VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 10	$ 0
Charged to Costs and Expenses	0	10
Deductions	0	0
Balance at End of Year	10	10
Warranty Accrual [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	112	164
Charged to Costs and Expenses	137	175
Deductions	(158)	(227)
Balance at End of Year	$ 91	$ 112