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Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans by Credit Quality Indicator - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | $ 613,100 | $ 591,198
Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 592,881 | 575,613
Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 11,621 | 5,300
Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 8,598 | 10,285
Real Estate Construction Portfolio Segment[Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 42,246 | 45,562
Real Estate Construction Portfolio Segment[Member] | Construction, 1-4 Family Residential [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 11,564 | 14,222
Real Estate Construction Portfolio Segment[Member] | Construction, 1-4 Family Residential [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 3,860 |
Real Estate Construction Portfolio Segment[Member] | Construction, 1-4 Family Residential [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 1,196 | 2,265
Real Estate Construction Portfolio Segment[Member] | Construction Other [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 25,626 | 29,047
Real Estate Construction Portfolio Segment[Member] | Construction Other [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans |  | 28
Consumer Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 145,412 | 146,220
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 16,287 | 15,861
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans |  | 59
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 116 | 60
Consumer Real Estate Portfolio Segment [Member] | Closed-end First Liens [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 78,556 | 78,806
Consumer Real Estate Portfolio Segment [Member] | Closed-end First Liens [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 1,173 | 1,566
Consumer Real Estate Portfolio Segment [Member] | Closed-end First Liens [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 970 | 1,412
Consumer Real Estate Portfolio Segment [Member] | Closed-end Junior Liens [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 4,431 | 4,258
Consumer Real Estate Portfolio Segment [Member] | Closed-end Junior Liens [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 55 | 21
Consumer Real Estate Portfolio Segment [Member] | Closed-end Junior Liens [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 66 | 95
Consumer Real Estate Portfolio Segment [Member] | Investor-owned Residential Real Estate [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 41,986 | 42,781
Consumer Real Estate Portfolio Segment [Member] | Investor-owned Residential Real Estate [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 887 | 688
Consumer Real Estate Portfolio Segment [Member] | Investor-owned Residential Real Estate [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 885 | 614
Commercial Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 309,959 | 297,138
Commercial Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 77,752 | 73,611
Commercial Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 1,363 | 1,397
Commercial Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 1,830 | 850
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 127,913 | 125,643
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 1,707 | 202
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 1,894 | 2,855
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Other [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 95,540 | 90,821
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Other [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 1,960 | 1,177
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Other [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans |  | 582
Commercial Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 32,461 | 32,735
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 30,393 | 31,247
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 479 | 97
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 1,589 | 1,390
Public Sector and IDA Portfolio Segment[Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 53,383 | 41,361
Public Sector and IDA Portfolio Segment[Member] | States & Political Subdivisions [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 53,383 | 41,361
Consumer Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 29,639 | 28,182
Consumer Portfolio Segment [Member] | Credit Card Receivable [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 5,675 | 5,705
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 11,666 | 11,505
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 114 | 93
Consumer Portfolio Segment [Member] | Automobile Loan [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 48 | 128
Consumer Portfolio Segment [Member] | Other Consumer Loans [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 12,109 | 10,745
Consumer Portfolio Segment [Member] | Other Consumer Loans [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | 23 |
Consumer Portfolio Segment [Member] | Other Consumer Loans [Member] | Classified Excluding Impaired [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Non-impaired gross loans | $ 4 | $ 6

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