Summary Of Significant Accounting Policies (Details) - USD ($) shares in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Advertising expenditures	$ 7,500,000	$ 6,900,000	$ 6,100,000
Design, research and development costs	4,200,000	$ 4,100,000	$ 2,800,000
Health care claims threshold for third party insurance	150,000
Workers' compensation threshold for third party insurance	$ 450,000
Potential common shares outstanding	50	30	26
Outstanding options to purchase common stock	120	255	254
Other Current Assets [Member] | As Previously Reported[Member]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		$ 4,200,000
Other Noncurrent Assets [Member] | Accounting Standards Update 2015-17 [Member]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		6,100,000
Other Noncurrent Assets [Member] | As Previously Reported[Member]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		$ 1,900,000