Stock-Based Compensation (Summary Of Shares Authorized Under Stock Option Plans, By Exercise Price Range) (Details) - $ / shares	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
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	622,636	635,158	658,641	765,486
Options Outstanding, Weighted Average Remaining Contractual Life	6 years 9 months 15 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 7.26	$ 7.53	$ 8.53	$ 8.09
Options Exercisable, Shares	336,022	329,210	356,966
Options Exerciable, Weighted Average Exercise Price (per share)	$ 7.50
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	5 years 2 months 16 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 3.95
Options Exercisable, Shares	27,067
Options Exerciable, Weighted Average Exercise Price (per share)	$ 3.50
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	505,136
Options Outstanding, Weighted Average Remaining Contractual Life	7 years 4 months 28 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 6.93
Options Exercisable, Shares	242,130
Options Exerciable, Weighted Average Exercise Price (per share)	$ 6.94
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	77,100
Options Outstanding, Weighted Average Remaining Contractual Life	3 years 6 months 11 days
Options outstanding, Weighted Average Exercise Price (per share)	$ 11.18
Options Exercisable, Shares	66,825
Options Exerciable, Weighted Average Exercise Price (per share)	$ 11.17