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COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Details) (Narrative) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2017
Jun. 30, 2017
Aggregate cost $ 961 $ 663
Gross unrealized gain losses (131) 55
Gross unrealized losses   2
Gross unrealized gains   57
Income taxes on investments $ 22 $ 22
Customer List and Backlog [Member] | Maximum [Member]    
Useful life 10 years  
Covenant Not To Compete [Member] | Maximum [Member]    
Useful life 10 years  
Huber Precision [Member] | Customer List and Backlog [Member]    
Impairment charge $ 113