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INVESTMENT SECURITIES (Summary of Amortized Cost and Fair Values of Securities Held to Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016
Held to Maturity Securities, Amortized Cost
Due within 1 year
Due after 1 but within 5 years	2,000
Due after 5 but within 10 years	4,499
Due after 10 years	961
Total debt securities	7,460
Mortgage Backed Securities, Residential	43,788
Mortgage Backed Securities, Commercial	1,000
Amortized cost	52,248	$ 52,934
Held to Maturity Securities, Fair Value
Due within 1 year
Due after 1 but within 5 years	1,997
Due after 5 but within 10 years	4,325
Due after 10 years	925
Total debt securities	7,247
Mortgage Backed Securities, Residential	43,687
Mortgage Backed Securities, Commercial	1,001
Fair value	$ 51,935	$ 53,849

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Fair value of mortgage-backed commercial debt securities categorized as held-to-maturity.

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Fair value of mortgage-backed residential debt securities categorized as held-to-maturity.

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Carrying amount of mortgage-backed residential debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments.

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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Fair value of held-to-maturity debt securities maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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