Loans and Leases (Credit Quality Indicator Loan Categories) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Credit Quality Indicator [Line Items]
Unearned lease revenue	$ 903	$ 1,028
Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	122,594	126,884
Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	99,801	95,515
Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	130,558	124,092
Commercial Real Estate: Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	4,654	6,761
Commercial Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	357,607	353,252
Consumer: Home Equity Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	36,631	32,729
Consumer: Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	47,282	52,517
Consumer: Auto Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	105,870	105,576
Consumer: Direct Finance Leases [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	15,452	15,976
Consumer: Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	5,634	6,314
Consumer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	210,869	213,112
Residential: Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	167,164	145,951
Residential: Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	17,770	15,749
Residential Mortgages [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	184,934	161,700
Consumer And Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	395,803	374,812
Pass [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	115,585	125,272
Pass [Member] | Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	92,016	90,373
Pass [Member] | Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	121,887	116,577
Pass [Member] | Commercial Real Estate: Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	3,687	6,761
Pass [Member] | Commercial Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	333,175	338,983
Special mention [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	2,061	334
Special mention [Member] | Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	1,360	938
Special mention [Member] | Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	2,065	1,685
Special mention [Member] | Commercial Real Estate: Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	17
Special mention [Member] | Commercial Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	5,503	2,957
Substandard [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	4,948	1,278
Substandard [Member] | Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	6,425	4,204
Substandard [Member] | Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	6,606	5,830
Substandard [Member] | Commercial Real Estate: Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	950
Substandard [Member] | Commercial Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	18,929	11,312
Performing [Member] | Consumer: Home Equity Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	36,566	32,266
Performing [Member] | Consumer: Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	46,988	52,483
Performing [Member] | Consumer: Auto Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	105,854	105,551
Performing [Member] | Consumer: Direct Finance Leases [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	15,452	15,976
Performing [Member] | Consumer: Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	5,634	6,313
Performing [Member] | Consumer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	210,494	212,589
Performing [Member] | Residential: Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	166,158	144,437
Performing [Member] | Residential: Construction [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	17,770	15,749
Performing [Member] | Residential Mortgages [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	183,928	160,186
Performing [Member] | Consumer And Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	394,422	372,775
Non-performing [Member] | Consumer: Home Equity Installment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	65	463
Non-performing [Member] | Consumer: Home Equity Line Of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	294	34
Non-performing [Member] | Consumer: Auto Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	16	25
Non-performing [Member] | Consumer: Other [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net		1
Non-performing [Member] | Consumer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	375	523
Non-performing [Member] | Residential: Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	1,006	1,514
Non-performing [Member] | Residential Mortgages [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	1,006	1,514
Non-performing [Member] | Consumer And Residential [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, net	$ 1,381	$ 2,037