XML 62 R50.htm IDEA: XBRL DOCUMENT v3.20.4
Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Components of inventories    
Raw materials $ 13,957 $ 12,755
Work in process 3,996 3,117
Finished goods 6,721 7,593
Inventories $ 24,674 $ 23,465