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COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Details) (Narrative) - USD ($)
$ in Thousands
6 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 31, 2018
Jun. 30, 2017
Aggregate cost $ 1,469 $ 1,469 $ 663
Gross unrealized gain losses     55
Gross unrealized losses 74 105 2
Gross unrealized gains 15 19 57
Income taxes on investments   22 $ 22
2018 5 5  
2019 28 28  
2020 26 26  
2021 23 23  
2022 23 23  
2023 19 19  
Thereafter $ 21 $ 21  
Covenant not to compete [Member]      
Useful life   5 years