Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories are comprised of the following (in thousands):

	June 30, 2018		December 31, 2017
Raw materials	$	1,830	$	1,526
Work in process		1,571		1,337
Finished goods		901		1,012
Total Inventories, net	$	4,302	$	3,875