Information About Major Customers (Narrative) (Details) - Customer Concentration Risk [Member] - Sales Revenue, Net [Member] - Customer	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Automotive [Member]
Concentration Risk [Line Items]
Concentration	41.00%	36.00%	34.00%
Number of major customers	4
Manufacturing Line Builders, System Integrators and OEMs [Member]
Concentration Risk [Line Items]
Concentration	7.00%	11.00%	8.00%
Volkswagen Group [Member]
Concentration Risk [Line Items]
Concentration	15.00%	16.00%	17.00%
General Motors [Member]
Concentration Risk [Line Items]
Concentration	17.00%	14.00%	12.00%