RESEARCH AND DEVELOPMENT, NET (Tables)
 12 Months Ended
Dec. 31, 2014
Research and Development [Abstract]  
Research and Development Disclosure [Table Text Block]
 
 
Year ended
December 31,
 
 
 
2014
 
2013
 
 
 
U.S. $ in thousands
 
 
 
 
 
 
 
Research and development
 
6,116
 
4,030
 
Less : Participation by the Israeli Office of the Chief Scientist
 
(1,344)
 
(1,113)
 
 
 
4,772
 
2,917