XML 43 R32.htm IDEA: XBRL DOCUMENT v3.19.1
Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 1,321 $ 1,291
Work-in-process 3,041 3,485
Finished goods 3,805 3,614
Total inventories $ 8,167 8,390
Reserve for inventory   $ 200