Summary of Significant Accounting Policies (Schedule Of Changes In Allowance For Doubtful Accounts) (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	$ 214	$ 146	$ 174
Costs and Expenses	137	36	(34)
Charge-offs	(82)	32	6
Ending Balance	$ 269	$ 214	$ 146