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Note 4 - Loans and Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Beginning balance | $ 7,515 | $ 6,394 | $ 6,772 | $ 6,083 |
Provision for credit losses | 290 | 175 | 833 | 550 |
Charge-offs | (61) | (77) | (571) | (287) |
Recoveries | 42 | 74 | 191 | 220 |
Ending balance | 7,786 | 6,566 | 7,786 | 6,566 |
Individually evaluated for impairment |  | 0 |  | 0 | $ 155
Collectively evaluated for impairment |  | 6,566 |  | 6,566 | 6,617
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 7,786 | 6,566 | 7,786 | 6,566 | 6,772
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |
Beginning balance |  |  | 561 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 561
Prior to Adoption of Asc 326 [Member] |  |  |  |  |
Beginning balance |  |  | 6,772 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 6,772
Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |  |
Beginning balance |  |  | 0 |  |
Ending balance | 0 | 0 | 0 | 0 |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 0 | 0 | 0 | 0 | 0
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] |  |  |  |  |
Beginning balance |  | 1,265 | 1,383 | 1,174 |
Provision for credit losses |  | 87 |  | 169 |
Charge-offs |  | 0 |  | (1) |
Recoveries |  | 0 |  | 10 |
Ending balance |  | 1,352 |  | 1,352 |
Individually evaluated for impairment |  | 0 |  | 0 | 0
Collectively evaluated for impairment |  | 1,352 |  | 1,352 | 1,383
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 1,352 |  | 1,352 | 1,383
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |  |
Beginning balance |  |  | 0 |  |
Ending balance |  | 0 |  | 0 |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 0 |  | 0 | 0
Real Estate Mortgage Portfolio Segment [Member] | Land Loan [Member] |  |  |  |  |
Beginning balance |  | 241 | 265 | 234 |
Provision for credit losses |  | 32 |  | 39 |
Charge-offs |  | 0 |  | 0 |
Recoveries |  | 0 |  | 0 |
Ending balance |  | 273 |  | 273 |
Individually evaluated for impairment |  | 0 |  | 0 | 0
Collectively evaluated for impairment |  | 273 |  | 273 | 265
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 273 |  | 273 | 265
Real Estate Mortgage Portfolio Segment [Member] | Land Loan [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |  |
Beginning balance |  |  | 0 |  |
Ending balance |  | 0 |  | 0 |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 0 |  | 0 | 0
Real Estate Mortgage Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |  |
Beginning balance |  | 496 | 526 | 403 |
Provision for credit losses |  | (66) |  | 27 |
Charge-offs |  | 0 |  | 0 |
Recoveries |  | 0 |  | 0 |
Ending balance |  | 430 |  | 430 |
Individually evaluated for impairment |  | 0 |  | 0 | 0
Collectively evaluated for impairment |  | 430 |  | 430 | 526
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 430 |  | 430 | 526
Real Estate Mortgage Portfolio Segment [Member] | Construction Loans [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |  |
Beginning balance |  |  | 0 |  |
Ending balance |  | 0 |  | 0 |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 0 |  | 0 | 0
Real Estate Mortgage Portfolio Segment [Member] | Commercial Real Estate Loan [Member] |  |  |  |  |
Beginning balance |  | 1,991 | 2,031 | 1,884 |
Provision for credit losses |  | 79 |  | 186 |
Charge-offs |  | 0 |  | 0 |
Recoveries |  | 0 |  | 0 |
Ending balance |  | 2,070 |  | 2,070 |
Individually evaluated for impairment |  | 0 |  | 0 | 0
Collectively evaluated for impairment |  | 2,070 |  | 2,070 | 2,031
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 2,070 |  | 2,070 | 2,031
Real Estate Mortgage Portfolio Segment [Member] | Commercial Real Estate Loan [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |  |
Beginning balance |  |  | 0 |  |
Ending balance |  | 0 |  | 0 |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 0 |  | 0 | 0
Commercial Portfolio Segment [Member] |  |  |  |  |
Beginning balance |  | 888 | 1,046 | 873 |
Provision for credit losses |  | (2) |  | 13 |
Charge-offs |  | 0 |  | (9) |
Recoveries |  | 0 |  | 9 |
Ending balance |  | 886 |  | 886 |
