Allowance for Credit Losses on Loans and Off-Balance Sheet Credit Exposures - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) loan	Dec. 31, 2022 USD ($) loan
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-Offs	$ 8,000	$ 4,000
Number of residential real estate loans in process of foreclosure | loan	1	1
Recorded investment in residential real estate loans in process of foreclosure	$ 17,000	$ 28,000
Aggregate interest on nonaccrual loans not recognized	143,000	59,000
Individually impaired loans evaluation threshold	500,000
Loans modified in prior 12 months that subsequently defaulted	0
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-Offs	8,000	3,000
Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Charge-Offs	0	$ 1,000
Individually impaired loans evaluation threshold	$ 500,000