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Note 5 - Loans and Related Allowance for Loan and Lease Losses - Impaired Loans by Class (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Recorded investment, with no related allowance | $ 6,451 | $ 2,744
Unpaid principal balance, with no related allowance | 6,612 | 3,221
Recorded investment, with related allowance | 15,864 | 5,225
Unpaid principal balance, with related allowance | 15,864 | 5,765
Related allowance | 689 | 740
Recorded investment | 22,315 | 7,969
Unpaid principal balance | 22,476 | 8,986
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] |  |
Recorded investment, with no related allowance | 4,141 | 731
Unpaid principal balance, with no related allowance | 4,141 | 731
Recorded investment, with related allowance | 1,509 | 731
Unpaid principal balance, with related allowance | 1,509 | 731
Related allowance | 407 | 10
Recorded investment | 5,650 |
Unpaid principal balance | 5,650 |
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] |  |
Recorded investment, with no related allowance | 1,042 | 1,547
Unpaid principal balance, with no related allowance | 1,042 | 1,802
Recorded investment, with related allowance | 12,528 | 3,750
Unpaid principal balance, with related allowance | 12,528 | 4,277
Related allowance | 167 | 655
Recorded investment | 13,570 | 5,297
Unpaid principal balance | 13,570 | 6,079
Residential Portfolio Segment [Member] |  |
Recorded investment, with no related allowance | 706 | 820
Unpaid principal balance, with no related allowance | 770 | 874
Recorded investment, with related allowance | 317 | 284
Unpaid principal balance, with related allowance | 317 | 284
Related allowance | 28 | 17
Recorded investment | 1,023 | 1,104
Unpaid principal balance | 1,087 | 1,158
Commercial And Industrial [Member] |  |
Recorded investment, with no related allowance | 450 | 370
Unpaid principal balance, with no related allowance | 547 | 538
Recorded investment, with related allowance | 1,378 | 217
Unpaid principal balance, with related allowance | 1,378 | 230
Related allowance | 39 | 42
Recorded investment | 1,828 | 587
Unpaid principal balance | 1,925 | 768
Home Equity Lines of Credit [Member] |  |
Recorded investment, with no related allowance | 112 | 7
Unpaid principal balance, with no related allowance | 112 | 7
Recorded investment, with related allowance | 132 | 243
Unpaid principal balance, with related allowance | 132 | 243
Related allowance | 48 | 16
Recorded investment | 244 | 250
Unpaid principal balance | $ 244 | $ 250

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- Definition 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 14A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524 + Details
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