Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

v3.21.2
Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Raw materials $ 884 $ 547
Work in process 60 270
Finished goods 53 60
Total inventories $ 997 $ 877