SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Accounts Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Allowance for Doubtful Accounts [Roll Forward]
Balance beginning of year	$ 63	$ 34	$ 23
Charges to expense	20	34	22
Write-offs /payments	(5)	(5)	(11)
Balance end of year	$ 78	$ 63	$ 34