REVENUE - Contract Liability (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2019 USD ($)
Increase (Decrease) In Contract with Customer, Liability [Roll Forward]
Deferred revenue, beginning of the period	$ 511
Deferred revenue, end of the period	1,539
Revenue recognized in the period from amounts included in deferred revenue at the beginning of the period	320
Calculated under Revenue Guidance in Effect before Topic 606
Increase (Decrease) In Contract with Customer, Liability [Roll Forward]
Deferred revenue, beginning of the period	511
Deferred revenue, end of the period	610
Adjustment | ASC 606
Increase (Decrease) In Contract with Customer, Liability [Roll Forward]
Deferred revenue, end of the period	$ (929)