XML 43 R32.htm IDEA: XBRL DOCUMENT v3.19.2
Inventory (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 766 $ 836
Work-in-process 7,671 6,885
Finished goods 1,982 2,391
Total inventory $ 10,419 $ 10,112