Intangible Assets

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Note 7. Intangible Assets

Patent Portfolio

The Company’s intangible assets with finite lives consist of its patents and patent rights. For all periods presented, all of the Company’s identifiable intangible assets were subject to amortization. The net carrying amounts related to acquired intangible assets 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		(1,373	)
Patent Portfolios and Patent Rights at December 31, 2017, net	$	3,578			2.67
Amortization expenses		(1,405	)
Impairment loss		(2,173	)
Patent Portfolios and Patent Rights at December 31, 2018, net	$	—			—

The Company reviews its patent portfolio for impairment as a single asset group whenever events or changes in circumstances indicate that the carrying value may not be recoverable.

The Company reviews its patent portfolio for impairment as a single asset group whenever events or changes in circumstances indicate that the carrying value may not be recoverable. During the year ended 2018, the Company determined that certain events occurred that were indicators of a potential impairment. In accordance with ASC 360-10, the Company first estimated the future undiscounted cash flows anticipated to be generated by the patent portfolio based on the Company’s current usage and future plans for the patent portfolio over its remaining weighted average useful life. Given the short-term nature of the patents the undiscounted cash flows approximate discounted cash flows. The analysis concluded that the carrying amount of the patent portfolio was not recoverable. The Company recorded a $2.2 million impairment charge against its patent portfolio to write off the entire remaining balance of the intangible assets during the year ended December 31, 2018.

There was no impairment charges recorded during the year ended December 31, 2017.