receivable [Member] |  |  |  |  |  |
Gross loans | [3] | 3 |  | 7 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Automobile Loan [Member] |  |  |  |  |  |
Gross loans | [3] | 91 |  | 144 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Financing Receivables 30 to 89 Days Past Due [Member] | Other Consumer Loans [Member] |  |  |  |  |  |
Gross loans | [3] | 218 |  | 130 |  |
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 | [3] | 1 |  | 3 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Automobile Loan [Member] |  |  |  |  |  |
Gross loans | [3] | 0 |  | 1 |  |
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 | [3] | $ 12 |  | $ 13 |  |
[1] | Includes current and past due loans in nonaccrual status. Includes impaired loans in nonaccrual status.
[2] | Includes current and past due loans in nonaccrual status. Includes impaired loans in nonaccrual status.
[3] | Only classes with past-due or nonaccrual loans are shown.

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