Fair Value - Assets and liabilities measured at fair value on a nonrecurring basis (Details) $ in Thousands	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Fair Value
OREO	$ 2,160	$ 2,736
Individually evaluated loans	96,240	75,418
Nonrecurring basis | Fair Value
Fair Value
OREO	2,160	2,736
Bank property held for sale	25,043	9,578
Individually evaluated loans	52,368	20,802
Nonrecurring basis | Significant Unobservable Inputs (Level 3)
Fair Value
OREO	2,160	2,736
Bank property held for sale	25,043	9,578
Individually evaluated loans	$ 52,368	$ 20,802
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Impaired loans
Quantitative Information about Level 3 Fair Value Measurements
Long-term Debt, Valuation Technique [Extensible List]	us-gaap:MarketApproachValuationTechniqueMember, us-gaap:ValuationTechniqueDiscountedCashFlowMember	us-gaap:MarketApproachValuationTechniqueMember, us-gaap:ValuationTechniqueDiscountedCashFlowMember
Long-term Debt, Measurement Input [Extensible List]	us-gaap:MeasurementInputDiscountRateMember	us-gaap:MeasurementInputDiscountRateMember
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Impaired loans | Weighted average
Quantitative Information about Level 3 Fair Value Measurements
Discount rate (as a percent)	25	9
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | OREO
Quantitative Information about Level 3 Fair Value Measurements
Long-term Debt, Valuation Technique [Extensible List]	us-gaap:MarketApproachValuationTechniqueMember	us-gaap:MarketApproachValuationTechniqueMember
Long-term Debt, Measurement Input [Extensible List]	us-gaap:MeasurementInputCostToSellMember, us-gaap:MeasurementInputDiscountRateMember	us-gaap:MeasurementInputCostToSellMember, us-gaap:MeasurementInputDiscountRateMember
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | OREO | Weighted average
Quantitative Information about Level 3 Fair Value Measurements
Discount rate (as a percent)	15	24