XML 53 R40.htm IDEA: XBRL DOCUMENT v3.21.2
Inventories, net - Summary of Inventories, Net (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Inventories, net    
Component parts $ 4,555 $ 5,439
Work-in-process and finished goods 7,160 7,654
Total $ 11,715 $ 13,093