COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Schedule of Equipment and leasehold improvements) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Property, Plant and Equipment [Line Items]
Total	$ 9,905	$ 9,483
Less: accumulated depreciation and amortization	(7,219)	(6,757)
Property, plant and equipment, net	2,686	2,726
Office Furnishings and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total	2,143	2,067
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total	5,382	5,119
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Total	21	21
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Total	$ 2,359	$ 2,276