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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, 2020 | Dec. 31, 2019 | Sep. 30, 2019
--- | --- | --- | ---
Loans past due 90 days or more and still accruing |  | $ 236 | [1] | $ 231 | [1] | $ 212
Nonaccruals |  | 3,602 | [1],[2] | 3,375 | [1],[2] | $ 4,076
Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 1,295 |  | 1,070 |  |
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 1,451 |  | 940 |  |
Real Estate Construction Portfolio Segment[Member] | Construction, Other [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] |  |  | 19 |  |
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 19 |  |  |  |
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 30 |  |  |  |
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 19 |  |  |  |
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 39 |  | 188 |  |
Nonaccruals | [1],[2] | 82 |  | 22 |  |
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 526 |  | 499 |  |
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 121 |  | 210 |  |
Consumer Real Estate Portfolio Segment [Member] | Closed End Junior Liens [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] |  |  | 83 |  |
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |  |  |
Nonaccruals | [1],[2] |  |  | 264 |  |
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 107 |  |  |  |
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] |  |  | 264 |  |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |  |  |
Nonaccruals | [1],[2] | 479 |  | 514 |  |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 147 |  |  |  |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 582 |  | 287 |  |
Commercial Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] |  |  | 94 |  |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] |  |  |  |  |  |
Nonaccruals | [1],[2] | 3,041 |  | 2,435 |  |
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 654 |  |  |  |
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 61 |  | 17 |  |
Nonaccruals | [1],[2] |  |  | 136 |  |
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 127 |  | 45 |  |
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] |  |  | 153 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 5 |  | 4 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] |  |  | 14 |  |
Nonaccruals | [1],[2] |  |  | 4 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 170 |  | 256 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] |  |  | 14 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 12 |  | 12 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] | Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | 165 |  | 70 |  |
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |  |  |
Loans past due and accruing | [1] | $ 12 |  | $ 12 |  |
[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.

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