Stock-Based Compensation (Schedule Of Stock Option Valuation Assumptions) (Details) - $ / shares	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Weighted average estimated fair value per share of options granted during the period	$ 2.19	$ 3.91
Common stock price volatility	43.50%	43.50%
Risk free rate of return	2.56%	2.56%
Expected option term (in years)	6 years 7 months 6 days	6 years 7 months 6 days