Inventory

3 Months Ended

Mar. 31, 2022

Inventory Disclosure [Abstract]

Inventory

4. Inventory

Inventory consisted of the following (in thousands):

	March 31,		December 31
	2022		2021
Raw materials	$	5,034	$	2,565
Work in process		1,295		446
Total inventory	$	6,329	$	3,011