Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of intangible assets

The carrying amounts related to acquired intangible assets as of September 30, 2017 are as follows ($ in thousands):

	Net Carrying Amount			Weighted average amortization period (years)
Patent Portfolios and Patent Rights at December 31, 2016, net	$	4,951			3.65
Amortization expenses		(1,027	)
Patent Portfolios and Patent Rights at September 30, 2017, net	$	3,924			2.91

Schedule of amortization to acquired intangible assets

The amortization expenses related to acquired intangible assets for the nine months ended September 30, 2017 and 2016 are as follows ($ in thousands):

	Amortization Expense for the Three Months Ended September 30,				Amortization Expense for the Nine Months Ended September 30,
Date Acquired and Description	2017		2016		2017		2016
7/24/13 - Rockstar patent portfolio	$	18	$	26	$	53	$	78
9/10/13 - North South patent portfolio		5		8		16		23
12/31/13 - Rockstar patent portfolio		323		502		958		1,497
	$	346	$	536	$	1,027	$	1,598

Schedule of future amortization of intangible assets

The future amortization of these intangible assets was based on the adjusted carrying amount. Future amortization of all patents is as follows ($ in thousands):

	Rockstar		North South		Rockstar
	Portfolio		Portfolio		Portfolio
	Acquired		Acquired		Acquired		Total
	24-Jul-13		10-Sep-13		31-Dec-13		Amortization
Six Months Ended December 31, 2017		18		6		323		347
Year Ended December 31, 2018		71		22		1,280		1,373
Year Ended December 31, 2019		71		22		1,280		1,373
Year Ended December 31, 2020		71		22		638		731
Year Ended December 31, 2021		71		22		—		93
Thereafter		4		3		—		7
Total	$	306	$	97	$	3,521	$	3,924