Investment Securities (Investments Classified By Contractual Maturity Date) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Investment Securities [Abstract]
Held to Maturity, Due after five years through ten years, Amortized Cost	$ 24,564
Held to Maturity, Due after ten years, Amortized Cost	42,710
Held to Maturity, Total investment securities, Amortized Cost	67,274	66,024
Held to Maturity, Due after five years through ten years, Estimated Fair Value	24,829
Held to Maturity, Due after ten years, Estimated Fair Value	41,318
Held-to-maturity, Total investment securities, Estimated Fair Value	66,147	68,307
Available for Sale, Due in one year or less, Amortized Cost	8,450
Available for Sale, Due after one year through five years, Amortized Cost	37,794
Available for Sale, Due after five years through ten years, Amortized Cost	34,237
Available for Sale, Due after ten years, Amortized Cost	52,257
Available for Sale, No state maturity, Amortized Cost	27
Available for Sale, Total investment securities, Amortized Cost	132,765	134,035
Available for Sale, Due in one year or less, Estimated Fair Value	8,468
Available for Sale, Due after one year through five years, Estimated Fair Value	37,935
Available for Sale, Due after five years through ten years, Estimated Fair Value	33,788
Available for Sale, Due after ten years, Estimated Fair Value	51,436
Available for Sale, No stated maturity, Estimated Fair Value	16
Available for Sale, Total investment securities, Estimated Fair Value	$ 131,643	$ 135,288

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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