COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Depreciation expenses	$ 522	$ 505
Retired assets	1,200
Depreciated assets	359
Cost basis of assets classified as discontinued operations	160
Accumulated amortization recorded for fixed assets classified as discontinued operations	81
Amortization expense	20	20
Aggregate cost	2,373	663
Net unrealized gain (loss) on investments	(153)	55
Gross unrealized losses	196	2
Gross unrealized gains	43	57
Income taxes on investments		22
Investment in common stock of company affiliated with company board members	$ 285	$ 65