XML 78 R50.htm IDEA: XBRL DOCUMENT v3.20.1
Inventories - Components (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Inventories    
Finished goods $ 15,319 $ 15,577
Work in process 778 1,139
Raw materials and supplies 5,208 7,667
Total $ 21,305 $ 24,383