Inventory (Tables)

12 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

Schedule of inventory

Inventory consisted of the following:

	December 31,
(in thousands)	2019		2018
Raw materials	$	11,417	$	11,100
Work in process	9,450		4,261
Finished goods	8,313		17,658
Total inventory	$	29,180	$	33,019