Securities (Contractual Maturity) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Amortized Cost
Due in one year or less	$ 159
Due in one year through five years	10,633
Due in five through ten years	13,621
Due in over ten years	167,645
Amortized cost	192,058
Estimated Fair Value
Due in one year or less	161
Due in one year through five years	10,633
Due in five through ten years	13,759
Due in over ten years	171,351
Estimated fair value	$ 195,904	$ 170,386