XML 82 R56.htm IDEA: XBRL DOCUMENT v3.19.3
Inventories (Detail) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 4,760 $ 4,598
Work-in-progress 143 77
Finished goods 9,061 8,956
Total $ 13,964 $ 13,631