Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory

The components of inventories are as follows:

	June 30,		December 31,
	2018		2017
	(In thousands)
	(unaudited)
Finished goods	$	5,803	$	4,432
Raw materials		5,237		6,385
Total inventories	$	11,040	$	10,817