Inventories (Tables)

3 Months Ended

Mar. 31, 2019

Inventory Disclosure [Abstract]

Schedule of Inventory

The components of inventories are as follows:

	March 31,		December 31,
	2019		2018
	(In thousands)
	(unaudited)
Finished goods	$	6,471	$	5,439
Raw materials		8,726		5,502
Total inventories	$	15,197	$	10,941