OTHER COMPREHENSIVE LOSS - Reclassifications (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
OTHER COMPREHENSIVE INCOME
Settlement recognition	$ 334
Reclassification, net of tax	(10,279)	$ (1,077)
Amount Reclassified from Accumulated Other Comprehensive Loss
OTHER COMPREHENSIVE INCOME
Reclassification, net of tax	(218)	(1,255)
Amount Reclassified from Accumulated Other Comprehensive Loss | Unrealized gains/losses on securities
OTHER COMPREHENSIVE INCOME
Reclassification, before tax	38
Reclassification, tax (expense) benefit	(9)
Reclassification, net of tax	29
Amount Reclassified from Accumulated Other Comprehensive Loss | Defined benefit plans
OTHER COMPREHENSIVE INCOME
Settlement recognition	(334)
Reclassification, before tax		(1,698)
Reclassification, tax (expense) benefit	87	443
Reclassification, net of tax	$ (247)	$ (1,255)