ACCUMULATED OTHER COMPREHENSIVE GAIN (LOSS) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 347	$ (1,685)	$ 15	$ (188)
Other comprehensive (loss) income before reclassifications	(5,496)	1,295	(5,139)	(204)
Amounts reclassified from accumulated other comprehensive loss			(25)	2
Net current-period other comprehensive (loss) income	(5,496)	1,295	(5,164)	(202)
Ending Balance	(5,149)	(390)	(5,149)	(390)
Unrealized Gains and Losses on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	411	(1,486)	85	(10)
Other comprehensive (loss) income before reclassifications	(5,499)	1,168	(5,148)	(310)
Amounts reclassified from accumulated other comprehensive loss			(25)	2
Net current-period other comprehensive (loss) income	(5,499)	1,168	(5,173)	(308)
Ending Balance	(5,088)	(318)	(5,088)	(318)
Unrealized Gains and Losses on Held-to-Maturity Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(64)	(199)	(70)	(178)
Other comprehensive (loss) income before reclassifications	3	127	9	106
Amounts reclassified from accumulated other comprehensive loss
Net current-period other comprehensive (loss) income	3	127	9	106
Ending Balance	$ (61)	$ (72)	$ (61)	$ (72)