Investment Securities (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Investment Securities
Due in one year, Amortized Cost	$ 3,003
Due after one year through five years, Amortized Cost	10,444
Due after five years through ten years, Amortized Cost	57,159
Due after ten years, Amortized Cost	122,185
Totals, Amortized Cost	192,791
Due in one year, Estimated Fair Value	3,122
Due after one year through five years, Estimated Fair Value	11,016
Due after five years through ten years, Estimated Fair Value	59,161
Due after ten years, Estimated Fair Value	129,550
Totals, Estimated Fair Value	$ 202,849