Individually evaluated for impairment |  | 0 |  | 0 | 155
Collectively evaluated for impairment |  | 886 |  | 886 | 891
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 886 |  | 886 | 1,046
Commercial Portfolio Segment [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |  |
Beginning balance |  |  | 0 |  |
Ending balance |  | 0 |  | 0 |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 0 |  | 0 | 0
Commercial Portfolio Segment [Member] | Commercial Real Estate Loan [Member] |  |  |  |  |
Beginning balance | 2,016 |  |  |  |
Provision for credit losses | 91 |  | 208 |  |
Charge-offs | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Ending balance | 2,107 |  | 2,107 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 2,107 |  | 2,107 |  |
Commercial Portfolio Segment [Member] | Commercial Real Estate Loan [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |
Beginning balance |  |  | (130) |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | (130)
Commercial Portfolio Segment [Member] | Commercial Real Estate Loan [Member] | Prior to Adoption of Asc 326 [Member] |  |  |  |  |
Beginning balance |  |  | 2,029 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 2,029
Commercial Portfolio Segment [Member] | Commercial Business [Member] |  |  |  |  |
Beginning balance | 1,564 |  |  |  |
Provision for credit losses | (219) |  | 511 |  |
Charge-offs | 0 |  | (188) |  |
Recoveries | 0 |  | 8 |  |
Ending balance | 1,345 |  | 1,345 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 1,345 |  | 1,345 |  |
Commercial Portfolio Segment [Member] | Commercial Business [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |
Beginning balance |  |  | (142) |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | (142)
Commercial Portfolio Segment [Member] | Commercial Business [Member] | Prior to Adoption of Asc 326 [Member] |  |  |  |  |
Beginning balance |  |  | 1,156 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 1,156
Consumer Portfolio Segment [Member] | Home Equity and Second Mortgage [Member] |  |  |  |  |
Beginning balance | 363 | 533 | 530 | 527 |
Provision for credit losses | 18 | 3 | (115) | 7 |
Charge-offs | (2) | 0 | (11) | 0 |
Recoveries | 2 | 0 | 2 | 2 |
Ending balance | 381 | 536 | 381 | 536 |
Individually evaluated for impairment |  | 0 |  | 0 | 0
Collectively evaluated for impairment |  | 536 |  | 536 | 530
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 381 | 536 | 381 | 536 | 530
Consumer Portfolio Segment [Member] | Home Equity and Second Mortgage [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |
Beginning balance |  |  | (26) |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | (26)
Consumer Portfolio Segment [Member] | Home Equity and Second Mortgage [Member] | Prior to Adoption of Asc 326 [Member] |  |  |  |  |
Beginning balance |  |  | 531 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 531
Consumer Portfolio Segment [Member] | Home Equity and Second Mortgage [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |  |
Beginning balance |  |  | 0 |  |
Ending balance |  | 0 |  | 0 |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 0 |  | 0 | 0
Consumer Portfolio Segment [Member] | All Other Consumer Excluding Home Equity and Second Mortgage [Member] |  |  |  |  |
Beginning balance | 858 |  | 991 |  |
Provision for credit losses | 248 |  | (54) |  |
Charge-offs | (59) |  | (341) |  |
Recoveries | 34 |  | 160 |  |
Ending balance | 1,081 | 1,019 | 1,081 | 1,019 |
Individually evaluated for impairment |  | 0 |  | 0 | 0
Collectively evaluated for impairment |  | 1,019 |  | 1,019 | 991
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 1,081 | 1,019 | 1,081 | 1,019 | 991
Consumer Portfolio Segment [Member] | All Other Consumer Excluding Home Equity and Second Mortgage [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |
Beginning balance |  |  | 435 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 435
Consumer Portfolio Segment [Member] | All Other Consumer Excluding Home Equity and Second Mortgage [Member] | Prior to Adoption of Asc 326 [Member] |  |  |  |  |
Beginning balance |  |  | 881 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 881
