FAIR VALUES OF FINANCIAL INSTRUMENTS, BALANCE SHEET GROUPING (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Financial assets [Abstract]
Securities available for sale	$ 1,140,216	$ 881,193
Securities held to maturity	279,312	270,518
Level 1 [Member]
Financial assets [Abstract]
Cash and cash equivalents	29,832	40,063
Securities available for sale	825	0
Securities held to maturity	0	0
Loans receivable [Abstract]
One to four family residential mortgage loans	0	0
Commercial and multi-family real estate loans	0	0
Agricultural real estate loans	0	0
Consumer loans	0	0
Commercial operating loans	0	0
Agricultural operating loans	0	0
Total loans receivable	0	0
FHLB stock	0	0
Accrued interest receivable	11,222	8,582
Financial liabilities [Abstract]
Noninterest bearing demand deposits	1,126,715	1,086,258
Interest bearing demand deposits, savings, and money markets	105,273	97,426
Certificates of deposit	0	0
Total deposits	1,231,988	1,183,684
Advances from FHLB	0	0
Federal funds purchased	0	0
Securities sold under agreements to repurchase	0	0
Subordinated debentures	0	0
Accrued interest payable	318	291
Level 2 [Member]
Financial assets [Abstract]
Cash and cash equivalents	0	0
Securities available for sale	1,139,391	881,193
Securities held to maturity	279,312	270,518
Loans receivable [Abstract]
One to four family residential mortgage loans	0	0
Commercial and multi-family real estate loans	0	0
Agricultural real estate loans	0	0
Consumer loans	0	0
Commercial operating loans	0	0
Agricultural operating loans	0	0
Total loans receivable	0	0
FHLB stock	21,245	9,994
Accrued interest receivable	0	0
Financial liabilities [Abstract]
Noninterest bearing demand deposits	0	0
Interest bearing demand deposits, savings, and money markets	0	0
Certificates of deposit	134,746	132,187
Total deposits	134,746	132,187
Advances from FHLB	8,789	9,089
Federal funds purchased	470,000	190,001
Securities sold under agreements to repurchase	10,414	9,148
Subordinated debentures	10,415	10,312
Accrued interest payable	0	0
Level 3 [Member]
Financial assets [Abstract]
Cash and cash equivalents	0	0
Securities available for sale	0	0
Securities held to maturity	0	0
Loans receivable [Abstract]
One to four family residential mortgage loans	111,254	72,628
Commercial and multi-family real estate loans	234,845	200,778
Agricultural real estate loans	58,651	30,920
Consumer loans	29,580	30,588
Commercial operating loans	25,660	15,718
Agricultural operating loans	44,398	35,175
Total loans receivable	504,388	385,807
FHLB stock	0	0
Accrued interest receivable	0	0
Financial liabilities [Abstract]
Noninterest bearing demand deposits	0	0
Interest bearing demand deposits, savings, and money markets	0	0
Certificates of deposit	0	0
Total deposits	0	0
Advances from FHLB	0	0
Federal funds purchased	0	0
Securities sold under agreements to repurchase	0	0
Subordinated debentures	0	0
Accrued interest payable	0	0
Carrying Amount [Member]
Financial assets [Abstract]
Cash and cash equivalents	29,832	40,063
Securities available for sale	1,140,216	881,193
Securities held to maturity	282,933	288,026
Loans receivable [Abstract]
One to four family residential mortgage loans	116,395	82,287
Commercial and multi-family real estate loans	224,302	192,786
Agricultural real estate loans	56,071	29,552
Consumer loans	29,329	30,314
Commercial operating loans	30,846	16,264
Agricultural operating loans	42,258	33,750
Total loans receivable	499,201	384,953
FHLB stock	21,245	9,994
Accrued interest receivable	11,222	8,582
Financial liabilities [Abstract]
Noninterest bearing demand deposits	1,126,715	1,086,258
Interest bearing demand deposits, savings, and money markets	105,273	97,426
Certificates of deposit	134,553	131,599
Total deposits	1,366,541	1,315,283
Advances from FHLB	7,000	7,000
Federal funds purchased	470,000	190,000
Securities sold under agreements to repurchase	10,411	9,146
Subordinated debentures	10,310	10,310
Accrued interest payable	318	291
Estimated Fair Value [Member]
Financial assets [Abstract]
Cash and cash equivalents	29,832	40,063
Securities available for sale	1,140,216	881,193
Securities held to maturity	279,312	270,518
Loans receivable [Abstract]
One to four family residential mortgage loans	111,254	72,628
Commercial and multi-family real estate loans	234,845	200,778
Agricultural real estate loans	58,651	30,920
Consumer loans	29,580	30,588
Commercial operating loans	25,660	15,718
Agricultural operating loans	44,398	35,175
Total loans receivable	504,388	385,807
FHLB stock	21,245	9,994
Accrued interest receivable	11,222	8,582
Financial liabilities [Abstract]
Noninterest bearing demand deposits	1,126,715	1,086,258
Interest bearing demand deposits, savings, and money markets	105,273	97,426
Certificates of deposit	134,746	132,187
Total deposits	1,366,734	1,315,871
Advances from FHLB	8,789	9,089
Federal funds purchased	470,000	190,000
Securities sold under agreements to repurchase	10,414	9,146
Subordinated debentures	10,415	10,312
Accrued interest payable	$ 318	$ 291

The fair value disclosure of accrued interest payable as of the balance sheet date.

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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 accrued interest receivable as of the balance sheet date.

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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 agricultural loans held as presented on the statement of financial position which are due the Company as of the balance sheet date.

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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 agricultural operating loans presented on the statement of financial position which are due the Company as of the balance sheet date.

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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. This item represents certificate of deposit as of the balance sheet date.

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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 commercial operating loans presented on the statement of financial position which are due the Company as of the balance sheet date.

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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 consumer loans held as presented on the statement of financial position which are due the Company as of the balance sheet date.

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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. This item represents interest bearing demand deposits, savings, and money market as of the balance sheet date.

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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 loan receivable for commercial and multi-family mortgages on real estate as presented on the balance sheet date.

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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 loan receivable for residential mortgages on one-to-four family real estate as presented on the balance sheet date.

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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. This item represents the aggregate of all noninterest bearing demand deposits as of the balance sheet date.

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Fair value of Federal Home Loan Bank (FHLBank) advances carried under the fair value option.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

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-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a),(b)

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Fair value portion of short term borrowing where a bank borrows, at the federal funds rate, from another bank.

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-Subparagraph (SX 210.9-03.13(3)(a))

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Fair value of investments in debt securities classified as held-to-maturity.

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Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Fair value portion of securities that an entity sells and agrees to repurchase at a specified date for a specified price.

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