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	6 Months Ended
	Jun. 30, 2018	Jun. 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	2,432	3,006
Specific valuation allowance allocations	0	0
Fair Value	2,432	3,006
(Additional) reduction in specific valuation allowance allocations	(326)	(69)
Paydowns, payoffs, other activity	(749)	(408)
Ending balance	$ 10,377	$ 9,445