Inventory (Tables)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventory consisted of the following:

	December 31,
(in thousands)	2017		2016
Raw materials	$	10,447	$	9,658
Work in process	5,509		3,965
Finished goods	10,124		4,017
Total inventory	$	26,080	$	17,640