Loans and Allowance for Loan and Lease Losses - Non-accruing Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Non-accruing loans	$ 3,086	$ 3,723
Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Non-accruing loans	12	8
Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Non-accruing loans	1,248	1,423
Real Estate [Member] | Secured By Non-farm Non residential Properties [Member]
Non-accruing loans	1,340	1,426
Commercial and Industrial Loans [Member]
Non-accruing loans	74	27
Consumer Portfolio Segment | Direct Consumer [Member]
Non-accruing loans	219	558
Consumer Portfolio Segment | Branch Retail [Member]
Non-accruing loans	144	$ 281
Consumer Portfolio Segment | Indirect Sales [Member]
Non-accruing loans	$ 49