Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

At December 31, 2018 and 2017, intangible assets, primarily consisting of acquired patents and accumulated amortization were as follows (in thousands):

	December 31,
	2018 (1)		2017
Intangible assets	$	19,020	$	23,294
Accumulated amortization		(15,895)		(16,394)
Intangible assets, net	$	3,125	$	6,900

(1) Reflects the effect of the AgeX Deconsolidation.

Schedule of Intangible Assets Future Amortization Expense

Amortization of intangible assets for periods subsequent to December 31, 2018 is as follows (in thousands):

Year Ended December 31,	Amortization Expense
2019	$	1,911
2020		1,124
2021		90
Total	$	3,125