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Loans and Allowance for Credit Losses - Nonaccrual Loans by Loan Category (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Financing Receivable, Nonaccrual [Line Items] |  |  |
Nonaccrual loans with no ACL | $ 479 | $ 1,432 | $ 707
Total nonaccrual loans | 1,715 | 1,596 | 1,723
Interest income recognized during the period on nonaccrual loans | 8 | 0 | 16
Commercial and Industrial [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Nonaccrual loans with no ACL |  |  | 0
Total nonaccrual loans |  |  | 1
Consumer Portfolio Segment [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Nonaccrual loans with no ACL | 43 |  |
Total nonaccrual loans | 200 |  |
Interest income recognized during the period on nonaccrual loans | 5 |  |
Residential Portfolio Segment [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Nonaccrual loans with no ACL | 436 | 1,432 | 707
Total nonaccrual loans | 1,515 | 1,596 | 1,722
Interest income recognized during the period on nonaccrual loans | $ 3 | $ 0 | $ 16

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