Investment Securities (Schedule Of Realized Gross Gains And Losses On Sale From Available For Sale Portfolio) (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jun. 30, 2017		Jun. 30, 2016	Jun. 30, 2017		Jun. 30, 2016
Marketable Securities [Abstract]
Gross gains on sales of securities		$ 405		$ 162	$ 449		$ 3,999
Gross (losses) on sales of securities		0		(63)	0		(2,326)
Net gain/(loss) on sales of securities	[1]	$ 405	[2]	$ 99	$ 449	[2]	$ 1,673

[1] Cash proceeds from the sale of available-for-sale securities for the three and six months ended June 30, 2017 were $.1 million. Cash proceeds from the sale of available-for-sale securities for the three and six months ended June 30, 2016 were $.6 million and $1.5 million, respectively. Six months ended June 30, 2016 includes a $1.7 million gain from an exchange of approximately $294 million of AFS debt securities.

[2] Three and six months ended June 30, 2017 includes a $.4 million gain associated with the call of a $4.4 million held-to-maturity municipal bond.