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Note 7 - Loans and Related Allowance for Loan Losses (Details) - Classes of the Loan Portfolio Summarized by Nonaccrual Loans and Still Accruing - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
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Note 7 - Loans and Related Allowance for Loan Losses (Details) - Classes of the Loan Portfolio Summarized by Nonaccrual Loans and Still Accruing [Line Items] |  |
Loans, nonacrrual status | $ 7,534 | $ 7,545
Loans, 90+ days past due and accruing | 67 | 2
Commercial and Industrial [Member] |  |
Note 7 - Loans and Related Allowance for Loan Losses (Details) - Classes of the Loan Portfolio Summarized by Nonaccrual Loans and Still Accruing [Line Items] |  |
Loans, nonacrrual status | 1,058 | 1,450
Loans, 90+ days past due and accruing | 0 | 0
Real Estate Construction Porfolio Segment [Member] |  |
Note 7 - Loans and Related Allowance for Loan Losses (Details) - Classes of the Loan Portfolio Summarized by Nonaccrual Loans and Still Accruing [Line Items] |  |
Loans, nonacrrual status | 118 | 130
Loans, 90+ days past due and accruing | 0 | 0
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] |  |
Note 7 - Loans and Related Allowance for Loan Losses (Details) - Classes of the Loan Portfolio Summarized by Nonaccrual Loans and Still Accruing [Line Items] |  |
Loans, nonacrrual status | 4,435 | 4,122
Loans, 90+ days past due and accruing | 67 | 0
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member] |  |
Note 7 - Loans and Related Allowance for Loan Losses (Details) - Classes of the Loan Portfolio Summarized by Nonaccrual Loans and Still Accruing [Line Items] |  |
Loans, nonacrrual status | 1,922 | 1,842
Loans, 90+ days past due and accruing | 0 | 0
Consumer Portfolio Segment [Member] |  |
Note 7 - Loans and Related Allowance for Loan Losses (Details) - Classes of the Loan Portfolio Summarized by Nonaccrual Loans and Still Accruing [Line Items] |  |
Loans, nonacrrual status | 1 | 1
Loans, 90+ days past due and accruing | $ 0 | $ 2

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