XML 45 R34.htm IDEA: XBRL DOCUMENT v3.19.1
Inventory - Schedule of Inventory (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Finished goods $ 216 $ 284
Work in process 340 111
Raw materials and supplies 891 739
Total inventory $ 1,447 $ 1,134