Fair Value Measurements (Details 1)	Jun. 30, 2012	Sep. 30, 2011
Fair Value Measurements for certain financial assets measured at fair value on a non-recurring basis
Impaired loans valuation techniques	Discounted appraised value	Discounted appraised value
Foreclosed assets valuation techniques	Discounted appraised value	Discounted appraised value
Impaired loans unobservable input	Selling costs	Selling costs
Foreclosed assets unobservable input	Selling costs	Selling costs
Maximum [Member]
Fair Value Measurements for certain financial assets measured at fair value on a non-recurring basis
Range of impaired Loans	12.00%	12.00%
Range of foreclosed assets	12.00%	12.00%
Minimum [Member]
Fair Value Measurements for certain financial assets measured at fair value on a non-recurring basis
Range of impaired Loans	6.00%	6.00%
Range of foreclosed assets	6.00%	6.00%