XML 54 R40.htm IDEA: XBRL DOCUMENT v3.19.1
2. Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Inventory Disclosure [Abstract]    
Raw materials $ 3,647 $ 2,829
Work-in-progress 1,327 1,605
Finished goods 1,155 1,303
Total inventories $ 6,129 $ 5,737