NET LOANS RECEIVABLE - Others (Details) - USD ($) $ in Millions	Dec. 31, 2022	Jun. 30, 2022
Residential mortgage, home equity and commercial loans
NET LOANS RECEIVABLE
Pledged loans receivable as collateral for FHLBNY borrowings and stand-by letters of credit	$ 404.9	$ 377.1

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_LoansAndLeasesReceivableDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration