Fair Value Measurements (Details 5) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Assets
Fair Value at September 30, 2012	$ 5,756	$ 5,343
Amount Due Upon Maturity	7,494
Difference	1,738
Loan securities carried at fair value [Member]
Assets
Fair Value at September 30, 2012	5,756
Amount Due Upon Maturity	7,494
Difference	$ 1,738