Condensed Financial Information - Parent Company Only: Condensed Statements of Cash Flows, Parent Company (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities
Net income	$ 4,757	$ 4,590	$ 1,089
Adjustments to reconcile net income to net cash provided by operating activities:
ESOP shares earned	(271)	(199)	(203)
MRDP compensation expense	39	105	171
Stock option compensation expense	49	15	7
Net cash provided by operating activities	11,572	15,388	10,699
Cash flows from investing activities
Net cash provided by investing activities	(17,534)	(23,986)	(4,238)
Cash flows from financing activities
Repurchase of preferred stock	(4,321)	0	0
Payment of dividends	(1,368)	(2,080)	0
ESOP tax effect	6	(65)	(61)
MRDP compensation tax effect	(8)	(28)	(37)
Net cash used in financing activities	3,790	(6,799)	(6,182)
Net increase (decrease) in cash and cash equivalents	(2,172)	(15,397)	279
Cash and cash equivalents:
Beginning of year	96,668	112,065	111,786
End of year	94,496	96,668	112,065
Parent Company
Cash flows from operating activities
Net income	4,757	4,590	1,089
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed income of Bank	(4,876)	(4,781)	(1,253)
ESOP shares earned	265	264	264
MRDP compensation expense	39	105	171
Stock option compensation expense	49	15	7
Other, net	(39)	406	(160)
Net cash provided by operating activities	195	599	118
Cash flows from investing activities
Investment in Bank	2,956	(243)	(288)
Principal repayments on loan receivable from Bank	353	322	298
Net cash provided by investing activities	3,309	79	10
Cash flows from financing activities
Repurchase of preferred stock	(4,321)	0	0
Payment of dividends	(1,368)	(2,080)	0
ESOP tax effect	6	(65)	(61)
MRDP compensation tax effect	(8)	(28)	(37)
Net cash used in financing activities	(5,691)	(2,173)	(98)
Net increase (decrease) in cash and cash equivalents	(2,187)	(1,495)	30
Cash and cash equivalents:
Beginning of year	2,692	4,187	4,157
End of year	$ 505	$ 2,692	$ 4,187