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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

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- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554 + Details
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