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INVESTMENT SECURITIES (Summary of Maturities of Debt Securities and Mortgage-backed Securities Available For Sale) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Sep. 30, 2020
--- | --- | ---
Available for Sale Securities, Amortized Cost |  |
Due within 1 year |  |
Due after 1 but within 5 years |  |
Due after 5 but within 10 years |  |
Due after 10 years |  |
Total debt securities |  |
Mortgage Backed Securities, Residential | 14,509 |
Mortgage Backed Securities, Commercial |  |
Amortized Cost | 14,509 | $ 14,442
Available for Sale Securities, Fair Value |  |
Due within 1 year |  |
Due after 1 but within 5 years |  |
Due after 5 but within 10 years |  |
Due after 10 years |  |
Total debt securities |  |
Mortgage Backed Securities, Residential | 14,259 |
Mortgage Backed Securities, Commercial |  |
Fair Value | $ 14,259 | $ 14,561

X
- Definition 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. + References No definition available. + Details
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- Definition Amount of mortgage-backed residential 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. + References No definition available. + Details
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