Loans and Allowance for Loan Losses (Schedule of Breakdown of Outstanding Loans by Risk Category) (Details) - Commercial Loan [Member] - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	$ 1,357,278	$ 1,298,338
Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	1,337,894	1,279,168
Special Mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	9,033	5,164
Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	10,351	14,006
Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans
Owner Occupied Re [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	419,316	407,851
Owner Occupied Re [Member] | Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	415,899	404,237
Owner Occupied Re [Member] | Special Mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	359	1,312
Owner Occupied Re [Member] | Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	3,058	2,302
Owner Occupied Re [Member] | Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans
Non Owner Occupied Re [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	570,139	501,878
Non Owner Occupied Re [Member] | Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	560,896	492,941
Non Owner Occupied Re [Member] | Special Mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	6,078	744
Non Owner Occupied Re [Member] | Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	3,165	8,193
Non Owner Occupied Re [Member] | Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans
Construction Loans [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	64,063	80,486
Construction Loans [Member] | Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	63,920	80,486
Construction Loans [Member] | Special Mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans
Construction Loans [Member] | Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	143
Construction Loans [Member] | Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans
Business Loan [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	303,760	308,123
Business Loan [Member] | Pass [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	297,179	301,504
Business Loan [Member] | Special Mention [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	2,596	3,108
Business Loan [Member] | Substandard [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans	3,985	3,511
Business Loan [Member] | Doubtful [Member]
Outstanding commercial and consumer loans by risk category
Outstanding commercial loans