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Note 8 - Loans and Related Allowance for Loan and Lease Losses - Additional Information on Impaired Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Average recorded investment | $ 8,355 | $ 8,595 | $ 8,226 | $ 8,424
Interest income recognized | 135 | 58 | 233 | 138
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] |  |  |  |
Average recorded investment | 709 | 1,489 | 716 | 1,514
Interest income recognized | 12 | 15 | 23 | 31
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] |  |  |  |
Average recorded investment | 5,173 | 4,776 | 5,214 | 4,558
Interest income recognized | 57 | 23 | 115 | 67
Residential Portfolio Segment [Member] |  |  |  |
Average recorded investment | 986 | 1,227 | 1,025 | 1,257
Interest income recognized | 13 | 13 | 25 | 24
Commercial And Industrial [Member] |  |  |  |
Average recorded investment | 1,239 | 864 | 1,022 | 854
Interest income recognized | 51 | 6 | 65 | 13
Home Equity Lines of Credit [Member] |  |  |  |
Average recorded investment | 248 | 239 | 249 | 241
Interest income recognized | $ 2 | $ 1 | $ 5 | $ 3

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