Fair Value Measurements (Schedule Of Level 2 Financial Assets And Liabilities Measured On A Recurring Basis) (Details) - Impaired Loans [Member] - Fair Value, Measurements, Nonrecurring [Member] - Level 3 [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Fair Value Measurement On Nonrecurring Basis Asset And Liabilities Value [Roll Forward]
Beginning balance	$ 6,916	$ 8,482
Loans classified as impaired during the period	3,006	0
Specific valuation allowance allocations	0	0
Fair Value	3,006	0
(Additional) reduction in specific valuation allowance allocations	(69)	0
Paydowns, payoffs, other activity	(408)	(1,530)
Ending balance	$ 9,445	$ 6,952