Loans Receivable And Allowance For Credit Losses (Allowance For Credit Losses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	$ 8,822	$ 11,100	$ 15,465
Charge-offs	(1,142)	(1,657)	(6,435)
Recoveries	138	446	30
Provision for credit losses	1,409	(1,067)	2,040
Ending Balance	9,227	8,822	11,100
One-To Four-Family Loans - Originated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	5,771	6,074	4,915
Charge-offs	(380)	(637)	(892)
Recoveries	1	14	16
Provision for credit losses	871	320	2,035
Ending Balance	6,263	5,771	6,074
One-To Four-Family Loans - Purchased [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	2,486	4,453	9,901
Charge-offs	(653)	(761)	(5,186)
Recoveries	64	398	8
Provision for credit losses	426	(1,604)	(270)
Ending Balance	2,323	2,486	4,453
One-To Four-Family Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	8,257	10,527	14,816
Charge-offs	(1,033)	(1,398)	(6,078)
Recoveries	65	412	24
Provision for credit losses	1,297	(1,284)	1,765
Ending Balance	8,586	8,257	10,527
Multi-Family And Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	185	219	254
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for credit losses	215	(34)	(35)
Ending Balance	400	185	219
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	380	354	395
Charge-offs	(109)	(259)	(357)
Recoveries	73	34	6
Provision for credit losses	(103)	251	310
Ending Balance	$ 241	$ 380	$ 354