XML 53 R39.htm IDEA: XBRL DOCUMENT v3.19.1
Composition of Certain Financial Statement Captions - Inventories, Net (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Inventories, net [Abstract]    
Raw materials $ 758 $ 681
Work in process 555 722
Finished goods 1,634 1,780
Inventories, net $ 2,947 $ 3,183