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Loans Receivable and Allowance for Credit Losses - Impaired Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: average recorded investment | $ 5,189 | $ 9,839 | $ 14,900
With no related allowance recorded: interest income recognized | 220 | 208 | 182
With a related allowance recorded: average recorded investment | 17,472 | 11,762 | 11,212
With a related allowance recorded: interest income recognized | 910 | 147 | 197
Impaired loans, average recorded investment | 22,661 | 21,601 | 26,112
Impaired loans, interest income recognized | 1,130 | 355 | 379
Business Activities Loans |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: recorded investment | 5,558 | 7,290 |
With no related allowance recorded: principal outstanding | 9,239 | 7,590 |
With a related allowance recorded: recorded investment | 11,575 | 11,626 |
With a related allowance recorded: principal outstanding | 13,296 | 11,624 |
Related Allowance | 4,205 | 6,043 |
Recorded Investment | 17,133 | 18,916 |
Principal Outstanding | 22,535 | 19,214 |
Commercial Real Estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: average recorded investment | 1,164 | 5,702 | 7,636
With no related allowance recorded: interest income recognized | 181 | 87 | 103
With a related allowance recorded: average recorded investment | 12,957 | 8,307 | 8,869
With a related allowance recorded: interest income recognized | 696 | 113 | 66
Impaired loans, average recorded investment | 14,121 | 14,009 | 16,505
Impaired loans, interest income recognized | 877 | 200 | 169
Commercial Real Estate | Business Activities Loans |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: recorded investment | 2,838 | 2,435 |
With no related allowance recorded: principal outstanding | 5,879 | 2,428 |
With a related allowance recorded: recorded investment | 9,937 | 8,806 |
With a related allowance recorded: principal outstanding | 10,137 | 8,656 |
Related Allowance | 3,813 | 5,430 |
Recorded Investment | 12,775 | 11,241 |
Principal Outstanding | 16,016 | 11,084 |
Residential Real Estate |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: average recorded investment | 534 | 2,925 | 4,014
With no related allowance recorded: interest income recognized | 0 | 35 | 51
With a related allowance recorded: average recorded investment | 1,156 | 107 | 109
With a related allowance recorded: interest income recognized | 0 | 6 | 5
Impaired loans, average recorded investment | 1,690 | 3,032 | 4,123
Impaired loans, interest income recognized | 0 | 41 | 56
Residential Real Estate | Business Activities Loans |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: recorded investment | 0 | 2,402 |
With no related allowance recorded: principal outstanding | 0 | 2,224 |
With a related allowance recorded: recorded investment | 0 | 106 |
With a related allowance recorded: principal outstanding | 0 | 105 |
Related Allowance | 0 | 5 |
Recorded Investment | 0 | 2,508 |
Principal Outstanding | 0 | 2,329 |
Commercial and Industrial |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: average recorded investment | 2,580 | 748 | 2,548
With no related allowance recorded: interest income recognized | 5 | 63 | 12
With a related allowance recorded: average recorded investment | 3,359 | 3,348 | 2,234
With a related allowance recorded: interest income recognized | 214 | 28 | 126
Impaired loans, average recorded investment | 5,939 | 4,096 | 4,782
Impaired loans, interest income recognized | 219 | 91 | 138
Commercial and Industrial | Business Activities Loans |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: recorded investment | 2,266 | 1,939 |
With no related allowance recorded: principal outstanding | 2,899 | 2,424 |
With a related allowance recorded: recorded investment | 1,638 | 2,714 |
With a related allowance recorded: principal outstanding | 3,159 | 2,863 |
Related Allowance | 392 | 608 |
Recorded Investment | 3,904 | 4,653 |
Principal Outstanding | 6,058 | 5,287 |
Consumer and Other |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: average recorded investment | 158 | 464 | 702
With no related allowance recorded: interest income recognized | 0 | 23 | 16
Impaired loans, average recorded investment | 158 | 464 | 702
Impaired loans, interest income recognized | 0 | 23 | 16
Consumer and Other | Business Activities Loans |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: recorded investment | 0 | 514 |
With no related allowance recorded: principal outstanding | 0 | 514 |
Related Allowance | 0 | 0 |
Recorded Investment | 0 | 514 |
Principal Outstanding | 0 | 514 |
Construction |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: average recorded investment | 753 | 0 | 0
With no related allowance recorded: interest income recognized | 34 | 0 | 0
Impaired loans, average recorded investment | 753 | 0 |
Impaired loans, interest income recognized | 34 | 0 |
Construction | Business Activities Loans |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
With no related allowance recorded: recorded investment | 454 | 0 |
With no related allowance recorded: principal outstanding | 461 | 0 |
Related Allowance | 0 | 0 |
Recorded Investment | 454 | 0 |
Principal Outstanding | $ 461 | $ 0 |

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