OTHER COMPREHENSIVE INCOME (LOSS) - Reclassifications (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
OTHER COMPREHENSIVE INCOME
Net loss on securities available for sale transactions	$ (5,645)
Salaries and employee benefits	(29,225)	$ (27,421)
Income tax (expense) benefit	(4,149)	(5,907)
Reclassification, net of tax	(15,260)	(21,948)
Amount Reclassified from Accumulated Other Comprehensive Loss
OTHER COMPREHENSIVE INCOME
Reclassification, net of tax	4,148	(12)
Amount Reclassified from Accumulated Other Comprehensive Loss | Unrealized Gains/Losses on Securities
OTHER COMPREHENSIVE INCOME
Net loss on securities available for sale transactions	5,645
Income tax (expense) benefit	(1,475)
Reclassification, net of tax	4,170
Amount Reclassified from Accumulated Other Comprehensive Loss | Defined benefit plans
OTHER COMPREHENSIVE INCOME
Income tax (expense) benefit	8	4
Reclassification, net of tax	(22)	(12)
Amount Reclassified from Accumulated Other Comprehensive Loss | Net actuarial gain
OTHER COMPREHENSIVE INCOME
Salaries and employee benefits	$ (30)	$ (16)