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Note 3 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans - Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Loans, collectively evaluated for impairment |  | $ 724,345 |  | $ 728,738
Real Estate Construction Portfolio Segment[Member] |  |  |  |
Loans, collectively evaluated for impairment |  | 40,483 |  | 42,303
Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment |  | 178,475 |  | 180,713
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment |  | 358,577 |  | 361,765
Commercial Non Real Estate Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment |  | 50,201 |  | 45,658
Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment |  | 34,313 |  | $ 34,535
Pass [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 723,068 | $ 727,642 |
Pass [Member] | States Political Subdivisions [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 62,296 | 63,764 |
Special Mention [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 153 | 135 |
Special Mention [Member] | States Political Subdivisions [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 0 | 0 |
Classified Excluding Impaired [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 1,124 | 961 |
Classified Excluding Impaired [Member] | States Political Subdivisions [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 0 | 0 |
Construction, 1-4 Family Residential [Member] | Pass [Member] | Real Estate Construction Portfolio Segment[Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 7,610 | 7,590 |
Construction, 1-4 Family Residential [Member] | Special Mention [Member] | Real Estate Construction Portfolio Segment[Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] |  |  |
Construction, 1-4 Family Residential [Member] | Classified Excluding Impaired [Member] | Real Estate Construction Portfolio Segment[Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 0 | 0 |
Construction, Other [Member] | Pass [Member] | Real Estate Construction Portfolio Segment[Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 32,852 | 34,713 |
Construction, Other [Member] | Special Mention [Member] | Real Estate Construction Portfolio Segment[Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] |  |  |
Construction, Other [Member] | Classified Excluding Impaired [Member] | Real Estate Construction Portfolio Segment[Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 21 | 0 |
Equity Lines [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 16,619 | 16,435 |
Equity Lines [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] |  |  |
Equity Lines [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 37 | 0 |
Closed End First Liens [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment |  | 92,190 | 94,814 |
Closed End First Liens [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment |  |  |  |
Closed End First Liens [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment |  | 665 | 517 |
Closed End Junior Liens [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment |  | 3,711 | 3,861 |
Closed End Junior Liens [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment |  |  |  |
Closed End Junior Liens [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment |  | 83 |  |
Investor Owned Residential Real Estate [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 65,147 | 65,063 |
Investor Owned Residential Real Estate [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] |  |  |
Investor Owned Residential Real Estate [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 23 | 23 |
Multifamily Real Estate [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 83,688 | 87,934 |
Multifamily Real Estate [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] |  |  |
Multifamily Real Estate [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] |  | 94 |
Commercial Real Estate, Owner Occupied [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 130,191 | 127,937 |
Commercial Real Estate, Owner Occupied [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 17 |  |
Commercial Real Estate, Owner Occupied [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 133 | 164 |
Commercial Real Estate Other [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 144,548 | 145,636 |
Commercial Real Estate Other [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] |  |  |
Commercial Real Estate Other [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] |  |  |
Commercial and Industrial [Member] | Pass [Member] | Commercial Non Real Estate Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 49,932 | 45,387 |
Commercial and Industrial [Member] | Special Mention [Member] | Commercial Non Real Estate Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 136 | 135 |
Commercial and Industrial [Member] | Classified Excluding Impaired [Member] | Commercial Non Real Estate Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 133 | 136 |
Credit Card Receivable [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 5,231 | 5,703 |
Credit Card Receivable [Member] | Special Mention [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 0 | 0 |
Credit Card Receivable [Member] | Classified Excluding Impaired [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 0 | 0 |
Automobile Loan [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 13,994 | 14,810 |
Automobile Loan [Member] | Special Mention [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] |  |  |
Automobile Loan [Member] | Classified Excluding Impaired [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 24 | 19 |
Other Consumer Loans [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | 15,059 | 13,995 |
Other Consumer Loans [Member] | Special Mention [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] |  |  |
Other Consumer Loans [Member] | Classified Excluding Impaired [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |  |
Loans, collectively evaluated for impairment | [1] | $ 5 | $ 8 |
[1] | Excludes impaired, if any.

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