COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Intangible Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Total intangibles	$ 175	$ 194
Less accumulated amortization	(42)	(54)
Intangible assets,net	133	140
Covenant not to compete [Member]
Finite-Lived Intangible Assets [Line Items]
Total intangibles		30
Patent-related costs [Member]
Finite-Lived Intangible Assets [Line Items]
Total intangibles	$ 175	$ 164