XML 28 R13.htm IDEA: XBRL DOCUMENT v3.19.1
Inventories
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Inventories Inventories
 
Inventories as of December 31, 2018 and 2017 consisted of (in thousands):
 2018 2017 
Raw materials$10,456 $8,231 
Work in progress116 616 
Finished goods8,391 8,532 
Inventories reserve(2,667)(1,304)
 $16,296 $16,075