INVESTMENT SECURITIES (Summary of Maturities of Debt Securities and Mortgage-backed Securities Available For Sale) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Available for Sale Securities, Amortized Cost
Due within 1 year
Due after 1 but within 5 years	1,500
Due after 5 but within 10 years	1,000
Due after 10 years
Total debt securities	2,500
Mortgage Backed Securities, Residential	21,250
Mortgage Backed Securities, Commercial
Amortized Cost	23,750	$ 11,982
Available for Sale Securities, Fair Value
Due within 1 year
Due after 1 but within 5 years	1,411
Due after 5 but within 10 years	960
Due after 10 years
Total debt securities	2,371
Mortgage Backed Securities, Residential	20,740
Mortgage Backed Securities, Commercial
Fair Value	$ 23,111	$ 11,815