XML 59 R48.htm IDEA: XBRL DOCUMENT v3.21.2
Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Components of inventories    
Raw materials $ 15,024 $ 13,957
Work in process 4,383 3,996
Finished goods 5,232 6,721
Inventories, net $ 24,639 $ 24,674