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Loans Receivable (excluding Covered Loans) (Loans on Non-accrual Status) (Details) (USD $)	Jun. 30, 2012	Sep. 30, 2011	Jun. 30, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	$ 171,033,000	$ 210,465,000	$ 232,752,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	100.00%	100.00%
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	129,295,000	126,624,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	75.60%	60.30%
Construction, Speculative [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	12,424,000	15,383,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	7.30%	7.30%
Construction, Custom [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	539,000	635,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	0.30%	0.30%
Land, Acquisition and Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	12,514,000	37,339,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	7.30%	17.70%
Land, Consumer Lot Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	5,844,000	8,843,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	3.40%	4.20%
Multi Family Housing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	3,405,000	7,664,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	2.00%	3.60%
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	6,285,000	11,380,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	3.70%	5.40%
Commercial and Industrial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	0	1,679,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	0.00%	0.80%
Home Equity Line of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	388,000	481,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	0.20%	0.20%
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans by portfolio segment	$ 339,000	$ 437,000
Ratio of nonaccrual loan by portfolio segment to total loans on nonaccrual status	0.20%	0.20%

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- Definition

Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph g

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5111-111524

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- Definition

Loans and Leases Receivable, Ratio of Type of Nonperforming Loans to All Nonperforming Loans

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