Inventories (Tables)

12 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

Components of Inventory

Inventories consist of the following (in thousands):

	December 31,
	2021		2020
Raw materials	$	2,703	$	1,393
Work-in-process		2,522		2,484
Finished goods		1,927		1,096
Total inventory	$	7,152	$	4,973