Patent Participation Fee (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2003
Asset Acquisition, Contingent Consideration	Consideration provided was $100 plus a 35% residual payable to the third party relating to the net proceeds from future licensing and/or enforcement actions from the HGI VoIP patent portfolio.
Consideration provided to the third party		$ 100