General form of registration statement for all companies including face-amount certificate companies

Inventory - Schedule of Inventories (Detail)

v3.21.2
Inventory - Schedule of Inventories (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Inventory [Line Items]      
Raw materials $ 161 $ 21 $ 0
Work-in-process 53 83 0
Finished goods 1 5 0
Packaging 266 182 0
Consignment 166 21  
Inventory allowance (17) (69) 0
Total inventory, net $ 630 $ 243 $ 0