Loans and Allowance for Loan Losses (Schedule of Key Information for Impaired Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Summary of key information for impaired loans
Unpaid Principal Balance	$ 14,539	$ 14,991
Impaired loans	12,819	12,572
Impaired loans with no related allowance for loan losses	7,932	6,344
Impaired loans with related allowance for loan losses	4,887	6,228
Related allowance for loan losses	1,514	2,014
Commercial Loan [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	9,448	9,893
Impaired loans	8,481	8,089
Impaired loans with no related allowance for loan losses	5,256	3,429
Impaired loans with related allowance for loan losses	3,225	4,660
Related allowance for loan losses	961	1,528
Commercial Loan [Member] | Owner Occupied Re [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	2,787	2,827
Impaired loans	2,723	2,762
Impaired loans with no related allowance for loan losses	2,277	2,311
Impaired loans with related allowance for loan losses	446	451
Related allowance for loan losses	75	75
Commercial Loan [Member] | Non Owner Occupied Re [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	4,474	3,321
Impaired loans	4,034	2,807
Impaired loans with no related allowance for loan losses	2,409	603
Impaired loans with related allowance for loan losses	1,625	2,204
Related allowance for loan losses	416	558
Commercial Loan [Member] | Business Loan [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	2,187	3,745
Impaired loans	1,724	2,520
Impaired loans with no related allowance for loan losses	570	515
Impaired loans with related allowance for loan losses	1,154	2,005
Related allowance for loan losses	470	895
Commercial Loan [Member] | Construction Loans [Member]
Summary of key information for impaired loans
Unpaid Principal Balance
Impaired loans
Impaired loans with no related allowance for loan losses
Impaired loans with related allowance for loan losses
Related allowance for loan losses
Consumer Loan [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	5,091	5,098
Impaired loans	4,338	4,483
Impaired loans with no related allowance for loan losses	2,676	2,915
Impaired loans with related allowance for loan losses	1,662	1,568
Related allowance for loan losses	553	486
Consumer Loan [Member] | Other Consumer [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	150	170
Impaired loans	150	170
Impaired loans with no related allowance for loan losses
Impaired loans with related allowance for loan losses	150	170
Related allowance for loan losses	17	30
Consumer Loan [Member] | Construction Loans [Member]
Summary of key information for impaired loans
Unpaid Principal Balance
Impaired loans
Impaired loans with no related allowance for loan losses
Impaired loans with related allowance for loan losses
Related allowance for loan losses
Consumer Loan [Member] | Real Estate Loan [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	2,674	2,993
Impaired loans	2,534	2,892
Impaired loans with no related allowance for loan losses	1,434	1,494
Impaired loans with related allowance for loan losses	1,100	1,398
Related allowance for loan losses	438	456
Consumer Loan [Member] | Home Equity Loan [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	2,267	1,935
Impaired loans	1,654	1,421
Impaired loans with no related allowance for loan losses	1,242	1,421
Impaired loans with related allowance for loan losses	412
Related allowance for loan losses	$ 98