Loans and Allowance for Loan Losses (Schedule of Outstanding Consumer Loans by Risk Category) (Details) - Consumer Loan [Member] - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	$ 679,404	$ 645,187
Other Consumer [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	22,294	25,733
Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	668,055	635,996
Pass [Member] | Other Consumer [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	22,003	25,421
Special Mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	3,530	3,303
Special Mention [Member] | Other Consumer [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	251	261
Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	7,819	5,888
Substandard [Member] | Other Consumer [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	40	51
Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Doubtful [Member] | Other Consumer [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Real Estate Loan [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	437,742	398,245
Real Estate Loan [Member] | Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	431,688	392,572
Real Estate Loan [Member] | Special Mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	1,949	2,267
Real Estate Loan [Member] | Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	4,105	3,406
Real Estate Loan [Member] | Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Home Equity Loan [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	173,739	179,738
Home Equity Loan [Member] | Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	168,735	176,532
Home Equity Loan [Member] | Special Mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	1,330	775
Home Equity Loan [Member] | Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	3,674	2,431
Home Equity Loan [Member] | Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Construction Loans [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	45,629	41,471
Construction Loans [Member] | Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans	45,629	41,471
Construction Loans [Member] | Special Mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Construction Loans [Member] | Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans
Construction Loans [Member] | Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding consumer loans