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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory
a.
Inventories at December 31, 2017 and 2018 consisted of the following:
 
 
 
December 31,
 
(
U.S. dollars in thousands)
 
2017
 
 
2018
 
Raw materials
 
$
3,838
 
 
$
3,792
 
Work in progress
 
 
485
 
 
 
 
 
Finished goods
 
 
3,510
 
 
 
4,777
 
Total inventory
 
$
7,833
 
 
$
8,569