Intangible Assets, net (Tables)

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of intangible assets

Intangible assets as of June 30, 2018 and December 31, 2017 comprised the following (in thousands):

	June 30, 2018							December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Licensed intellectual property	$	4,750	$	(2,423	)	$	2,327	$	4,750	$	(2,126	)	$	2,624

Summary of estimated future amortization expense

Estimated future amortization expense for these licenses is as follows (in thousands):

Fiscal Years Ending	Future Amortization Expense
Remaining in 2018	$	296
2019	593
2020	593
2021	593
2022	252
Total	$	2,327