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IMPAIRMENT OF INVESTMENT SECURITIES (Schedule of Gross Unrealized Losses and Fair Value for Both Available For Sale and Held To Maturity Securities) (Details) $ in Thousands | Jun. 30, 2019 USD ($) N | Sep. 30, 2018 USD ($) N
--- | --- | ---
Investment [Line Items] |  |
Number of Securities | N | 24 | 44
Less Than 12 Months, Fair Value | $ 1,432 | $ 11,868
Less Than 12 Months, Unrealized Losses | (3) | (320)
12 Months Or Greater, Fair Value | 26,659 | 39,374
12 Months Or Greater, Unrealized Losses | (518) | (1,988)
Total, Fair Value | 28,091 | 51,242
Total, Unrealized Losses | $ (521) | $ (2,308)
Obligations of U.S. government agencies Mortgage backed securities - residential [Member] |  |
Investment [Line Items] |  |
Number of Securities | N | 2 | 3
Less Than 12 Months, Fair Value |  | $ 532
Less Than 12 Months, Unrealized Losses |  | (8)
12 Months Or Greater, Fair Value | 401 | 475
12 Months Or Greater, Unrealized Losses | (62) | (93)
Total, Fair Value | 401 | 1,007
Total, Unrealized Losses | $ (62) | $ (101)
Obligations of U.S. government agencies Mortgage backed securities -commercial [Member] |  |
Investment [Line Items] |  |
Number of Securities | N | 1 | 1
Less Than 12 Months, Fair Value |  |
Less Than 12 Months, Unrealized Losses |  |
12 Months Or Greater, Fair Value | 854 | 895
12 Months Or Greater, Unrealized Losses | (4) | (9)
Total, Fair Value | 854 | 895
Total, Unrealized Losses | $ (4) | $ (9)
Obligations of U.S. government-sponsored enterprises Mortgage-backed securities-residential [Member] |  |
Investment [Line Items] |  |
Number of Securities | N | 19 | 34
Less Than 12 Months, Fair Value | $ 1,432 | $ 11,336
Less Than 12 Months, Unrealized Losses | (3) | (312)
12 Months Or Greater, Fair Value | 21,210 | 30,605
12 Months Or Greater, Unrealized Losses | (146) | (1,217)
Total, Fair Value | 22,642 | 41,941
Total, Unrealized Losses | $ (149) | $ (1,529)
Obligations of U.S. government-sponsored enterprises Debt securities [Member] |  |
Investment [Line Items] |  |
Number of Securities | N | 1 | 4
Less Than 12 Months, Fair Value |  |
Less Than 12 Months, Unrealized Losses |  |
12 Months Or Greater, Fair Value | 1,494 | 4,683
12 Months Or Greater, Unrealized Losses | (6) | (281)
Total, Fair Value | 1,494 | 4,683
Total, Unrealized Losses | $ (6) | $ (281)
Corporate securities [Member] |  |
Investment [Line Items] |  |
Number of Securities | N | 1 | 1
Less Than 12 Months, Fair Value |  |
Less Than 12 Months, Unrealized Losses |  |
12 Months Or Greater, Fair Value | 2,700 | 2,612
12 Months Or Greater, Unrealized Losses | (300) | (388)
Total, Fair Value | 2,700 | 2,612
Total, Unrealized Losses | $ (300) | $ (388)
Private label mortgage-backed securities-residential [Member] |  |
Investment [Line Items] |  |
Number of Securities | N |  | 1
Less Than 12 Months, Fair Value |  |
Less Than 12 Months, Unrealized Losses |  |
12 Months Or Greater, Fair Value |  | 104
12 Months Or Greater, Unrealized Losses |  |
Total, Fair Value |  | 104
Total, Unrealized Losses |  |

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