Loans and Allowance for Loan Losses (Average Recorded Investment and Interest Income Recognized on Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	$ 16,815	$ 12,824	$ 16,855	$ 12,847	$ 12,259
Recognized interest income	93	164	241	339	640
Commercial Loan [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	11,334	8,388	11,366	8,388	8,482
Recognized interest income	72	122	182	241	462
Commercial Loan [Member] | Owner Occupied Re [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	2,722	3,116	2,723	3,123	2,739
Recognized interest income	14	44	33	79	128
Commercial Loan [Member] | Non Owner Occupied Re [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	6,078	2,544	6,098	2,565	4,161
Recognized interest income	39	41	102	85	255
Commercial Loan [Member] | Business Loan [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	2,534	2,728	2,545	2,700	1,582
Recognized interest income	19	37	47	77	79
Commercial Loan [Member] | Construction Loans [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment
Recognized interest income
Consumer Loan [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	5,481	4,436	5,489	4,459	3,777
Recognized interest income	21	42	59	98	178
Consumer Loan [Member] | Other Consumer [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	142	155	144	156	153
Recognized interest income	1	1	2	2	5
Consumer Loan [Member] | Construction Loans [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment
Recognized interest income
Consumer Loan [Member] | Real Estate Loan [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	3,052	2,622	3,057	2,633	2,771
Recognized interest income	15	20	40	45	131
Consumer Loan [Member] | Home Equity Loan [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	2,287	1,659	2,288	1,670	853
Recognized interest income	$ 5	$ 21	$ 17	$ 51	$ 42