XML 42 R31.htm IDEA: XBRL DOCUMENT v3.8.0.1
Inventories (Tables)
 3 Months Ended
Mar. 31, 2018
Inventory Disclosure [Abstract]  
Inventories
Inventories consisted of the following: 
 
March 31, 2018
 
December 31, 2017
Raw materials
$
68,842

 
$
73,026

Work in process
10,723

 
10,136

Finished goods
15,072

 
15,853

 
$
94,637

 
$
99,015