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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, 2021 | Dec. 31, 2020
--- | --- | ---
Non-impaired gross loans |  | $ 776,305 | $ 765,124
Real Estate Construction Portfolio Segment[Member] |  |  |
Non-impaired gross loans |  | 42,570 | 42,266
Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans |  | 186,713 | 181,588
Commercial Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans |  | 388,542 | 389,259
Commercial Non Real Estate Segment [Member] |  |  |
Non-impaired gross loans |  | 86,432 | 77,920
Consumer Non Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans |  | 32,260 | 33,108
Pass [Member] |  |  |
Non-impaired gross loans | [1] | 767,679 | 756,616
Pass [Member] | States Political Subdivisions [Member] |  |  |
Non-impaired gross loans |  | 39,788 | 40,983
Special Mention [Member] |  |  |
Non-impaired gross loans | [1] | 8,021 | 8,035
Classified Excluding Impaired [Member] |  |  |
Non-impaired gross loans | [1] | 605 | 473
Construction, 1-4 Family Residential [Member] | Pass [Member] | Real Estate Construction Portfolio Segment[Member] |  |  |
Non-impaired gross loans | [1] | 8,902 | 8,195
Construction, Other [Member] | Pass [Member] | Real Estate Construction Portfolio Segment[Member] |  |  |
Non-impaired gross loans | [1] | 33,668 | 34,071
Equity Lines [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 13,486 | 13,903
Closed End First Liens [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 94,684 | 92,241
Closed End First Liens [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 65 | 66
Closed End First Liens [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 343 | 284
Closed End Junior Liens [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 2,902 | 3,003
Closed End Junior Liens [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 0 | 0
Closed End Junior Liens [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 0 | 0
Investor Owned Residential Real Estate [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 74,468 | 71,450
Investor Owned Residential Real Estate [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 632 |
Investor Owned Residential Real Estate [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] |  | 0
Multifamily Real Estate [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 90,194 | 87,455
Multifamily Real Estate [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 261 |
Multifamily Real Estate [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] |  | 0
Commercial Real Estate, Owner Occupied [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 144,790 | 146,900
Commercial Real Estate, Owner Occupied [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 543 |
Commercial Real Estate, Owner Occupied [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 37 | 140
Commercial Real Estate Other [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 146,197 | 147,436
Commercial Real Estate Other [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 6,520 |
Commercial and Industrial [Member] | Pass [Member] | Commercial Non Real Estate Segment [Member] |  |  |
Non-impaired gross loans | [1] | 86,363 | 77,892
Commercial and Industrial [Member] | Special Mention [Member] | Commercial Non Real Estate Segment [Member] |  |  |
Non-impaired gross loans | [1] |  | 0
Commercial and Industrial [Member] | Classified Excluding Impaired [Member] | Commercial Non Real Estate Segment [Member] |  |  |
Non-impaired gross loans | [1] | 69 | 28
Credit Card Receivable [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 4,437 | 4,665
Automobile Loan [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 11,666 | 12,024
Automobile Loan [Member] | Classified Excluding Impaired [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 17 | 6
Other Consumer Loans [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | 16,134 | 16,398
Other Consumer Loans [Member] | Classified Excluding Impaired [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |  |
Non-impaired gross loans | [1] | $ 6 | $ 15
[1] | Excludes impaired, if any.

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