Inventories (Tables)

9 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories consists of the following (in thousands):

	September 30, 2018		December 31, 2017
Raw materials	$	921	$	721
Work in process	220		322
Finished goods	242		312
Total inventories	$	1,383	$	1,355