Allowance For Loan Losses (Schedule Of Impaired Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Recorded investment	$ 4,047	$ 7,521
With no related allowance recorded, Unpaid principal balance	4,073	7,546
With an allowance recorded, Recorded investment	2,644	2,985
With an allowance recorded, Unpaid principal balance	2,644	2,985
With an allowance recorded, Related allowance	87	428
Commercial and industrial
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Recorded investment	501	651
With no related allowance recorded, Unpaid principal balance	501	651
With an allowance recorded, Recorded investment	0	0
With an allowance recorded, Unpaid principal balance	0	0
With an allowance recorded, Related allowance	0	0
Commercial real estate
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Recorded investment	3,546	6,870
With no related allowance recorded, Unpaid principal balance	3,572	6,895
With an allowance recorded, Recorded investment	2,644	2,985
With an allowance recorded, Unpaid principal balance	2,644	2,985
With an allowance recorded, Related allowance	$ 87	$ 428