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INVESTMENT SECURITIES (Summary of Amortized Cost and Fair Values of Securities Held to Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 30, 2018
Held to Maturity Securities, Amortized Cost
Due within 1 year
Due after 1 but within 5 years	1,499
Due after 5 but within 10 years	3,966
Due after 10 years
Total debt securities	5,465
Mortgage Backed Securities, Residential	28,199
Mortgage Backed Securities, Commercial	889
Amortized cost	34,553	$ 33,645
Held to Maturity Securities, Fair Value
Due within 1 year
Due after 1 but within 5 years	1,483
Due after 5 but within 10 years	3,474
Due after 10 years
Total debt securities	4,957
Mortgage Backed Securities, Residential	27,630
Mortgage Backed Securities, Commercial	880
Fair value	$ 33,467	$ 32,151

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