Commitments and Contingencies, Litigation (Details)	3 Months Ended
	Sep. 30, 2013
Trans Video Electronics Ltd. [Member]
Loss Contingencies [Line Items]
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]
Loss Contingencies [Line Items]
Asserting Party	Olympic Developments AG, LLC
Jurisdiction	U.S. District Court Central
Patents at Issue	U.S. Patents Nos. 5,475,585
Olympic Developments AG, LLC [Member]
Loss Contingencies [Line Items]
Asserting Party	Olympic Developments AG, LLC
Jurisdiction	District of California
Patents at Issue	U.S. Patents Nos. 6,246,400
InterAd Technologies [Member]
Loss Contingencies [Line Items]
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]
Loss Contingencies [Line Items]
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, L.P. [Member]
Loss Contingencies [Line Items]
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]
Loss Contingencies [Line Items]
Asserting Party	FutureVision.com LLC
Jurisdiction	U.S. District Court Eastern District of Texas
Patents at Issue	U.S. Patent No. 5,877,755