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	3 Months Ended
	Mar. 31, 2017	Mar. 31, 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	3,015	0
Specific valuation allowance allocations	0	0
Fair Value	3,015	0
(Additional) reduction in specific valuation allowance allocations	(29)	0
Paydowns, payoffs, other activity	(301)	(1,247)
Ending balance	$ 9,601	$ 7,235