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INVESTMENT SECURITIES (Schedule of Amortized Cost and Fair Value of Securities Available-For-Sale) (Details) - USD ($) $ in Thousands		Sep. 30, 2019	Sep. 30, 2018
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
Due after 10 years
Total debt securities		1,500
Mortgage Backed Securities, Residential	[1]	15,143
Mortgage Backed Securities, Commercial
Amortized Cost		16,643	$ 23,225
Available for Sale Securities, Fair Value
Due within 1 year
Due after 1 but within 5 years		1,500
Due after 5 but within 10 years
Due after 10 years
Total debt securities		1,500
Mortgage Backed Securities, Residential	[1]	15,203
Mortgage Backed Securities, Commercial
Fair Value		$ 16,703	$ 22,469
[1] Available-for-sale mortgage-backed securities - residential include an amortized cost of $480,000 and a fair value of $495,000 for obligations of U.S. government agencies issued by the Government National Mortgage Association and obligations of U.S. government-sponsored enterprises issued by Federal National Mortgage Association and Federal Home Loan Mortgage Corporation which had an amortized cost of $14.7 million and a fair value of $14.7 million. There were no residential mortgage backed securities issued by non-U.S. government agencies and government-sponsored enterprises.

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Amount of mortgage-backed commercial debt securities at cost, net of adjustments, which include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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