Consumer Portfolio Segment [Member] | All Other Consumer Excluding Home Equity and Second Mortgage [Member] | Financial Asset Acquired with Credit Deterioration [Member] |  |  |  |  |
Beginning balance |  |  | 0 |  |
Ending balance |  | 0 |  | 0 |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | 0 |  | 0 | 0
Consumer Portfolio Segment [Member] | Other Consumer Loan [Member] |  |  |  |  |
Beginning balance |  | 980 |  | 988 |
Provision for credit losses |  | 42 |  | 109 |
Charge-offs |  | (77) | (341) | (277) |
Recoveries |  | 74 |  | 199 |
Ending balance |  | 1,019 |  | 1,019 |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  | $ 1,019 |  | $ 1,019 |
Residential Portfolio Segment [Member] | Home Equity and Second Mortgage [Member] |  |  |  |  |
Charge-offs |  |  | (11) |  |
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] |  |  |  |  |
Beginning balance | 1,469 |  |  |  |
Provision for credit losses | 70 |  | 96 |  |
Charge-offs | 0 |  | (31) |  |
Recoveries | 6 |  | 21 |  |
Ending balance | 1,545 |  | 1,545 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 1,545 |  | 1,545 |  |
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |
Beginning balance |  |  | 423 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 423
Residential Portfolio Segment [Member] | One-to-four Family Loan [Member] | Prior to Adoption of Asc 326 [Member] |  |  |  |  |
Beginning balance |  |  | 1,036 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 1,036
Residential Portfolio Segment [Member] | Multifamily [Member] |  |  |  |  |
Beginning balance | 614 |  |  |  |
Provision for credit losses | (112) |  | 159 |  |
Charge-offs | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Ending balance | 502 |  | 502 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 502 |  | 502 |  |
Residential Portfolio Segment [Member] | Multifamily [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |
Beginning balance |  |  | (3) |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | (3)
Residential Portfolio Segment [Member] | Multifamily [Member] | Prior to Adoption of Asc 326 [Member] |  |  |  |  |
Beginning balance |  |  | 346 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 346
Construction [Member] |  |  |  |  |
Provision for credit losses |  |  | 47 |  |
Charge-offs |  |  | 0 |  |
Recoveries |  |  | 0 |  |
Ending balance | 647 |  | 647 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 647 |  | 647 |  |
Construction [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |
Beginning balance |  |  | 13 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 13
Construction [Member] | Prior to Adoption of Asc 326 [Member] |  |  |  |  |
Beginning balance |  |  | 587 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | 587
Construction [Member] | One-to-four Family Residential Construction [Member] |  |  |  |  |
Beginning balance | 171 |  |  |  |
Provision for credit losses | 7 |  | (19) |  |
Charge-offs | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Ending balance | 178 |  | 178 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 178 |  | 178 |  |
Construction [Member] | One-to-four Family Residential Construction [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |  |
Beginning balance |  |  | (9) |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | (9)
Construction [Member] | One-to-four Family Residential Construction [Member] | Prior to Adoption of Asc 326 [Member] |  |  |  |  |
Beginning balance |  |  | 206 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest |  |  |  |  | $ 206
Construction [Member] | Other Construction, Development and Land [Member] |  |  |  |  |
Beginning balance | 460 |  |  |  |
Provision for credit losses | 187 |  |  |  |
Charge-offs | 0 |  | 0 |  |
Recoveries | 0 |  |  |  |
Ending balance | 647 |  | 647 |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 647 |  | $ 647 |  |

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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References No definition available. + Details
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