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Loans and Allowance for Credit Losses - Schedule of Allowance for Credit Losses and Recorded Investment in Financing Receivables (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Beginning balance | $ 19,969 | $ 17,861 | $ 17,861
Charge-offs | (60) | (117) | (506)
Recoveries | 40 | 26 |
Allowance for Credit Losses, Ending balance | 20,172 | 19,485 | 19,969
Financing Receivable Excluding Unfunded Commitments |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Provisions (credits) | 223 | 97 |
Impact of CECL adoption |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Ending balance |  | 1,618 |
Commercial Real Estate |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Beginning balance | 12,010 | 10,016 | 10,016
Charge-offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for Credit Losses, Ending balance | 12,240 | 11,032 | 12,010
Commercial Real Estate | Financing Receivable Excluding Unfunded Commitments |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Provisions (credits) | 230 | (90) |
Commercial Real Estate | Impact of CECL adoption |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Ending balance |  | 1,106 |
Residential Mortgage |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Beginning balance | 3,303 | 3,029 | 3,029
Charge-offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for Credit Losses, Ending balance | 3,227 | 3,366 | 3,303
Residential Mortgage | Financing Receivable Excluding Unfunded Commitments |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Provisions (credits) | (76) | 40 |
Residential Mortgage | Impact of CECL adoption |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Ending balance |  | 297 |
Commercial and Industrial |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Beginning balance | 2,048 | 2,848 | 2,848
Charge-offs | 0 | (29) |
Recoveries | 15 | 1 |
Allowance for Credit Losses, Ending balance | 1,960 | 2,105 | 2,048
Commercial and Industrial | Financing Receivable Excluding Unfunded Commitments |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Provisions (credits) | (103) | 47 |
Commercial and Industrial | Impact of CECL adoption |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Ending balance |  | (762) |
Home Equity Lines of Credit |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Beginning balance | 397 | 347 | 347
Charge-offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for Credit Losses, Ending balance | 314 | 379 | 397
Home Equity Lines of Credit | Financing Receivable Excluding Unfunded Commitments |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Provisions (credits) | (83) | 15 |
Home Equity Lines of Credit | Impact of CECL adoption |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Ending balance |  | 17 |
Real Estate Construction |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Beginning balance | 2,070 | 1,000 | 1,000
Charge-offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for Credit Losses, Ending balance | 2,313 | 2,465 | 2,070
Real Estate Construction | Financing Receivable Excluding Unfunded Commitments |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Provisions (credits) | 243 | 118 |
Real Estate Construction | Impact of CECL adoption |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Ending balance |  | 1,347 |
Consumer |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Beginning balance | 141 | 376 | 376
Charge-offs | (60) | (88) |
Recoveries | 25 | 25 |
Allowance for Credit Losses, Ending balance | 118 | 138 | 141
Consumer | Financing Receivable Excluding Unfunded Commitments |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Provisions (credits) | 12 | (33) |
Consumer | Impact of CECL adoption |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Ending balance |  | (142) |
Unallocated |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Beginning balance | 0 | 245 | 245
Charge-offs | 0 | 0 |
Recoveries | 0 | 0 |
Allowance for Credit Losses, Ending balance | 0 | 0 | $ 0
Unallocated | Financing Receivable Excluding Unfunded Commitments |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Provisions (credits) | $ 0 | 0 |
Unallocated | Impact of CECL adoption |  |  |
Allowance for Loan Losses [Roll Forward] |  |  |
Allowance for Credit Losses, Ending balance |  | $ (245) |

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