RESEARCH AND DEVELOPMENT, NET (Tables)
 12 Months Ended
Dec. 31, 2017
Research and Development [Abstract]  
Research and Development Disclosure [Table Text Block]
 
 
Year ended
December 31,
 
 
 
2017
 
2016
 
 
 
 
 
 
 
 
 
 
 
U.S. $ in thousands
 
 
 
 
 
 
 
 
 
Research and development
 
$
6,795
 
$
3,435
 
Less : Participation by the Israel Innovation Authorities
 
 
(1,393)
 
 
(1,185)
 
Less : Participation by CIRM
 
 
(4,425)
 
 
-
 
 
 
$
977
 
$
2,250