Loans Receivable And Allowance For Loan Losses: Schedule of Troubled Debt Restructurings by Portfolio Segment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013 contract	Sep. 30, 2012 contract	Sep. 30, 2011 contract
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, End of Period Balance	$ 22,604	$ 23,504
One-to-four family | TDR, reduction in stated interest rate
Financing Receivable, Modifications [Line Items]
Post- Modification Outstanding Recorded Investment		1,010
One-to-four family | TDR, combination of changes
Financing Receivable, Modifications [Line Items]
Post- Modification Outstanding Recorded Investment		538
Commercial | TDR, reduction in stated interest rate
Financing Receivable, Modifications [Line Items]
Post- Modification Outstanding Recorded Investment		925
Commercial | TDR, combination of changes
Financing Receivable, Modifications [Line Items]
Post- Modification Outstanding Recorded Investment		2,790
Land | TDR, combination of changes
Financing Receivable, Modifications [Line Items]
Post- Modification Outstanding Recorded Investment		388
Land | TDR, modifying maturity date, timing or frequency of payments
Financing Receivable, Modifications [Line Items]
Post- Modification Outstanding Recorded Investment		147
Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	4,000	3,000	12,000
Pre- Modification Outstanding Recorded Investment	2,680	3,340	12,575
Post- Modification Outstanding Recorded Investment	2,680	3,340	11,549
Troubled debt restructurings, End of Period Balance	2,668	3,262	10,952
Portfolio Segment [Member] | One-to-four family
Financing Receivable, Modifications [Line Items]
Number of Contracts	2,000	1,000	4,000
Pre- Modification Outstanding Recorded Investment	353	373	1,543
Post- Modification Outstanding Recorded Investment	353	373	1,543
Troubled debt restructurings, End of Period Balance	350	372	1,543
Portfolio Segment [Member] | Commercial
Financing Receivable, Modifications [Line Items]
Number of Contracts	2,000	1,000	2,000
Pre- Modification Outstanding Recorded Investment	2,327	2,718	3,394
Post- Modification Outstanding Recorded Investment	2,327	2,718	3,717
Troubled debt restructurings, End of Period Balance	2,318	2,657	3,145
Portfolio Segment [Member] | Construction - commercial
Financing Receivable, Modifications [Line Items]
Number of Contracts			2,000
Pre- Modification Outstanding Recorded Investment			6,800
Post- Modification Outstanding Recorded Investment			5,451
Troubled debt restructurings, End of Period Balance			5,435
Portfolio Segment [Member] | Land
Financing Receivable, Modifications [Line Items]
Number of Contracts		1,000	2,000
Pre- Modification Outstanding Recorded Investment		249	535
Post- Modification Outstanding Recorded Investment		249	535
Troubled debt restructurings, End of Period Balance		233	526
Portfolio Segment [Member] | Home equity
Financing Receivable, Modifications [Line Items]
Number of Contracts			2,000
Pre- Modification Outstanding Recorded Investment			303
Post- Modification Outstanding Recorded Investment			303
Troubled debt restructurings, End of Period Balance			$ 303