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Patent Participation Fee (Narrative) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2013 | Sep. 30, 2014 | 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
Patent licensing | $ 200 |  |

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