Inventory (Tables)

9 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Inventory

Inventory consists of the following (in thousands):

	September 30, 2018		December 31, 2017
Raw materials	$	1,802	$	1,796
Work-in-process		9,339		4,843
Finished goods		2,155		4,087
Total inventory	$	13,296	$	10,726