Stock-Based Compensation (Summary Of Shares Authorized Under Stock Option Plans, By Exercise Price Range) (Details) - $ / shares	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
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	635,036	622,636	635,158	658,641
Options Outstanding, Weighted Average Remaining Contractual Life	6 years 11 months 23 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 7.02	$ 7.26	$ 7.53	$ 8.53
Options Exercisable, Shares	384,805	336,022	329,210
Options Exerciable, Weighted Average Exercise Price (per share)	$ 6.87
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	40,400
Options Outstanding, Weighted Average Remaining Contractual Life	4 years 2 months 12 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 3.95
Options Exercisable, Shares	33,733
Options Exerciable, Weighted Average Exercise Price (per share)	$ 3.77
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	5.70
Range of Exercise Prices (per share), Upper Limit	$ 8.81
Options Outstanding, Shares	555,136
Options Outstanding, Weighted Average Remaining Contractual Life	7 years 3 months 21 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 6.94
Options Exercisable, Shares	311,572
Options Exerciable, Weighted Average Exercise Price (per share)	$ 6.65
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	8.94
Range of Exercise Prices (per share), Upper Limit	$ 14.01
Options Outstanding, Shares	39,500
Options Outstanding, Weighted Average Remaining Contractual Life	5 years 2 months 12 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 11.25
Options Exercisable, Shares	39,500
Options Exerciable, Weighted Average Exercise Price (per share)	$ 11.25