Investment Securities (Amortized Cost And Approximate Fair Value Of Investment Securities By Maturity Date) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Amortized cost and approximate fair value [Abstract]
One year or less, Amortized cost, Available for Sale	$ 14,014
One year or less, Fair Value, Available for Sale	14,114
More than one year through five years, Amortized Cost, Available for Sale	229,893
More than one year through five years, Fair Value, Available for Sale	230,710
More than one year through five years, Amortized Cost, Held to Maturity	8,017
More than one year through five years, Fair Value, Held to Maturity	8,189
More than five years through ten years, Amortized Cost, Available for Sale	75,395
More than five years through ten years, Fair Value, Available for Sale	75,457
More than five years through ten years, Amortized Cost, Held to Maturity	3,347
More than five years through ten years, Fair Value, Held to Maturity	3,629
More than ten years, Amortized Cost, Available for Sale	41,307
More than ten years, Fair Value, Available for Sale	41,615
Total, Amortized Cost, Available for Sale	360,609
Total, Fair Value, Available for Sale	361,896
Held-to-maturity Securities, Total	11,364	$ 12,362
Fair Value, Held to Maturity	$ 11,818	$ 12,880