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Note 5 - Loans and Related Allowance for Loan and Lease Losses - Nonaccrual Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Loans, nonacrrual status | $ 8,879 | $ 6,595
Loans, 90+ days past due and accruing | 0 | 945
Commercial And Industrial [Member] |  |
Loans, nonacrrual status | 946 | 996
Loans, 90+ days past due and accruing | 0 | 91
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] |  |
Loans, nonacrrual status | 3,285 | 2,731
Loans, 90+ days past due and accruing | 0 | 754
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member] |  |
Loans, nonacrrual status | 4,451 | 2,864
Loans, 90+ days past due and accruing | 0 | 100
Consumer Portfolio Segment [Member] |  |
Loans, nonacrrual status | 197 | 4
Loans, 90+ days past due and accruing | $ 0 | $ 0

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