COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Schedule of Equipment and leasehold improvements) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Total	$ 9,483	$ 8,479
Less: Accumulated depreciation and amortization	(6,757)	(6,724)
Property, plant and equipment, net	2,726	1,755
Office Furnishings and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total	2,067	1,821
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total	5,119	4,488
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Total	21
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Total	$ 2,276	$ 2,170