Investment Securities (Investments Classified By Contractual Maturity Date) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Investment Securities [Abstract]
Held to Maturity, Due after five years through ten years, Amortized Cost	$ 24,880
Held to Maturity, Due after ten years, Amortized Cost	41,151
Held to Maturity, Total investment securities, Amortized Cost	66,031	66,024
Held to Maturity, Due after five years through ten years, Estimated Fair Value	25,057
Held to Maturity, Due after ten years, Estimated Fair Value	39,779
Held-to-maturity, Total investment securities, Estimated Fair Value	64,836	68,307
Available for Sale, Due in one year or less, Amortized Cost	7,369
Available for Sale, Due after one year through five years, Amortized Cost	29,508
Available for Sale, Due after five years through ten years, Amortized Cost	44,813
Available for Sale, Due after ten years, Amortized Cost	55,593
Available for Sale, No state maturity, Amortized Cost	27
Available for Sale, Total investment securities, Amortized Cost	137,310	134,035
Available for Sale, Due in one year or less, Estimated Fair Value	7,372
Available for Sale, Due after one year through five years, Estimated Fair Value	29,432
Available for Sale, Due after five years through ten years, Estimated Fair Value	44,465
Available for Sale, Due after ten years, Estimated Fair Value	55,053
Available for Sale, No stated maturity, Estimated Fair Value	16
Available for Sale, Total investment securities, Estimated Fair Value	$ 136,338	$ 135,288