Inventories (Tables)

12 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories consisted of the following (in thousands):

	December 31,
	2021		2020
Raw materials	$	911	$	547
Work in process		70		270
Finished goods		5		60
Inventories	$	986	$	877