REVENUE - Contract Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Deferred revenue, beginning of the period	$ 1,681	$ 511
Deferred revenue, end of the period	1,698	1,681
Revenue recognized in the period from amounts included in deferred revenue at the beginning of the period	$ 777	306
Adjustment | ASC 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Deferred revenue, beginning of the period		$ 1,303