Inventories (Tables)

6 Months Ended

Jun. 30, 2017

Inventory Disclosure [Abstract]

Summary of inventory on hand

Inventory on hand as of June 30, 2017 and December 31, 2016 comprised the following (in thousands):

	June 30, 2017		December 31, 2016
Raw materials	$	2,558	$	2,171
Work-in-process	2,249		1,488
Finished goods	2,298		2,974
Total inventories	$	7,105	$	6,633