Investment Securities (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
Summary of investments securities by stated maturity
Amortized Cost, Available-for-Sale, Due in one year or less	$ 1,090
Amortized Cost, Available-for-Sale, Due after one year through five years	26,450
Amortized Cost, Available-for-Sale, Due after five years through ten years	38
Amortized Cost, Available-for-Sale, Due after ten years	33
Amortized Cost, Available-for-Sale, Total	27,611
Fair Value, Available-for-Sale, Due in one year or less	1,090
Fair Value, Available-for-Sale, Due after one year through five years	26,139
Fair Value, Available-for-Sale, Due after five years through ten years	39
Fair Value, Available-for-Sale, Due after ten years	33
Fair Value, Available-for-Sale, Total	27,301
Total, debt securities, Amortized Cost	129,347
Total, debt securities, Fair Value	130,699
Mortgage-backed Securities [Member]
Summary of investments securities by stated maturity
Total, debt securities, Amortized Cost	101,736
Total, debt securities, Fair Value	$ 103,398