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Note 4 - Loans Receivable and Credit Disclosures - Impaired Loans (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($)
Impaired financing receivable with no related allowance, recorded investment | $ 13,987
Impaired financing receivable with no related allowance, unpaid principal balance | 14,837
Impaired financing receivable, with no related allowance, average recorded investment | 4,804
Impaired financing receivable, with no related allowance, interest income, accrual method | 91
Impaired financing receivable with related allowance, recorded investment | 399
Impaired financing receivable with related allowance, unpaid principal balance | 436
Impaired financing receivable, related allowance | 95
Impaired financing receivable, with related allowance, average recorded investment | 8,201
Impaired financing receivable, with related allowance, interest income, accrual method | 2
Impaired financing receivable, recorded investment | 14,386
Impaired financing receivable, unpaid principal balance | 15,273
Impaired financing receivable, average recorded investment | 13,005
Impaired financing receivable, interest income, accrual method | 93
Construction Real Estate [Member] |
Impaired financing receivable with no related allowance, recorded investment | 0
Impaired financing receivable with no related allowance, unpaid principal balance | 0
Impaired financing receivable, with no related allowance, average recorded investment | 0
Impaired financing receivable, with no related allowance, interest income, accrual method | 0
Impaired financing receivable with related allowance, recorded investment | 0
Impaired financing receivable with related allowance, unpaid principal balance | 0
Impaired financing receivable, related allowance | 0
Impaired financing receivable, with related allowance, average recorded investment | 0
Impaired financing receivable, with related allowance, interest income, accrual method | 0
Impaired financing receivable, recorded investment | 0
Impaired financing receivable, unpaid principal balance | 0
Impaired financing receivable, average recorded investment | 0
Impaired financing receivable, interest income, accrual method | 0
Family Residential Real Estate 1-4 [Member] |
Impaired financing receivable with no related allowance, recorded investment | 687
Impaired financing receivable with no related allowance, unpaid principal balance | 721
Impaired financing receivable, with no related allowance, average recorded investment | 715
Impaired financing receivable, with no related allowance, interest income, accrual method | 70
Impaired financing receivable with related allowance, recorded investment | 118
Impaired financing receivable with related allowance, unpaid principal balance | 123
Impaired financing receivable, related allowance | 10
Impaired financing receivable, with related allowance, average recorded investment | 188
Impaired financing receivable, with related allowance, interest income, accrual method | 1
Impaired financing receivable, recorded investment | 805
Impaired financing receivable, unpaid principal balance | 844
Impaired financing receivable, average recorded investment | 903
Impaired financing receivable, interest income, accrual method | 71
Multifamily [Member] |
Impaired financing receivable with no related allowance, recorded investment | 0
Impaired financing receivable with no related allowance, unpaid principal balance | 0
Impaired financing receivable, with no related allowance, average recorded investment | 0
Impaired financing receivable, with no related allowance, interest income, accrual method | 0
Impaired financing receivable with related allowance, recorded investment | 0
Impaired financing receivable with related allowance, unpaid principal balance | 0
Impaired financing receivable, related allowance | 0
Impaired financing receivable, with related allowance, average recorded investment | 0
Impaired financing receivable, with related allowance, interest income, accrual method | 0
Impaired financing receivable, recorded investment | 0
Impaired financing receivable, unpaid principal balance | 0
Impaired financing receivable, average recorded investment | 0
Impaired financing receivable, interest income, accrual method | 0
Commercial Real Estate Portfolio Segment [Member] |
Impaired financing receivable with no related allowance, recorded investment | 12,853
Impaired financing receivable with no related allowance, unpaid principal balance | 13,578
Impaired financing receivable, with no related allowance, average recorded investment | 3,391
Impaired financing receivable, with no related allowance, interest income, accrual method | 0
Impaired financing receivable with related allowance, recorded investment | 0
Impaired financing receivable with related allowance, unpaid principal balance | 0
Impaired financing receivable, related allowance | 0
Impaired financing receivable, with related allowance, average recorded investment | 7,667
Impaired financing receivable, with related allowance, interest income, accrual method | 0
Impaired financing receivable, recorded investment | 12,853
Impaired financing receivable, unpaid principal balance | 13,578
Impaired financing receivable, average recorded investment | 11,058
Impaired financing receivable, interest income, accrual method | 0
Agriculture Real Estate [Member] |
Impaired financing receivable with no related allowance, recorded investment | 165
Impaired financing receivable with no related allowance, unpaid principal balance | 194
Impaired financing receivable, with no related allowance, average recorded investment | 319
Impaired financing receivable, with no related allowance, interest income, accrual method | 14
Impaired financing receivable with related allowance, recorded investment | 0
Impaired financing receivable with related allowance, unpaid principal balance | 0
Impaired financing receivable, related allowance | 0
Impaired financing receivable, with related allowance, average recorded investment | 0
Impaired financing receivable, with related allowance, interest income, accrual method | 0
Impaired financing receivable, recorded investment | 165
Impaired financing receivable, unpaid principal balance | 194
Impaired financing receivable, average recorded investment | 319
Impaired financing receivable, interest income, accrual method | 14
Commercial Portfolio Segment [Member] |
Impaired financing receivable with no related allowance, recorded investment | 200
Impaired financing receivable with no related allowance, unpaid principal balance | 249
Impaired financing receivable, with no related allowance, average recorded investment | 227
Impaired financing receivable, with no related allowance, interest income, accrual method | 6
Impaired financing receivable with related allowance, recorded investment | 0
Impaired financing receivable with related allowance, unpaid principal balance | 0
Impaired financing receivable, related allowance | 0
Impaired financing receivable, with related allowance, average recorded investment | 35
Impaired financing receivable, with related allowance, interest income, accrual method | 1
Impaired financing receivable, recorded investment | 200
Impaired financing receivable, unpaid principal balance | 249
Impaired financing receivable, average recorded investment | 262
Impaired financing receivable, interest income, accrual method | 7
Agriculture [Member] |
Impaired financing receivable with no related allowance, recorded investment | 78
Impaired financing receivable with no related allowance, unpaid principal balance | 88
Impaired financing receivable, with no related allowance, average recorded investment | 147
Impaired financing receivable, with no related allowance, interest income, accrual method | 0
Impaired financing receivable with related allowance, recorded investment | 264
Impaired financing receivable with related allowance, unpaid principal balance | 294
Impaired financing receivable, related allowance | 68
Impaired financing receivable, with related allowance, average recorded investment | 292
Impaired financing receivable, with related allowance, interest income, accrual method | 0
Impaired financing receivable, recorded investment | 342
Impaired financing receivable, unpaid principal balance | 382
Impaired financing receivable, average recorded investment | 439
Impaired financing receivable, interest income, accrual method | 0
Consumer and Other [Member] |
Impaired financing receivable with no related allowance, recorded investment | 4
Impaired financing receivable with no related allowance, unpaid principal balance | 7
Impaired financing receivable, with no related allowance, average recorded investment | 5
Impaired financing receivable, with no related allowance, interest income, accrual method | 1
Impaired financing receivable with related allowance, recorded investment | 17
Impaired financing receivable with related allowance, unpaid principal balance | 19
Impaired financing receivable, related allowance | 17
Impaired financing receivable, with related allowance, average recorded investment | 19
Impaired financing receivable, with related allowance, interest income, accrual method | 0
Impaired financing receivable, recorded investment | 21
Impaired financing receivable, unpaid principal balance | 26
Impaired financing receivable, average recorded investment | 24
Impaired financing receivable, interest income, accrual method | $ 1

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