Fair Value Disclosures Fair Value Disclosures - Unobservable Inputs (Details) - Fair Value, Nonrecurring [Member] $ in Thousands	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	$ 3,817	$ 2,185
Other real estate owned	3,932	1,757
Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	3,817	2,185
Other real estate owned	3,932	1,757
Appraisal [Member] | Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	3,817	2,185
Other real estate owned	$ 3,932	$ 1,757
Appraisal [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member] | Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, measurement input	11	22
Other real estate owned, measurement input	23	29