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FOREIGN SALES AND SIGNIFICANT CUSTOMERS FOREIGN SALES AND SIGNIFICANT CUSTOMERS, NARRATIVE (Details) - Sales Revenue, Net [Member] - Customer Concentration Risk [Member]
12 Months Ended
Jun. 30, 2018
Rate
Jun. 30, 2017
Rate
Five largest customers [Member]    
Concentration Risk [Line Items]    
Concentration Risk, Percentage 47.00% 45.00%
Single United States Customer [Member]    
Concentration Risk [Line Items]    
Concentration Risk, Percentage 20.00% 14.00%