Fair Value Disclosures - Unobservable Inputs (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	$ 1,737,000	$ 2,455,000
OREO	2,499,000	4,619,000
Fair Value, Inputs, Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	1,737,000	2,455,000
OREO	2,499,000	4,619,000
Appraisal And Discounted Cash Flow [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	1,737,000	2,455,000
OREO	$ 2,499,000	$ 4,619,000
Appraisal And Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, measurement input	38	9
OREO, measurement input	25	22