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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021
FHLB stock par value | $ 100 |
Revenue from contracts with customers included in service charges | $ 1,200 | $ 1,100
Revenue from contracts with customers included in other operating income | 87 | 110
Fees for other customer services |  | $ 777

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