Fair Value of Assets and Liabilities - Valuation Technique (Details) - Level 3 $ in Thousands	Jun. 30, 2023 USD ($) item	Dec. 31, 2022 USD ($)
Impaired loans | Appraisal value | Property specific adjustment
Valuation techniques and significant unobservable inputs
Individually evaluated	$ 2,390	$ 2,813
Foreclosed assets | Appraisal value | Property specific adjustment
Valuation techniques and significant unobservable inputs
Foreclosed assets		$ 30
Servicing rights
Valuation techniques and significant unobservable inputs
Servicing Asset, Valuation Technique [Extensible List]	us-gaap:ValuationTechniqueDiscountedCashFlowMember	us-gaap:ValuationTechniqueDiscountedCashFlowMember
Servicing rights | Prepayment speed assumptions
Valuation techniques and significant unobservable inputs
Servicing rights	$ 2,351	$ 2,643
Servicing rights | Prepayment speed assumptions | Minimum
Valuation techniques and significant unobservable inputs
Servicing Asset, Measurement Input	83	103
Servicing rights | Prepayment speed assumptions | Maximum
Valuation techniques and significant unobservable inputs
Servicing Asset, Measurement Input	134	137
Servicing rights | Prepayment speed assumptions | Weighted average
Valuation techniques and significant unobservable inputs
Servicing Asset, Measurement Input	101	115
Servicing rights | Discount rate
Valuation techniques and significant unobservable inputs
Servicing Asset, Measurement Input	0.110	0.105
Servicing rights | Discount rate | Weighted average
Valuation techniques and significant unobservable inputs
Servicing Asset, Measurement Input	0.110	0.105