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Commitments And Contingencies (Schedule Of Patent Lawsuits) (Details)
12 Months Ended
Jun. 30, 2013
Pragmatus VOD LLC [Member]
 
Asserting Party Pragmatus VOD LLC
Jurisdiction U.S. District Court of Delaware
Patents at Issue U.S. Patents Nos. 5,581,479 and 5,636,139
Trans Video Electronics Ltd [Member]
 
Asserting Party Trans Video Electronics Ltd.
Jurisdiction U.S. District Court of Delaware
Patents at Issue U.S. Patents Nos. 5,594,936 and 5,991,801
Olympic Developments AG LLC [Member]
 
Asserting Party Olympic Developments AG, LLC
Jurisdiction U.S. District Court Central District of California
Patents at Issue U.S. Patents Nos. 5,475,585 and 6,246,400
InterAd Technologies [Member]
 
Asserting Party InterAd Technologies
Jurisdiction U.S. District Court of Delaware
Patents at Issue U.S. Patent No. 5,438,353
LVL Patent Group [Member]
 
Asserting Party LVL Patent Group
Jurisdiction U.S. District Court of Delaware
Patents at Issue U.S Patent No. 6,044,382
Sprint Communications Company LP [Member]
 
Asserting Party Sprint Communications Company, L.P.
Jurisdiction U.S. District Court Eastern District of Pennsylvania
Patents at Issue U.S. Patent Nos. 6,754,907 and 6,757,907
FutureVision.com LLC [Member]
 
Asserting Party FutureVision.com LLC
Jurisdiction U.S. District Court Eastern District of Texas
Patents at Issue U.S. Patent No. 5,877,755