Investment Securities (Schedule Of Realized Gross Gains And Losses On Sale From Available For Sale Portfolio) (Details) - USD ($)		3 Months Ended			6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014		Jun. 30, 2015	Jun. 30, 2014
Investment Securities [Abstract]
Gross gains on sales of securities		$ 8,000	$ 77,000		$ 284,000	$ 5,734,000
Gross (losses) on sales of securities		0	0		0	0
Net gain/(loss) on sales of securities	[1]	8,000	77,000		284,000	5,734,000
Venture capital investments		0	(2,000,000)	[2]	0	(2,000,000)	[2]
Total securities gain/ (loss), net		$ 8,000	$ (1,923,000)		284,000	3,734,000
Proceeds from sales					$ 300,000	5,700,000
Equity securities proceeds from sales						$ 1,400,000

[1] Proceeds from sales for the three months ended June 30, 2015 and 2014 were not material. Proceeds for the six months ended June 30, 2015 were $ .3 million. Proceeds for the six months ended June 30, 2014 were $ 5.7 million, inclusive of $ 1.4 million of equity securities .

[2] Includes write-offs and/or unrealized fair value adjustments related to venture capital investments.