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Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans - Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Non-impaired gross loans | $ 639,373 | $ 604,538
Real Estate Construction Portfolio Segment[Member] |  |
Non-impaired gross loans | 36,075 | 47,533
Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 156,841 | 142,542
Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 328,675 | 296,803
Commercial Non Real Estate Segment [Member] |  |
Non-impaired gross loans | 38,783 | 36,480
Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 33,525 | 29,845
Pass [Member] |  |
Non-impaired gross loans | 622,802 | 592,323
Pass [Member] | States Political Subdivisions [Member] |  |
Non-impaired gross loans | 45,474 | 51,335
Special Mention [Member] |  |
Non-impaired gross loans | 13,519 | 6,144
Special Mention [Member] | States Political Subdivisions [Member] |  |
Non-impaired gross loans | 0 | 0
Classified Excluding Impaired [Member] |  |
Non-impaired gross loans | 3,052 | 6,071
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 | 11,635 | 10,626
Construction, 1-4 Family Residential [Member] | Special Mention [Member] | Real Estate Construction Portfolio Segment[Member] |  |
Non-impaired gross loans | 3,468 | 3,694
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 | 20,972 | 33,213
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 | 17,034 | 16,236
Equity Lines [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 82 | 15
Equity Lines [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans |  | 87
Closed End First Liens [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 83,658 | 78,614
Closed End First Liens [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 1,267 | 708
Closed End First Liens [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 580 | 1,370
Closed End Junior Liens [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 4,861 | 4,983
Closed End Junior Liens [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 15 | 55
Closed End Junior Liens [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 151 | 61
Investor Owned Residential Real Estate [Member] | Pass [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 48,277 | 39,616
Investor Owned Residential Real Estate [Member] | Special Mention [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 333 | 31
Investor Owned Residential Real Estate [Member] | Classified Excluding Impaired [Member] | Consumer Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 583 | 766
Multifamily Real Estate [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 99,002 | 77,060
Multifamily Real Estate [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 1,733 | 0
Multifamily Real Estate [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans |  | 1,804
Commercial Real Estate, Owner Occupied [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 120,170 | 121,741
Commercial Real Estate, Owner Occupied [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 1,188 | 1,165
Commercial Real Estate, Owner Occupied [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 1,425 | 1,274
Commercial Real Estate Other [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 103,534 | 93,701
Commercial Real Estate Other [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 1,543 | 58
Commercial Real Estate Other [Member] | Classified Excluding Impaired [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 80 | 0
Commercial and Industrial [Member] | Pass [Member] | Commercial Non Real Estate Segment [Member] |  |
Non-impaired gross loans | 35,521 | 35,652
Commercial and Industrial [Member] | Special Mention [Member] | Commercial Non Real Estate Segment [Member] |  |
Non-impaired gross loans | 3,229 | 285
Commercial and Industrial [Member] | Classified Excluding Impaired [Member] | Commercial Non Real Estate Segment [Member] |  |
Non-impaired gross loans | 33 | 543
Credit Card Receivable [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 5,978 | 5,773
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 | 14,457 | 12,414
Automobile Loan [Member] | Special Mention [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 25 | 102
Automobile Loan [Member] | Classified Excluding Impaired [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 192 | 138
Other Consumer Loans [Member] | Pass [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 12,229 | 11,359
Other Consumer Loans [Member] | Special Mention [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | 636 | 31
Other Consumer Loans [Member] | Classified Excluding Impaired [Member] | Consumer Non Real Estate Portfolio Segment [Member] |  |
Non-impaired gross loans | $ 8 | $ 28

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