Loans (Schedule Of Loan Portfolio Composition) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 1,494,962	$ 1,485,680	$ 1,423,757
Total Commercial Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,288,828	1,279,810	1,221,841
Total Commercial Related Loans [Member] | Builder & Developer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	165,131	154,977	163,839
Total Commercial Related Loans [Member] | Commercial Real Estate Investor [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	209,134	210,501	230,981
Total Commercial Related Loans [Member] | Residential Real Estate Investor [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	233,306	231,118	222,940
Total Commercial Related Loans [Member] | Hotel/Motel [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	84,521	77,480	75,074
Total Commercial Related Loans [Member] | Wholesale & Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	112,046	117,280	102,673
Total Commercial Related Loans [Member] | Manufacturing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	78,639	80,075	67,466
Total Commercial Related Loans [Member] | Agriculture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	65,427	65,540	62,565
Total Commercial Related Loans [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	340,624	342,839	296,303
Total Consumer Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	206,134	205,870	201,916
Total Consumer Related Loans [Member] | Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	86,599	83,977	80,826
Total Consumer Related Loans [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	97,363	98,019	97,646
Total Consumer Related Loans [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 22,172	$ 23,874	$ 23,444
Loan and Loan Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	100.00%	100.00%
Loan and Loan Receivable [Member] | Total Commercial Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	86.20%	86.10%
Loan and Loan Receivable [Member] | Total Commercial Related Loans [Member] | Builder & Developer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	11.00%	10.40%
Loan and Loan Receivable [Member] | Total Commercial Related Loans [Member] | Commercial Real Estate Investor [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	14.00%	14.20%
Loan and Loan Receivable [Member] | Total Commercial Related Loans [Member] | Residential Real Estate Investor [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	15.60%	15.60%
Loan and Loan Receivable [Member] | Total Commercial Related Loans [Member] | Hotel/Motel [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	5.70%	5.20%
Loan and Loan Receivable [Member] | Total Commercial Related Loans [Member] | Wholesale & Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	7.50%	7.90%
Loan and Loan Receivable [Member] | Total Commercial Related Loans [Member] | Manufacturing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	5.30%	5.40%
Loan and Loan Receivable [Member] | Total Commercial Related Loans [Member] | Agriculture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	4.40%	4.40%
Loan and Loan Receivable [Member] | Total Commercial Related Loans [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	22.70%	23.00%
Loan and Loan Receivable [Member] | Total Consumer Related Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	13.80%	13.90%
Loan and Loan Receivable [Member] | Total Consumer Related Loans [Member] | Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	5.80%	5.70%
Loan and Loan Receivable [Member] | Total Consumer Related Loans [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	6.50%	6.60%
Loan and Loan Receivable [Member] | Total Consumer Related Loans [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
% Total Loans	1.50%	1.60%