Inventories (Tables)

3 Months Ended

Mar. 31, 2022

Inventory Disclosure [Abstract]

Schedule of Inventory, Net of Write-Downs

Inventory, net of write-downs, as of March 31, 2022 and December 31, 2021 were as follows (in thousands):

	March 31, 2022		December 31, 2021
	(unaudited)
Raw materials	$	1,810	$	1,544
Work in-process	2,432		2,447
Finished goods	12		94
Total inventory, net	$	4,254	$	4,085