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COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Intangible Assets) (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]    
Total intangibles $ 193 $ 194
Less accumulated amortization (59) (54)
Intangible assets,net 134 140
Covenant not to compete [Member]    
Finite-Lived Intangible Assets [Line Items]    
Total intangibles 30 30
Patent-related costs [Member]    
Finite-Lived Intangible Assets [Line Items]    
Total intangibles $ 163 $ 164