Intangible Assets (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Amortization Expense	$ 2,135	$ 6,317
7/24/13 - Rockstar Patent Portfolio Acquired [Member]
Amortization Expense	104	303
9/10/13 - North South patent portfolio Acquired [Member]
Amortization Expense	31	84
12/31/13 - Rockstar Patent Portfolio Acquired [Member]
Amortization Expense	$ 2,000	$ 5,930