PROPERTY AND EQUIPMENT
 12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Disclosure [Text Block]

NOTE 6 - PROPERTY AND EQUIPMENT

  December 31, 
  2 0 1 2  2 0 1 1 
  U.S. $ in thousands 
       
Cost:        
  Office furniture and equipment  9   9 
  Computer software and electronic equipment  120   106 
  Laboratory equipment  437   361 
  Leasehold improvements  690   690 
   1,256   1,166 
Accumulated depreciation:        
  Office furniture and equipment  4   4 
  Computer software and electronic equipment  106   103 
  Laboratory equipment  306   252 
  Leasehold improvements  593   493 
   1,009   852 
         
Depreciated cost  247   314 
         

Depreciation expenses for the year ended December 31, 2012 and December 31, 2011 were $157, and $153, respectively.