STOCK BASED COMPENSATION - Stock Option Activity (Details) - $ / shares shares in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Options Outstanding
Options outstanding at beginning of period (in shares)	920	865	1,290
Granted (in shares)	578	137	38
Exercised (in shares)			(95)
Forfeited or canceled (in shares)	(218)	(82)	(368)
Options outstanding at end of period (in shares)	1,280	920	865
Options exercisable (in shares)	591
Weighted Average Exercise Price
Options outstanding at beginning of period (in dollars per share)	$ 4.57	$ 4.53	$ 4.69
Granted (in dollars per share)	3.73	4.79	4.55
Exercised (in dollars per share)			3.60
Forfeited or canceled (in dollars per share)	4.16	4.50	5.32
Options outstanding at end of period (in dollars per share)	4.26	$ 4.57	$ 4.53
Options exercisable (in dollars per share)	$ 4.67