FAIR VALUE MEASUREMENTS (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2012
Level 1 [Member]
Debt securities [Abstract]
Securities available for sale	$ 0	$ 0
Level 2 [Member]
Debt securities [Abstract]
Securities available for sale	910,998	1,116,692
Level 3 [Member]
Debt securities [Abstract]
Securities available for sale	0	0
Recurring [Member]
Debt securities [Abstract]
Trust preferred and corporate securities	48,745	65,497
Asset backed securities		41,324
Agency securities		39,467
Small Business Administration securities		19,914
Obligations of states and political subdivisions	1,722	13,153
Non-bank qualified obligations of states and political subdivisions	241,250	255,895
Mortgage-backed securities	619,281	681,442
Securities available for sale	910,998	1,116,692
Recurring [Member] \| Level 1 [Member]
Debt securities [Abstract]
Trust preferred and corporate securities	0	0
Asset backed securities		0
Agency securities		0
Small Business Administration securities		0
Obligations of states and political subdivisions	0	0
Non-bank qualified obligations of states and political subdivisions	0	0
Mortgage-backed securities	0	0
Securities available for sale	0	0
Recurring [Member] \| Level 2 [Member]
Debt securities [Abstract]
Trust preferred and corporate securities	48,745	65,497
Asset backed securities		41,324
Agency securities		39,467
Small Business Administration securities		19,914
Obligations of states and political subdivisions	1,722	13,153
Non-bank qualified obligations of states and political subdivisions	241,250	255,895
Mortgage-backed securities	619,281	681,442
Securities available for sale	910,998	1,116,692
Recurring [Member] \| Level 3 [Member]
Debt securities [Abstract]
Trust preferred and corporate securities	0	0
Asset backed securities		0
Agency securities		0
Small Business Administration securities		0
Obligations of states and political subdivisions	0	0
Non-bank qualified obligations of states and political subdivisions	0	0
Mortgage-backed securities	0	0
Securities available for sale	0	0
Nonrecurring [Member]
Fair value of assets measured on non-recurring basis [Abstract]
One to four family residential mortgage loans	257	336
Commercial and multi-family real estate loans	1,824	8,469
Consumer loans		1
Commercial operating loans		16
Total Impaired Loans	2,081	8,822
Foreclosed Assets, net	45	838
Total	2,126	9,660
Nonrecurring [Member] \| Level 1 [Member]
Fair value of assets measured on non-recurring basis [Abstract]
One to four family residential mortgage loans	0	0
Commercial and multi-family real estate loans	0	0
Consumer loans		0
Commercial operating loans		0
Total Impaired Loans	0	0
Foreclosed Assets, net	0	0
Total	0	0
Nonrecurring [Member] \| Level 2 [Member]
Fair value of assets measured on non-recurring basis [Abstract]
One to four family residential mortgage loans	0	0
Commercial and multi-family real estate loans	0	0
Consumer loans		0
Commercial operating loans		0
Total Impaired Loans	0	0
Foreclosed Assets, net	0	0
Total	0	0
Nonrecurring [Member] \| Level 3 [Member]
Fair value of assets measured on non-recurring basis [Abstract]
One to four family residential mortgage loans	257	336
Commercial and multi-family real estate loans	1,824	8,469
Consumer loans		1
Commercial operating loans		16
Total Impaired Loans	2,081	8,822
Foreclosed Assets, net	45	838
Total	$ 2,126	$ 9,660

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 12

-Subparagraph b

-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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Available-for-Sale Securities

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

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 15

-IssueDate 2006-05-01

-Chapter 7

-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.

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-Publisher FASB

-Name Accounting Standards Codification

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