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Loans and Allowance for Credit Losses - Non-Accrual at Amortized Cost (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, Nonaccrual |  |
Non-accrual amortized cost beginning of the reporting period | $ 23,659 | $ 29,942
Non-accrual amortized cost end of the reporting period | 33,997 | 23,659
Non-accrual with no related allowance | 22,358 | 15,133
Interest income recognized | 11 | 25
Loans ninety days or more past due and still accruing |  | 1,463
Multi-family Residential Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, Nonaccrual |  |
Non-accrual amortized cost beginning of the reporting period | 3,640 | 3,547
Non-accrual amortized cost end of the reporting period | 11,707 | 3,640
Non-accrual with no related allowance | 6,476 | 3,640
Interest income recognized | 5 | 2
Loans ninety days or more past due and still accruing |  | 1,463
Commercial Real Estate |  |
Financing Receivable, Excluding Accrued Interest, Nonaccrual |  |
Non-accrual amortized cost beginning of the reporting period |  | 254
Non-accrual amortized cost end of the reporting period | 6,376 |
Non-accrual with no related allowance | 6,376 |
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, Nonaccrual |  |
Non-accrual amortized cost beginning of the reporting period | 1,005 | 1,045
Non-accrual amortized cost end of the reporting period | 117 | 1,005
Non-accrual with no related allowance | 117 | 1,005
Interest income recognized | 1 | 3
One-To-Four Family - Residential Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, Nonaccrual |  |
Non-accrual amortized cost beginning of the reporting period | 4,670 | 3,953
Non-accrual amortized cost end of the reporting period | 812 | 4,670
Non-accrual with no related allowance | 812 | 4,670
Interest income recognized | 2 | 3
Small Business Administration Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, Nonaccrual |  |
Non-accrual amortized cost beginning of the reporting period | 2,576 | 950
Non-accrual amortized cost end of the reporting period | 2,531 | 2,576
Non-accrual with no related allowance | 2,531 | 2,576
Taxi Medallion Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, Nonaccrual |  |
Non-accrual amortized cost beginning of the reporting period | 11,768 | 20,193
Non-accrual amortized cost end of the reporting period |  | 11,768
Non-accrual with no related allowance |  | 3,242
Interest income recognized |  | 17
Commercial Business and Other Portfolio Segment [Member] |  |
Financing Receivable, Excluding Accrued Interest, Nonaccrual |  |
Non-accrual amortized cost beginning of the reporting period | 11,768 |
Non-accrual amortized cost end of the reporting period | 12,454 | $ 11,768
Non-accrual with no related allowance | 6,046 |
Interest income recognized | $ 3 |

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