EMPLOYEE BENEFIT PLANS - Supplemental Retirement and Deferred Compensation Plans (Details) - Supplemental Retirement and Deferred Compensation Plans - USD ($)	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Executives
Employee Benefit Plans
Accrued benefit liability	$ 273,000	$ 427,000
Provisions for benefit liability	0	0
Trustees and certain of its officers
Employee Benefit Plans
Accrued benefit liability	$ 716,000	$ 850,000

The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

Name:	us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant