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Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans - Past Due and Nonaccrual Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Loans past due 90 days or more and still accruing |  | $ 63 | [1] | $ 156
Nonaccruals (including impaired nonaccruals) |  | 5,855 | [1] | 6,682
Real Estate Construction Portfolio Segment[Member] | Construction Residential [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 0 | [1] | 0
Nonaccruals (including impaired nonaccruals) |  | 270 | [1] | 718
Real Estate Construction Portfolio Segment[Member] | Construction Other [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 0 |  | 0
Nonaccruals (including impaired nonaccruals) |  | 0 |  | 0
Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 0 | [1] | 0
Nonaccruals (including impaired nonaccruals) |  | 0 | [1] | 0
Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 6 | [1] | 106
Nonaccruals (including impaired nonaccruals) |  | 0 | [1] | 14
Consumer Real Estate Portfolio Segment [Member] | Closed End Junior Liens [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 36 | [1] | 39
Nonaccruals (including impaired nonaccruals) |  | 0 | [1] | 0
Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 0 | [1] | 0
Nonaccruals (including impaired nonaccruals) |  | 253 | [1] | 0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 0 | [1] | 0
Nonaccruals (including impaired nonaccruals) |  | 1,091 | [1] | 1,728
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 0 | [1] | 0
Nonaccruals (including impaired nonaccruals) |  | 1,183 | [1] | 494
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 0 | [1] | 0
Nonaccruals (including impaired nonaccruals) |  | 2,814 | [1] | 2,845
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Loans past due 90 days or more and still accruing | [1] | 0 |  |
Nonaccruals (including impaired nonaccruals) | [1] | 241 |  |
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  |  |  | 0
Nonaccruals (including impaired nonaccruals) |  |  |  | 883
Public Sector and IDA Portfolio Segment[Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 0 |  | 0
Nonaccruals (including impaired nonaccruals) |  | 0 |  | 0
Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 5 | [1] | 6
Nonaccruals (including impaired nonaccruals) |  | 0 | [1] | 0
Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 12 | [1] | 5
Nonaccruals (including impaired nonaccruals) |  | 3 | [1] | 0
Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |  |
Loans past due 90 days or more and still accruing |  | 4 | [1] | 0
Nonaccruals (including impaired nonaccruals) |  | 0 | [1] | 0
Financing Receivables 30 to 89 Days Past Due [Member] |  |  |  |
Past due loans |  | 2,553 | [1] | 2,992
Financing Receivables 30 to 89 Days Past Due [Member] | Real Estate Construction Portfolio Segment[Member] | Construction Residential [Member] |  |  |  |
Past due loans |  | 0 | [1] | 0
Financing Receivables 30 to 89 Days Past Due [Member] | Real Estate Construction Portfolio Segment[Member] | Construction Other [Member] |  |  |  |
Past due loans |  | 25 |  | 26
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] |  |  |  |
Past due loans |  | 10 | [1] | 16
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |  |  |
Past due loans |  | 1,498 | [1] | 1,402
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Closed End Junior Liens [Member] |  |  |  |
Past due loans |  | 114 | [1] | 123
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |
Past due loans |  | 56 | [1] | 248
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] |  |  |  |
Past due loans |  | 132 | [1] | 684
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |
Past due loans |  | 339 | [1] | 0
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] |  |  |  |
Past due loans |  | 0 | [1] | 0
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Past due loans | [1] | 6 |  |
Financing Receivables 30 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Past due loans |  |  |  | 142
Financing Receivables 30 to 89 Days Past Due [Member] | Public Sector and IDA Portfolio Segment[Member] |  |  |  |
Past due loans |  | 0 |  | 0
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member] |  |  |  |
Past due loans |  | 8 | [1] | 5
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] |  |  |  |
Past due loans |  | 234 | [1] | 286
Financing Receivables 30 to 89 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |  |
Past due loans |  | 131 | [1] | 60
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |  |
Past due loans |  | 1,888 | [1] | 3,124
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Real Estate Construction Portfolio Segment[Member] | Construction Residential [Member] |  |  |  |
Past due loans |  | 0 | [1] | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Real Estate Construction Portfolio Segment[Member] | Construction Other [Member] |  |  |  |
Past due loans |  | 0 |  | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Equity Lines [Member] |  |  |  |
Past due loans |  | 0 | [1] | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Closed End First Liens [Member] |  |  |  |
Past due loans |  | 6 | [1] | 106
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Closed End Junior Liens [Member] |  |  |  |
Past due loans |  | 36 | [1] | 39
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Real Estate Portfolio Segment [Member] | Investor Owned Residential Real Estate [Member] |  |  |  |
Past due loans |  | 234 | [1] | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Multifamily Real Estate [Member] |  |  |  |
Past due loans |  | 1,091 | [1] | 1,728
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] |  |  |  |
Past due loans |  | 202 | [1] | 357
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate Other [Member] |  |  |  |
Past due loans |  | 80 | [1] | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Past due loans | [1] | 218 |  |
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |  |  |
Past due loans |  |  |  | 883
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Public Sector and IDA Portfolio Segment[Member] |  |  |  |
Past due loans |  | 0 |  | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Credit Card Receivable [Member] |  |  |  |
Past due loans |  | 5 | [1] | 6
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Automobile Loan [Member] |  |  |  |
Past due loans |  | 12 | [1] | 5
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Non Real Estate Portfolio Segment [Member] | Other Consumer Loans [Member] |  |  |  |
Past due loans |  | $ 4 | [1] | $ 0
[1] | Only classes with past-due or nonaccrual loans are shown.

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