STOCK BASED COMPENSATION - Stock Option Activity (Details) - $ / shares shares in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Options Outstanding
Options outstanding at beginning of period (in shares)	865	1,290	1,375
Granted (in shares)	137	38	45
Exercised (in shares)		(95)	(112)
Forfeited or canceled (in shares)	(82)	(368)	(18)
Options outstanding at end of period (in shares)	920	865	1,290
Options exercisable (in shares)	634
Weighted Average Exercise Price
Options outstanding at beginning of period (in dollars per share)	$ 4.53	$ 4.69	$ 4.49
Granted (in dollars per share)	4.79	4.55	6.62
Exercised (in dollars per share)		3.60	2.77
Forfeited or canceled (in dollars per share)	4.50	5.32	5.99
Options outstanding at end of period (in dollars per share)	4.57	$ 4.53	$ 4.69
Options exercisable (in dollars per share)	$ 4.46