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Note 8 - Loans and Related Allowance for Loan and Lease Losses - Nonaccrual Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Loans, current balance | $ 8,405 | $ 8,879
Loans, past due | 0 |
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] |  |
Loans, current balance | 1,175 | 1,162
Loans, past due |  |
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] |  |
Loans, current balance | 3,287 | 3,289
Loans, past due |  |
Residential Portfolio Segment [Member] |  |
Loans, current balance | 2,180 | 2,576
Loans, past due |  |
Commercial And Industrial [Member] |  |
Loans, current balance | 835 | 946
Loans, past due | 0 |
Home Equity Lines of Credit [Member] |  |
Loans, current balance | 699 | 709
Loans, past due |  |
Consumer Portfolio Segment [Member] |  |
Loans, current balance | 229 | 197
Loans, past due | $ 0 |

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