XML 48 R37.htm IDEA: XBRL DOCUMENT v3.20.2
Inventories - Components of Inventory (Detail) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Raw materials $ 1,458 $ 1,751
Work-in-process 1,827 1,432
Finished goods 1,596 972
Total inventory $ 4,881 $ 4,155