Stock-Based Compensation (Summary Of Shares Authorized Under Stock Option Plans, By Exercise Price Range) (Details) - $ / shares	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices (per share), Lower Limit	$ 2.80
Range of Exercise Prices (per share), Upper Limit	$ 14.01
Options Outstanding, Shares	204,926	567,121	635,036
Options Outstanding, Weighted Average Remaining Contractual Life	5 years 5 months 15 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 7.28	$ 7.22	$ 7.02
Options Exercisable, Shares	166,593	436,953
Options Exercisable, Weighted Average Exercise Price (per share)	$ 7.79
Exercise Price Range One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices (per share), Lower Limit	2.80
Range of Exercise Prices (per share), Upper Limit	$ 4.87
Options Outstanding, Shares	33,000
Options Outstanding, Weighted Average Remaining Contractual Life	9 years 4 months 17 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 4.53
Exercise Price Range Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices (per share), Lower Limit	4.88
Range of Exercise Prices (per share), Upper Limit	$ 8.81
Options Outstanding, Shares	136,426
Options Outstanding, Weighted Average Remaining Contractual Life	5 years 29 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 6.89
Options Exercisable, Shares	131,093
Options Exercisable, Weighted Average Exercise Price (per share)	$ 6.83
Exercise Price Range Three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices (per share), Lower Limit	8.82
Range of Exercise Prices (per share), Upper Limit	$ 14.01
Options Outstanding, Shares	35,500
Options Outstanding, Weighted Average Remaining Contractual Life	3 years 3 months 7 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 11.33
Options Exercisable, Shares	35,500
Options Exercisable, Weighted Average Exercise Price (per share)	$ 11.33