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Loans Receivable and Allowance for Credit Losses - Individually Evaluated for Impairment (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Total allowance for credit losses | $ 14,989 | $ 13,777 | $ 15,925 | $ 24,098 | $ 24,780 | $ 10,310
Business Activities Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated loans | 5,717 |  | 4,205 |  |  |
Collectively evaluated loans | 9,272 |  | 11,720 |  |  |
Total allowance for credit losses | 14,989 |  | 15,925 |  |  |
Individually evaluated loans | 35,890 |  | 17,133 |  |  |
Collectively evaluated loans | 740,412 |  | 831,726 |  |  |
Loans receivable, gross | 776,302 |  | 848,859 |  |  |
Commercial Real Estate |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Total allowance for credit losses | 7,958 | 5,620 | 6,089 | 10,039 | 9,809 | 6,966
Commercial Real Estate | Business Activities Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated loans | 5,717 |  | 3,813 |  |  |
Collectively evaluated loans | 2,241 |  | 2,276 |  |  |
Total allowance for credit losses | 7,958 |  | 6,089 |  |  |
Individually evaluated loans | 27,675 |  | 12,775 |  |  |
Collectively evaluated loans | 430,881 |  | 459,318 |  |  |
Loans receivable, gross | 458,556 |  | 472,093 |  |  |
Residential Real Estate |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Total allowance for credit losses | 678 | 671 | 607 | 1,027 | 853 | 665
Residential Real Estate | Business Activities Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated loans | 0 |  | 0 |  |  |
Collectively evaluated loans | 678 |  | 607 |  |  |
Total allowance for credit losses | 678 |  | 607 |  |  |
Individually evaluated loans | 172 |  | 0 |  |  |
Collectively evaluated loans | 99,247 |  | 106,783 |  |  |
Loans receivable, gross | 99,419 |  | 106,783 |  |  |
Commercial and Industrial |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Total allowance for credit losses | 1,215 | 1,199 | 1,269 | 1,673 | 1,799 | 1,403
Commercial and Industrial | Business Activities Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated loans | 0 |  | 392 |  |  |
Collectively evaluated loans | 1,215 |  | 877 |  |  |
Total allowance for credit losses | 1,215 |  | 1,269 |  |  |
Individually evaluated loans | 5,686 |  | 3,904 |  |  |
Collectively evaluated loans | 129,058 |  | 159,661 |  |  |
Loans receivable, gross | 134,744 |  | 163,565 |  |  |
Consumer and Other |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Total allowance for credit losses | 5,133 | 6,280 | 7,843 | 11,275 | 12,251 | 1,207
Consumer and Other | Business Activities Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated loans | 0 |  | 0 |  |  |
Collectively evaluated loans | 5,133 |  | 7,843 |  |  |
Total allowance for credit losses | 5,133 |  | 7,843 |  |  |
Individually evaluated loans | 0 |  | 0 |  |  |
Collectively evaluated loans | 77,397 |  | 99,688 |  |  |
Loans receivable, gross | 77,397 |  | 99,688 |  |  |
Construction |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Total allowance for credit losses | 5 | 7 | 4 | 33 | 21 | 24
Construction | Business Activities Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated loans | 0 |  | 0 |  |  |
Collectively evaluated loans | 5 |  | 4 |  |  |
Total allowance for credit losses | 5 |  | 4 |  |  |
Individually evaluated loans | 0 |  | 454 |  |  |
Collectively evaluated loans | 3,829 |  | 3,812 |  |  |
Loans receivable, gross | 3,829 |  | 4,266 |  |  |
Construction to Permanent - CRE |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Total allowance for credit losses | 0 | 0 | 113 | 51 | 47 | 10
Construction to Permanent - CRE | Business Activities Loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Individually evaluated loans | 0 |  | 0 |  |  |
Collectively evaluated loans | 0 |  | 113 |  |  |
Total allowance for credit losses | 0 |  | 113 |  |  |
Individually evaluated loans | 2,357 |  | 0 |  |  |
Collectively evaluated loans | 0 |  | 2,464 |  |  |
Loans receivable, gross | 2,357 |  | 2,464 |  |  |
Unallocated |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Total allowance for credit losses | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 35

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