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COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Intangible Assets) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]    
Total intangibles $ 198 $ 175
Less accumulated amortization (53) (46)
Intangible assets,net 145 129
Patent-related costs [Member]    
Finite-Lived Intangible Assets [Line Items]    
Total intangibles $ 198 $ 175