Investment Securities (Schedule Of Realized Gross Gains And Losses On Sale From Available For Sale Portfolio) (Details) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Investment Securities [Abstract]
Gross gains on sales of securities		$ 0	$ 133,000	$ 284,000	$ 5,867,000
Gross (losses) on sales of securities		0	0	0	0
Net gain/(loss) on sales of securities	[1]	0	133,000	284,000	5,867,000
Venture capital investments	[2]	0	(995,000)	0	(2,995,000)
Net OTTI recorded	[3]	(345,000)	0	(345,000)	0
Total securities gain/ (loss), net		$ (345,000)	(862,000)	$ (61,000)	2,872,000
Proceeds from sales			$ 3,300,000		9,200,000
Equity securities proceeds from sales					$ 1,400,000

[1] There were no sales proceeds for the three months ended September 30, 2015; proceeds for the nine months ended September 30, 2015 were not material. Proceeds from sales for the three months ended September 30, 2014 were $ 3.3 million and for the nine months ended September 30, 2014 were $ 9.2 million, inclusive of $ 1.4 million of equity securities.

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

[3] OTTI recorded in third quarter 2015 is rel ated to equity securities.