Summary of Significant Accounting Policies (Schedule Of Long-Term Investments) (Details) (Preferred Stock [Member], USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	$ 3,700,000	$ 6,300,000
Gross Unrealized Gain (Loss)	(2,975,000)	(4,108,000)
Book Value	725,000	2,192,000
Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds	2,600,000
Available-for-sale Securities, Gross Realized Gain (Loss)	$ 1,100,000