Securities (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
Within one year, Amortized Cost	$ 59
One to five years, Amortized Cost	2,434
Five to ten years, Amortized Cost	18,097
Beyond ten years, Amortized Cost	58,111
Residential mortgage-backed securities issued by U.S. Government sponsored entities, Amortized Cost	163,254
Mutual funds, Amortized Cost	250
Total, Amortized Cost	242,205
Within one year, Fair Value	59
One to five years, Fair Value	2,567
Five to ten years, Fair Value	19,761
Beyond ten years, Fair Value	60,679
Residential mortgage-backed securities issued by U.S. Government sponsored entities, Fair Value	166,731
Mutual funds, Fair Value	260
Total, Fair Value	$ 250,057