Fair Value Measurements (Schedule Of Level 2 Financial Assets And Liabilities Measured On A Recurring Basis) (Details) - Impaired Loans - Fair Value, Measurements, Nonrecurring [Member] - Level 3 - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Fair Value Measurement On Nonrecurring Basis Asset And Liabilities Value [Roll Forward]
Beginning balance	$ 9,020	$ 6,916
Loans classified as impaired during the period	2,371	2,995
Specific valuation allowance allocations	0	(86)
Fair Value	2,371	2,909
(Additional) reduction in specific valuation allowance allocations	(292)	40
Paydowns, payoffs, other activity	(903)	(609)
Ending balance	$ 10,196	$ 9,256

Fair Value Measurements (Schedule Of Level 2 Financial Assets And Liabilities Measured On A Recurring Basis) (Details) - Impaired Loans - Fair Value, Measurements, Nonrecurring [Member] - Level 3 - USD ($)
$ in Thousands

9 Months Ended

Sep. 30, 2018

Sep. 30, 2017

Fair Value Measurement On Nonrecurring Basis Asset And Liabilities Value [Roll Forward]

Beginning balance

$ 9,020

$ 6,916

Loans classified as impaired during the period

2,371

2,995

Specific valuation allowance allocations

(86)