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Inventories
12 Months Ended
Dec. 31, 2015
Inventory Disclosure [Abstract]  
Inventories
INVENTORIES
Inventories as of December 31, 2015 and 2014 consist of the following amounts (in thousands):
 
 
2015
 
2014
Raw materials and construction materials
$
23,239

 
$
23,330

Work in process
14,306

 
23,524

 
$
37,545

 
$
46,854