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Note 5 - Loans and Related Allowance for Loan and Lease Losses - Nonaccrual Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Loans, current balance | $ 2,111 | $ 4,859
Financing Receivable, 90 Days or More Past Due, Still Accruing | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] |  |
Loans, current balance | 69 | 81
Financing Receivable, 90 Days or More Past Due, Still Accruing | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] |  |
Loans, current balance |  | 2,442
Financing Receivable, 90 Days or More Past Due, Still Accruing |  | 0
Residential Portfolio Segment [Member] |  |
Loans, current balance | 1,431 | 1,577
Financing Receivable, 90 Days or More Past Due, Still Accruing | 0 | 0
Commercial And Industrial [Member] |  |
Loans, current balance | 186 | 456
Financing Receivable, 90 Days or More Past Due, Still Accruing | 0 | 0
Home Equity Lines of Credit [Member] |  |
Loans, current balance | 191 | 121
Financing Receivable, 90 Days or More Past Due, Still Accruing | 0 | 0
Construction and Other [Member] |  |
Loans, current balance | 68 |
Financing Receivable, 90 Days or More Past Due, Still Accruing | 0 |
Consumer Portfolio Segment [Member] |  |
Loans, current balance | 166 | 182
Financing Receivable, 90 Days or More Past Due, Still Accruing | $ 0 | $ 0

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