Fair Value - Unobservable Inputs Used for the Level 3 (Details) $ in Thousands	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Level 3 | Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	$ 7,872	$ 9,454
Foreclosed assets	$ 896	$ 1,128
Discounted appraisals | Measurement Input, Collateral Discounts And Costs To Sell | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans (percent)	0	0
Foreclosed assets (percent)	0.13	0.36
Discounted appraisals | Measurement Input, Collateral Discounts And Costs To Sell | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans (percent)	1	1
Foreclosed assets (percent)	0	0
Discounted appraisals | Measurement Input, Collateral Discounts And Costs To Sell | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans (percent)	0.1091	0.2580
Foreclosed assets (percent)	0.0186	0.0260