Stock-Based Compensation (Schedule Of Stock Option Valuation Assumptions) (Details) - $ / shares	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Weighted average estimated fair value per share of options granted during the period	$ 3.91	$ 3.96
Common stock price volatility	43.50%	49.01%
Risk free rate of return	2.56%	1.81%
Expected option term (in years)	6 years 7 months 6 days	5 years 4 months 24 days