Loans And Allowance For Loan Losses (Age Analysis Of Past Due Financing Receivables) (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		$ 3,817	$ 3,498
Current		536,815	531,099
Total loans	[1]	540,632	534,597
Recorded Investment > 90 Days & Accruing
Commercial Mortgages-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		755	516
Current		98,701	97,910
Total loans		99,456	98,426
Recorded Investment > 90 Days & Accruing
Commercial Mortgages-Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		518	617
Current		173,797	174,657
Total loans		174,315	175,274
Recorded Investment > 90 Days & Accruing
Commercial Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current		16,193	15,471
Total loans		16,193	15,471
Recorded Investment > 90 Days & Accruing
Consumer Unsecured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		187	9
Current		8,354	8,745
Total loans		8,541	8,754
Recorded Investment > 90 Days & Accruing
Consumer Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		745	413
Current		76,003	77,024
Total loans		76,748	77,437
Recorded Investment > 90 Days & Accruing
Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		1,314	1,613
Current		55,771	56,559
Total loans		57,085	58,172
Recorded Investment > 90 Days & Accruing
Residential Consumer Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current		8,967	8,186
Total loans		8,967	8,186
Recorded Investment > 90 Days & Accruing
30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		1,948	1,671
30 to 59 Days Past Due [Member] | Commercial Mortgages-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		456	209
30 to 59 Days Past Due [Member] | Commercial Mortgages-Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		17	149
30 to 59 Days Past Due [Member] | Consumer Unsecured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		187	8
30 to 59 Days Past Due [Member] | Consumer Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		531	369
30 to 59 Days Past Due [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		732	882
60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		208	733
60 to 89 Days Past Due [Member] | Commercial Mortgages-Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due			468
60 to 89 Days Past Due [Member] | Consumer Unsecured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due			1
60 to 89 Days Past Due [Member] | Consumer Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		17	44
60 to 89 Days Past Due [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		162	164
Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		1,661	1,094
Greater than 90 Days Past Due [Member] | Commercial Mortgages-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		299	307
Greater than 90 Days Past Due [Member] | Commercial Mortgages-Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		501
Greater than 90 Days Past Due [Member] | Consumer Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		197
Greater than 90 Days Past Due [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		420	567
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		298	330
Current		99,029	92,547
Total loans		99,327	92,877
Recorded Investment > 90 Days & Accruing
Commercial [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		25	54
Commercial [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		29	56
Commercial [Member] | Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		244	220
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans		289,964	289,171
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans		66,052	66,358
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans		$ 85,289	$ 86,191

[1] Includes net deferred costs and premiums of $454 and $457 as of March 31, 2019 and December 31, 2018, respectively.