Loans and Allowance for Loan Losses (Allowance For Loan Losses By Segment) (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Financing Receivable Impaired [Line Items]
Beginning Balance	$ 4,973	$ 5,456	$ 5,456
Charge-Offs	164	1,282	1,313
Recoveries	1,097	150	201
Provision	755	567	629
Ending Balance	6,661	4,891	4,973
Ending balance: Individually evaluated for impairment	330		300
Ending balance: collectively evaluated for impairment	6,331		4,673
Ending balance	805,479		645,207
Ending balance individually evaluated for impairment	7,350		7,403
Ending balance collectively evaluated for impairment	798,129		637,804
Construction and Farmland
Financing Receivable Impaired [Line Items]
Beginning Balance	446	583	583
Recoveries	5		8
Provision	755		(145)
Ending Balance	1,206		446
Ending balance: Individually evaluated for impairment	102		100
Ending balance: collectively evaluated for impairment	1,104		346
Ending balance	62,988		56,478
Ending balance individually evaluated for impairment	226		433
Ending balance collectively evaluated for impairment	62,762		56,045
Residential
Financing Receivable Impaired [Line Items]
Beginning Balance	1,601	1,788	1,788
Charge-Offs			406
Recoveries	257		72
Provision	315		147
Ending Balance	2,173		1,601
Ending balance: Individually evaluated for impairment	152		51
Ending balance: collectively evaluated for impairment	2,021		1,550
Ending balance	268,697		233,995
Ending balance individually evaluated for impairment	3,906		3,681
Ending balance collectively evaluated for impairment	264,791		230,314
Commercial Real Estate
Financing Receivable Impaired [Line Items]
Beginning Balance	1,991	1,988	1,988
Recoveries	302		20
Provision	(763)		(17)
Ending Balance	1,530		1,991
Ending balance: Individually evaluated for impairment	76		149
Ending balance: collectively evaluated for impairment	1,454		1,842
Ending balance	312,448		286,600
Ending balance individually evaluated for impairment	3,034		3,053
Ending balance collectively evaluated for impairment	309,414		283,547
Commercial - Non Real Estate
Financing Receivable Impaired [Line Items]
Beginning Balance	565	919	919
Charge-Offs	49		850
Recoveries	496		52
Provision	220		444
Ending Balance	1,232		565
Ending balance: collectively evaluated for impairment	1,232		565
Ending balance	134,233		46,543
Ending balance individually evaluated for impairment	165		228
Ending balance collectively evaluated for impairment	134,068		46,315
Consumer
Financing Receivable Impaired [Line Items]
Beginning Balance	54	53	53
Charge-Offs	83		5
Recoveries	30		26
Provision	213		(20)
Ending Balance	214		54
Ending balance: collectively evaluated for impairment	214		54
Ending balance	16,166		9,541
Ending balance individually evaluated for impairment	19		8
Ending balance collectively evaluated for impairment	16,147		9,533
All Other Loans
Financing Receivable Impaired [Line Items]
Beginning Balance	120	97	97
Charge-Offs	32		52
Recoveries	7		23
Provision	129		52
Ending Balance	224		120
Ending balance: collectively evaluated for impairment	224		120
Ending balance	10,947		12,050
Ending balance collectively evaluated for impairment	10,947		12,050
Unallocated
Financing Receivable Impaired [Line Items]
Beginning Balance	196	$ 28	28
Provision	(114)		168
Ending Balance	82		196
Ending balance: collectively evaluated for impairment	$ 82		$ 196