NET LOANS RECEIVABLE - Troubled debt restructurings (Details)	3 Months Ended	12 Months Ended
Sep. 30, 2022 USD ($) loan	Sep. 30, 2021 USD ($) loan	Jun. 30, 2022 loan	Jun. 30, 2021 loan
NET LOANS RECEIVABLE
Loans modified as troubled debt restructurings \| $	$ 0	$ 0
Number of loans modified as a troubled debt restructuring, subsequently defaulted \| loan	0	0	0	0

Amount of financing receivable modified as troubled debt restructuring.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

Name:	us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant