INCOME TAXES - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Reconciliation of the beginning and ending amount of unrecognized tax benefits
Balance at end of period	$ 2,054	$ 328
Additions based on tax positions related to the current year	413	623
Additions for tax positions of prior years		1,143
Reductions for tax positions of prior years	(25)	(40)
Balance at beginning of period	2,442	2,054
Unrecognized tax benefits that would impact effective tax rate	910	667
Benefit from interest and penalties recorded	355	57
Accrued for interest and penalties	490	$ 135
Amount of unrecognized benefits expected to increase over the next twelve months	$ 845