OTHER COMPREHENSIVE INCOME (LOSS) - Balances and Changes in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Accumulated other comprehensive loss
Balance at beginning of period	$ 241,709	$ 239,146	$ 242,627	$ 237,822
Other comprehensive loss	1,699	(1,551)	(4,575)	(1,738)
Balance at end of period	249,730	244,010	249,730	244,010
Accumulated Other Comprehensive Loss
Accumulated other comprehensive loss
Balance at beginning of period	(17,454)	(5,312)	(11,180)	(5,125)
Other comprehensive gain (loss) before reclassifications	1,699	(1,551)	(4,575)	(1,735)
Amounts reclassified from accumulated other comprehensive loss				(3)
Balance at end of period	(15,755)	(6,863)	(15,755)	(6,863)
Unrealized Gains/Losses on Securities
Accumulated other comprehensive loss
Balance at beginning of period	(17,146)	(23)	(10,872)	164
Other comprehensive gain (loss) before reclassifications	1,699	(1,551)	(4,575)	(1,735)
Amounts reclassified from accumulated other comprehensive loss				(3)
Balance at end of period	(15,447)	(1,574)	(15,447)	(1,574)
Defined benefit plans
Accumulated other comprehensive loss
Balance at beginning of period	(308)	(5,289)	(308)	(5,289)
Balance at end of period	$ (308)	$ (5,289)	$ (308)	$ (5,289)