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Note 5 - Loans and Related Allowance for Loan and Lease Losses - Additional Information on Impaired Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Average recorded investment | $ 13,884 | $ 8,573
Interest income recognized | 1,080 | 445
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] |  |
Average recorded investment | 2,637 | 1,334
Interest income recognized | 231 | 53
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] |  |
Average recorded investment | 8,671 | 5,023
Interest income recognized | 646 | 262
Residential Portfolio Segment [Member] |  |
Average recorded investment | 998 | 1,208
Interest income recognized | 46 | 56
Commercial And Industrial [Member] |  |
Average recorded investment | 1,331 | 763
Interest income recognized | 145 | 62
Home Equity Lines of Credit [Member] |  |
Average recorded investment | 247 | 245
Interest income recognized | $ 12 | $ 12

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
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