Loans and Allowance for Loan Losses (Schedule of Outstanding Commercial and Consumer Loans as Non-Accruals by Class) (Details) - Commercial Loan [Member] - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Outstanding commercial and consumer loans which include loans on nonaccrual status
Current	$ 1,355,628	$ 1,296,466
30-59 days past due	475	1,035
60-89 days past due	355
Greater than 90 days	820	837
Total commercial loans	1,357,278	1,298,338
Owner Occupied Re [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual status
Current	418,765	406,594
30-59 days past due		706
60-89 days past due
Greater than 90 days	551	551
Total commercial loans	419,316	407,851
Non Owner Occupied Re [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual status
Current	569,552	501,676
30-59 days past due		151
60-89 days past due	355
Greater than 90 days	232	51
Total commercial loans	570,139	501,878
Construction Loans [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual status
Current	64,063	80,486
30-59 days past due
60-89 days past due
Greater than 90 days
Total commercial loans	64,063	80,486
Business Loan [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual status
Current	303,248	307,710
30-59 days past due	475	178
60-89 days past due
Greater than 90 days	37	235
Total commercial loans	$ 303,760	$ 308,123