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Note 3 - Loans and Allowance for Loan Losses - Nonaccrual Loans (Details) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
With no related allowance recorded, principal balance | $ 1,313,000 | $ 15,715,000
With related allowance recorded, principal balance | 6,415,000 | 3,651,000
Related allowance | 2,283,000 | 546,000
Total principal balance | 7,728,000 | 19,366,000
Commercial Portfolio Segment [Member] |  |
With no related allowance recorded, principal balance | 249,000 | 12,583,000
With related allowance recorded, principal balance | 6,023,000 | 3,099,000
Related allowance | 2,083,000 | 354,000
Total principal balance | 6,272,000 | 15,682,000
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
With no related allowance recorded, principal balance | 249,000 | 2,818,000
With related allowance recorded, principal balance | 5,775,000 | 2,192,000
Related allowance | 2,051,000 | 266,000
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member] |  |
With no related allowance recorded, principal balance | 0 | 0
With related allowance recorded, principal balance | 0 | 0
Related allowance | 0 | 0
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member] |  |
With no related allowance recorded, principal balance | 0 | 9,674,000
With related allowance recorded, principal balance | 248,000 | 761,000
Related allowance | 32,000 | 84,000
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member] |  |
With no related allowance recorded, principal balance | 0 | 0
With related allowance recorded, principal balance | 0 | 146,000
Related allowance | 0 | 4,000
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member] |  |
With no related allowance recorded, principal balance | 0 | 91,000
With related allowance recorded, principal balance | 0 | 0
Related allowance | 0 | 0
Retail Portfolio Segment [Member] |  |
With no related allowance recorded, principal balance | 1,064,000 | 3,132,000
With related allowance recorded, principal balance | 392,000 | 552,000
Related allowance | 200,000 | 192,000
Total principal balance | 1,456,000 | 3,684,000
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member] |  |
With no related allowance recorded, principal balance | 1,064,000 | 2,025,000
With related allowance recorded, principal balance | 392,000 | 412,000
Related allowance | 200,000 | $ 69,000
Retail Portfolio Segment [Member] | Other Consumer Loans [Member] |  |
With no related allowance recorded, principal balance | 0 |
With related allowance recorded, principal balance | 0 |
Related allowance | $ 0 |

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