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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, 2017 | Dec. 31, 2016
--- | --- | ---
Non-impaired gross loans | $ 644,005 | $ 639,373
Real Estate Construction Portfolio Segment[Member] |  |
Non-impaired gross loans | 33,234 | 36,075
Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 158,657 | 156,841
Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 327,395 | 328,675
Commercial Non Real Estate Segment [Member] |  |
Non-impaired gross loans | 41,100 | 38,783
Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 33,044 | 33,525
Pass [Member] |  |
Non-impaired gross loans | 629,420 | 622,802
Pass [Member] | States Political Subdivisions [Member] |  |
Non-impaired gross loans | 50,575 | 45,474
Special Mention [Member] |  |
Non-impaired gross loans | 11,380 | 13,519
Special Mention [Member] | States Political Subdivisions [Member] |  |
Non-impaired gross loans | 0 | 0
Classified Excluding Impaired [Member] |  |
Non-impaired gross loans | 3,205 | 3,052
Classified Excluding Impaired [Member] | States Political Subdivisions [Member] |  |
Non-impaired gross loans | 0 | 0
Construction, 1-4 Family Residential [Member] | Pass [Member] | Real Estate Construction Portfolio Segment[Member] |  |
Non-impaired gross loans | 10,950 | 11,635
Construction, 1-4 Family Residential [Member] | Special Mention [Member] | Real Estate Construction Portfolio Segment[Member] |  |
Non-impaired gross loans | 3,301 | 3,468
Construction, 1-4 Family Residential [Member] | Classified Excluding Impaired [Member] | Real Estate Construction Portfolio Segment[Member] |  |
Non-impaired gross loans | 0 | 0
Construction Other [Member] | Pass [Member] | Real Estate Construction Portfolio Segment[Member] |  |
Non-impaired gross loans | 18,983 | 20,972
Construction Other [Member] | Special Mention [Member] | Real Estate Construction Portfolio Segment[Member] |  |
Non-impaired gross loans | 0 | 0
Construction Other [Member] | Classified Excluding Impaired [Member] | Real Estate Construction Portfolio Segment[Member] |  |
Non-impaired gross loans | 0 | 0
Equity Lines [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 17,012 | 17,034
Equity Lines [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 48 | 82
Equity Lines [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 49 | 0
Closed End First Liens [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 84,807 | 83,658
Closed End First Liens [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 870 | 1,267
Closed End First Liens [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 583 | 580
Closed End Junior Liens [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 4,775 | 4,861
Closed End Junior Liens [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 15 | 15
Closed End Junior Liens [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 66 | 151
Investor Owned Residential Real Estate [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 49,561 | 48,277
Investor Owned Residential Real Estate [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 330 | 333
Investor Owned Residential Real Estate [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 541 | 583
Multifamily Real Estate [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 99,587 | 99,002
Multifamily Real Estate [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 959 | 1,733
Multifamily Real Estate [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 441 | 0
Commercial Real Estate, Owner Occupied [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 114,009 | 120,170
Commercial Real Estate, Owner Occupied [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 946 | 1,188
Commercial Real Estate, Owner Occupied [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 1,329 | 1,425
Commercial Real Estate Other [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 108,598 | 103,534
Commercial Real Estate Other [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 1,526 | 1,543
Commercial Real Estate Other [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans |  | 80
Commercial and Industrial [Member] | Pass [Member] | Commercial Non Real Estate Segment [Member] |  |
Non-impaired gross loans | 38,343 | 35,521
Commercial and Industrial [Member] | Special Mention [Member] | Commercial Non Real Estate Segment [Member] |  |
Non-impaired gross loans | 2,739 | 3,229
Commercial and Industrial [Member] | Classified Excluding Impaired [Member] | Commercial Non Real Estate Segment [Member] |  |
Non-impaired gross loans | 18 | 33
Credit Card Receivable [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 5,483 | 5,978
Credit Card Receivable [Member] | Special Mention [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 0 | 0
Credit Card Receivable [Member] | Classified Excluding Impaired [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 0 | 0
Automobile Loan [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 14,984 | 14,457
Automobile Loan [Member] | Special Mention [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 27 | 25
Automobile Loan [Member] | Classified Excluding Impaired [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 166 | 192
Other Consumer Loans [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 11,753 | 12,229
Other Consumer Loans [Member] | Special Mention [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 619 | 636
Other Consumer Loans [Member] | Classified Excluding Impaired [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | $ 12 | $ 8

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