Allowance for Credit Losses on Loans and Off-Balance Sheet Credit Exposures - Schedule Of Impaired Financing Receivables (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 2,258
Principal Balance	2,268
Related Allowance	30
With No Allowance Recorded, Recorded Investment	7,213
With No Allowance Recorded, Principal Balance	8,280
Total, Recorded Investment	9,471
Total, Principal Balance	10,548
Average Recorded Investment	7,516
Interest Income Recognized	314
Guarantees on impaired loans	(423)
Residential real estate
Financing Receivable, Impaired [Line Items]
Recorded Investment	190
Principal Balance	200
Related Allowance	21
With No Allowance Recorded, Recorded Investment	1,283
With No Allowance Recorded, Principal Balance	1,787
Total, Recorded Investment	1,473
Total, Principal Balance	1,987
Average Recorded Investment	1,570
Interest Income Recognized	101
Construction Real Estate
Financing Receivable, Impaired [Line Items]
Related Allowance	0
With No Allowance Recorded, Recorded Investment	58
With No Allowance Recorded, Principal Balance	83
Total, Recorded Investment	58
Total, Principal Balance	83
Average Recorded Investment	116
Interest Income Recognized	27
Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment	2,068
Principal Balance	2,068
Related Allowance	9
With No Allowance Recorded, Recorded Investment	5,865
With No Allowance Recorded, Principal Balance	6,403
Total, Recorded Investment	7,933
Total, Principal Balance	8,471
Average Recorded Investment	5,822
Interest Income Recognized	185
Commercial
Financing Receivable, Impaired [Line Items]
Related Allowance	0
With No Allowance Recorded, Recorded Investment	7
With No Allowance Recorded, Principal Balance	7
Total, Recorded Investment	7
Total, Principal Balance	7
Average Recorded Investment	8
Interest Income Recognized	$ 1