Fair Value Disclosure - Significant Unobservable Inputs Used in the Fair Value Measurements (Details) $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair Value at December 31
MSRs	$ 730	$ 656	$ 930
Level 3 | Fair Value, Nonrecurring
Fair Value at December 31
Impaired Loans Individually Assessed	1,980	2,944
MSRs	141	656
Other real estate	$ 36	$ 34
Level 3 | Fair Value, Nonrecurring | Minimum | Measurement Input, Comparability Adjustment
Significant Unobservable Input Value
Impaired Loans Individually Assessed	0	0
Level 3 | Fair Value, Nonrecurring | Minimum | Measurement Input, Discount Rate
Significant Unobservable Input Value
MSRs	0.09	0.09
Level 3 | Fair Value, Nonrecurring | Minimum | Measurement Input, Prepayment Rate
Significant Unobservable Input Value
MSRs	0.12	0.12
Level 3 | Fair Value, Nonrecurring | Minimum | Measurement Input, Cost to Sell
Significant Unobservable Input Value
Other real estate owned, measurement input	0.10	0.10
Level 3 | Fair Value, Nonrecurring | Maximum | Measurement Input, Comparability Adjustment
Significant Unobservable Input Value
Impaired Loans Individually Assessed	0.50	0.50
Level 3 | Fair Value, Nonrecurring | Maximum | Measurement Input, Discount Rate
Significant Unobservable Input Value
MSRs	0.11	0.11
Level 3 | Fair Value, Nonrecurring | Maximum | Measurement Input, Prepayment Rate
Significant Unobservable Input Value
MSRs	0.24	0.27
Level 3 | Fair Value, Nonrecurring | Maximum | Measurement Input, Cost to Sell
Significant Unobservable Input Value
Other real estate owned, measurement input	0.30	0.30
Level 3 | Fair Value, Nonrecurring | Weighted Average | Measurement Input, Comparability Adjustment
Significant Unobservable Input Value
Impaired Loans Individually Assessed	0.158	0
Level 3 | Fair Value, Nonrecurring | Weighted Average | Measurement Input, Discount Rate
Significant Unobservable Input Value
MSRs	0.102	0.100
Level 3 | Fair Value, Nonrecurring | Weighted Average | Measurement Input, Prepayment Rate
Significant Unobservable Input Value
MSRs	0.160	0.187
Level 3 | Fair Value, Nonrecurring | Weighted Average | Measurement Input, Cost to Sell
Significant Unobservable Input Value
Other real estate owned, measurement input	0.266	0