BANK DEPOSITS, Summary of Interest Expense on Deposits (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Interest expense on deposits [Abstract]
Certificates of deposit	$ 1,406	$ 1,459	$ 2,854	$ 2,983
Money market, savings and NOW accounts (1)	1,346	631	1,917	1,244
Total interest expense on deposits	$ 2,752	$ 2,090	$ 4,771	$ 4,227

Aggregate amount of interest expense on all deposits.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.6)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

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- References

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- Definition

The aggregate interest expense incurred on the following for deposits in domestic offices: (1) transaction accounts (NOW, and telephone and preauthorized transfer accounts), (2) money market deposits and (3) savings deposits.

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- Definition

The aggregate interest expense incurred on time deposits, including certificates of deposits, in domestic offices.

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