OTHER COMPREHENSIVE LOSS - Balances and Changes in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Accumulated other comprehensive loss
Balance at beginning of period	$ 242,627	$ 237,822
Other comprehensive loss	(6,274)	(187)
Balance at end of period	241,709	239,146
Accumulated Other Comprehensive Loss
Accumulated other comprehensive loss
Balance at beginning of period	(11,180)	(5,125)
Other comprehensive loss before reclassifications		(184)
Amounts reclassified from accumulated other comprehensive loss		(3)
Other comprehensive loss	(6,274)
Balance at end of period	(17,454)	(5,312)
Unrealized Gains/Losses on Securities
Accumulated other comprehensive loss
Balance at beginning of period	(10,872)	164
Other comprehensive loss before reclassifications		(184)
Amounts reclassified from accumulated other comprehensive loss		(3)
Other comprehensive loss	(6,274)
Balance at end of period	(17,146)	(23)
Defined benefit plans
Accumulated other comprehensive loss
Balance at beginning of period	(308)	(5,289)
Balance at end of period	$ (308)	$ (5,289)