Intangible Assets and Goodwill (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

The following table summarizes the carrying amount of our intangible assets and goodwill, net of accumulated amortization:

		September 30, 2017							December 31, 2016
	Estimated Life (years)	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Licenses	6-8	$	29	$	(29	)	$	—	$	29	$	(29	)	$	—
Patents	7	11		(11		)	—		11		(11		)	—
Purchased technology	6-16	4,711		(679		)	4,032		4,711		(439		)	4,272
Acquired IPR&D	Indefinite	—		—			—		31		—			31
Total		$	4,751	$	(719	)	$	4,032	$	4,782	$	(479	)	$	4,303
Goodwill	Indefinite	$	5,040	$	(3	)	$	5,037	$	5,040	$	(3	)	$	5,037