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INVESTMENT SECURITIES (Summary of Amortized Cost and Fair Values of Securities Held to Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Available for Sale Securities, Amortized Cost
Mortgage-backed securities, Residential	$ 12,408
Mortgage-backed securities, Commercial
Amortized Cost	12,408	$ 13,101
Available for Sale Securities, Fair Value
Mortgage Backed Securities, Residential	12,181
Mortgage Backed Securities, Commercial
Fair Value	12,181	12,927
Held to Maturity Securities, Amortized Cost
Due within 1 year
Due after 1 but within 5 years	13,498
Due after 5 but within 10 years	6,146
Due after 10 years	515
Total debt securities	20,159
Mortgage Backed Securities, Residential	45,624
Mortgage Backed Securities, Commercial	684
Amortized cost	66,467	57,660
Held to Maturity Securities, Fair Value
Due within 1 year
Due after 1 but within 5 years	13,091
Due after 5 but within 10 years	6,035
Due after 10 years	508
Total debt securities	19,634
Mortgage Backed Securities, Residential	45,353
Mortgage Backed Securities, Commercial	684
Fair value	$ 65,671	$ 57,282

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