Loans and Allowance for Loan Losses (Schedule of Nonperforming Assets, Including Nonaccruing TDRs) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Summary of nonperforming assets
Nonaccruing troubled debt restructurings	$ 4,198	$ 4,111
Total nonaccrual loans, including nonaccruing TDRs	8,751	6,794
Other real estate owned	1,684
Total nonperforming assets	$ 10,435	$ 6,794
Nonperforming assets as a percentage of:
Total assets	0.42%	0.30%
Gross loans	0.50%	0.35%
Total loans over 90 days past due	$ 2,742	$ 2,038
Loans over 90 days past due and still accruing
Accruing troubled debt restructurings	5,277	5,219
Commercial Loan [Member] | Owner Occupied Re [Member]
Summary of nonperforming assets
Nonaccruing
Commercial Loan [Member] | Non Owner Occupied Re [Member]
Summary of nonperforming assets
Nonaccruing	1,059	188
Commercial Loan [Member] | Business Loan [Member]
Summary of nonperforming assets
Nonaccruing	201	235
Commercial Loan [Member] | Construction Loans [Member]
Summary of nonperforming assets
Nonaccruing	143
Consumer Loan [Member] | Other Consumer [Member]
Summary of nonperforming assets
Nonaccruing
Consumer Loan [Member] | Construction Loans [Member]
Summary of nonperforming assets
Nonaccruing
Consumer Loan [Member] | Real Estate Loan [Member]
Summary of nonperforming assets
Nonaccruing	2,518	1,829
Consumer Loan [Member] | Home Equity Loan [Member]
Summary of nonperforming assets
Nonaccruing	$ 632	$ 431