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INVESTMENT SECURITIES (Summary of Amortized Cost and Fair Values of Securities Held to Maturity) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Sep. 30, 2020
Held to Maturity Securities, Amortized Cost
Due within 1 year
Due after 1 but within 5 years	9,498
Due after 5 but within 10 years	6,528
Due after 10 years	516
Total debt securities	16,542
Mortgage Backed Securities, Residential	31,035
Mortgage Backed Securities, Commercial	721
Amortized cost	48,298	$ 30,443
Held to Maturity Securities, Fair Value
Due within 1 year
Due after 1 but within 5 years	9,232
Due after 5 but within 10 years	6,455
Due after 10 years	513
Total debt securities	16,200
Mortgage Backed Securities, Residential	31,342
Mortgage Backed Securities, Commercial	721
Fair value	$ 48,263	$ 30,899

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