FAIR VALUE DISCLOSURES (Schedule of the Carrying Amount, Fair Value, and Placement in the Fair Value Hierarchy of Financial Instruments) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Financial instruments - assets
Investment securities held to maturity	$ 34,342	$ 51,368
Fair Value, Inputs, Level 1 [Member]
Financial instruments - assets
Investment securities held to maturity
Loans
Financial instruments - liabilities
Certificates of deposit including retirement certificates
Borrowings
Fair Value, Inputs, Level 2 [Member]
Financial instruments - assets
Investment securities held to maturity	32,905	51,241
Loans
Financial instruments - liabilities
Certificates of deposit including retirement certificates	123,628	128,750
Borrowings	48,230	31,865
Fair Value, Inputs, Level 3 [Member]
Financial instruments - assets
Investment securities held to maturity
Loans	495,929	473,538
Financial instruments - liabilities
Certificates of deposit including retirement certificates
Borrowings
Carrying Value [Member]
Financial instruments - assets
Investment securities held to maturity	34,342	51,368
Loans	498,818	470,693
Financial instruments - liabilities
Certificates of deposit including retirement certificates	123,206	128,028
Borrowings	48,764	31,905
Fair Value [Member]
Financial instruments - assets
Investment securities held to maturity	32,905	51,241
Loans	495,929	473,538
Financial instruments - liabilities
Certificates of deposit including retirement certificates	123,628	128,750
Borrowings	$ 48,230	$ 31,865

Amount of interest-bearing domestic certificate of deposit liabilities.

No definition available.

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

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- References

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- Definition

Amount, before other-than-temporary impairment (OTTI) accretion, of investment in debt securities measured at amortized cost (held-to-maturity).

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2196772

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