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COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Intangible Assets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]    
Less accumulated amortization $ (60) $ (46)
Intangible assets,net 162 129
Patent-related costs [Member]    
Finite-Lived Intangible Assets [Line Items]    
Total intangibles $ 222 $ 175