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Loans, Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Sep. 30, 2023 | Dec. 31, 2023
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period | $ 10,557 | $ 7,858 | $ 10,525 | $ 5,646 | $ 5,646 |
Provision for (recovery of) credit losses | (220) | 131 | (143) | 163 |  |
Losses charged off | (86) | (49) | (164) | (85) |  |
Recoveries | 68 | 16 | 101 | 36 |  |
Balance, end of period | $ 11,270 | $ 7,956 | 11,270 | $ 7,956 |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date |  |  | $ 188 |  |  |
Ratio Of Net Charge-Offs To Average Loans | 0.00% | 0.01% | 0.00% | 0.01% |  |
Financing Receivable, Allowance for Credit Loss to Outstanding, Percent | 0.65% |  | 0.65% |  |  | 0.61%
Eagle Financial Bancorp, Inc. |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Provision for (recovery of) credit losses | $ 763 |  | $ 763 |  |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 188 |  |  |  |  |
Cumulative Effect Period Of Adoption Adjustment |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  |  | $ 2,196 | 2,196 |
Commercial Portfolio Segment |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period | 967 | $ 1,047 | 1,039 | 1,300 | 1,300 |
Provision for (recovery of) credit losses | 449 | 33 | 377 | 292 |  |
Losses charged off | 0 | (15) | 0 | (15) | (15) |
Recoveries | 0 | 0 | 0 | 0 |  |
Balance, end of period | $ 1,568 | $ 1,065 | 1,568 | $ 1,065 |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date |  |  | $ 101 |  |  |
Ratio Of Net Charge-Offs To Average Loans | 0.00% | 0.05% | 0.00% | 0.02% |  |
Commercial Portfolio Segment | Eagle Financial Bancorp, Inc. |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Provision for (recovery of) credit losses | $ 51 |  | $ 51 |  |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 101 |  |  |  |  |
Commercial Portfolio Segment | Cumulative Effect Period Of Adoption Adjustment |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  |  | $ (512) | (512) |
Commercial Real Estate Portfolio Segment |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period | 6,486 | $ 4,927 | 5,414 | 3,609 | 3,609 |
Provision for (recovery of) credit losses | (512) | 96 | 560 | (26) |  |
Losses charged off | 0 | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |  |
Balance, end of period | $ 6,228 | $ 5,023 | 6,228 | $ 5,023 |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date |  |  | $ 8 |  |  |
Ratio Of Net Charge-Offs To Average Loans | 0.00% | 0.00% | 0.00% | 0.00% |  |
Commercial Real Estate Portfolio Segment | Eagle Financial Bancorp, Inc. |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Provision for (recovery of) credit losses | $ 246 |  | $ 246 |  |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 8 |  |  |  |  |
Commercial Real Estate Portfolio Segment | Cumulative Effect Period Of Adoption Adjustment |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  |  | $ 1,440 | 1,440 |
Residential Portfolio Segment |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period | 2,852 | $ 1,351 | 3,816 | 624 | 624 |
Provision for (recovery of) credit losses | (184) | (25) | (1,148) | (134) |  |
Losses charged off | 0 | 0 | 0 | 0 | (4) |
Recoveries | 9 | 0 | 9 | 0 |  |
Balance, end of period | $ 3,222 | $ 1,326 | 3,222 | $ 1,326 |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date |  |  | $ 79 |  |  |
Ratio Of Net Charge-Offs To Average Loans | 0.01% | 0.00% | 0.00% | 0.00% |  |
Residential Portfolio Segment | Eagle Financial Bancorp, Inc. |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Provision for (recovery of) credit losses | $ 466 |  | $ 466 |  |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 79 |  |  |  |  |
Residential Portfolio Segment | Cumulative Effect Period Of Adoption Adjustment |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  |  | $ 836 | 836 |
Consumer |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period | 232 | $ 526 | 238 | 86 | 86 |
Provision for (recovery of) credit losses | (21) | 12 | (32) | 9 |  |
Losses charged off | (40) | (4) | (43) | (9) | (83) |
Recoveries | 41 | 1 | 49 | 3 |  |
Balance, end of period | $ 212 | $ 535 | 212 | $ 535 |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date |  |  | $ 0 |  |  |
Ratio Of Net Charge-Offs To Average Loans | 0.02% | 0.04% | (0.05%) | 0.04% |  |
Consumer | Eagle Financial Bancorp, Inc. |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Provision for (recovery of) credit losses | $ 0 |  | $ 0 |  |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 0 |  |  |  |  |
Consumer | Cumulative Effect Period Of Adoption Adjustment |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  |  | $ 446 | 446 |
Agricultural |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period | 18 | $ 7 | 18 | 22 | 22 |
Provision for (recovery of) credit losses | 20 | (2) | 20 | (8) |  |
Losses charged off | 0 | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |  |
Balance, end of period | $ 38 | $ 5 | 38 | $ 5 |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date |  |  | $ 0 |  |  |
Ratio Of Net Charge-Offs To Average Loans | 0.00% | 0.00% | 0.00% | 0.00% |  |
Agricultural | Eagle Financial Bancorp, Inc. |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Provision for (recovery of) credit losses | $ 0 |  | $ 0 |  |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 0 |  |  |  |  |
Agricultural | Cumulative Effect Period Of Adoption Adjustment |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  |  | $ (9) | (9) |
Other |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period | 2 | $ 0 | 0 | 5 | 5 |
Provision for (recovery of) credit losses | 28 | 17 | 80 | 30 |  |
Losses charged off | (46) | (30) | (121) | (61) | (166) |
Recoveries | 18 | 15 | 43 | 33 |  |
Balance, end of period | $ 2 | $ 2 | 2 | $ 2 |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date |  |  | $ 0 |  |  |
Ratio Of Net Charge-Offs To Average Loans | (73.60%) | 91.85% | 121.28% | 79.90% |  |
Other | Eagle Financial Bancorp, Inc. |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Provision for (recovery of) credit losses | $ 0 |  | $ 0 |  |  |
Financing Receivable, Excluding Accrued Interest, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | $ 0 |  |  |  |  |
Other | Cumulative Effect Period Of Adoption Adjustment |  |  |  |  |  |
Allowance for loan losses [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  |  | $ (5) | $ (5) |

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