Stock-Based Compensation (Schedule Of Stock Option Plans) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Jun. 30, 2017
Stock-Based Compensation [Abstract]
Shares, Outstanding and exercisable	166	187
Shares, Granted	36	21
Shares, Exercised	(3)	(21)
Shares, Canceled	(3)	(21)
Shares, Outstanding and exercisable	196	166
Weighted Average Exercise Price, Oustanding and exercisable	$ 30.65	$ 27.21
Weighted Average Exercise Price, Granted	32.80	45.21
Weighted Average Exercise Price, Exercised	17.23	18.89
Weighted Average Exercise Price, Canceled	45.46	26.77
Weighted Average Exercise Price, Oustanding and exercisable	$ 30.97	$ 30.65
Aggregate Intrinsic Value	$ 744	$ 1,841	$ 5,039