EMPLOYEE BENEFIT PLANS - Plan's Funded Status and Amounts Recognized (Details) - Post-retirement benefit plan - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Change in accumulated post-retirement benefit obligation:
Benefit obligation at beginning of year	$ 1,945	$ 2,204
Service cost	36	44
Interest cost	55	52
Actuarial gain	(431)	(298)
Benefits paid	(60)	(57)
Benefit obligation at end of year	1,545	1,945
Change in plan assets:
Fair value of plan assets at beginning of year	0	0
Employer contributions	60	57
Benefits paid	(60)	(57)
Fair value of plan assets at end of year	0	0
Unfunded status at end of year	$ (1,545)	$ (1,945)