Inventory (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventory consisted of the following as of June 30, 2018 and December 31, 2017:

(In thousands)	June 30, 2018		December 31, 2017
Raw materials	$	1,150	$	928
Work in process		1,243		746
Finished goods		981		125
Total inventories	$	3,374	$	1,799