Inventory

6 Months Ended

Jun. 30, 2021

Inventory Disclosure [Abstract]

Inventory

4. Inventory

Inventory consisted of the following (in thousands):

	June 30, 2021		December 31, 2020
Raw materials	$	3,135	$	2,664
Work in process		153		747
Finished goods		2,093		1,926
Total inventory	$	5,381	$	5,337