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FAIR VALUE DISCLOSURES (Schedule of the Carrying Amount, Fair Value, and Placement in the Fair Value Hierarchy of Financial Instruments) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Sep. 30, 2016
--- | --- | ---
Financial instruments - assets |  |
Investment securities held to maturity | $ 52,035 | $ 52,934
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 | 51,745 | 53,849
Loans |  |
Financial instruments - liabilities |  |
Certificates of deposit including retirement certificates | 131,557 | 135,162
Borrowings | 34,010 | 36,473
Fair Value, Inputs, Level 3 [Member] |  |
Financial instruments - assets |  |
Investment securities held to maturity |  |
Loans | 467,340 | 462,868
Financial instruments - liabilities |  |
Certificates of deposit including retirement certificates |  |
Borrowings |  |
Carrying Value [Member] |  |
Financial instruments - assets |  |
Investment securities held to maturity | 52,035 | 52,934
Loans | 461,697 | 455,031
Financial instruments - liabilities |  |
Certificates of deposit including retirement certificates | 130,565 | 133,979
Borrowings | 34,040 | 36,040
Fair Value [Member] |  |
Financial instruments - assets |  |
Investment securities held to maturity | 51,745 | 53,849
Loans | 467,340 | 462,868
Financial instruments - liabilities |  |
Certificates of deposit including retirement certificates | 131,557 | 135,162
Borrowings | $ 34,010 | $ 36,473

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