December 31,
		2013			2012
		U.S. $ in thousands
Cost:
Office furniture and equipment			18			9
Computer software and electronic equipment			149			120
Laboratory equipment			482			437
Leasehold improvements			716			690
			1,365			1,256
Accumulated depreciation:
Office furniture and equipment			5			4
Computer software and electronic equipment			116			106
Laboratory equipment			350			306
Leasehold improvements			636			593
			1,107			1,009
Depreciated cost			258			247

 

Depreciation expenses for the year ended December 31, 2013 and December 31, 2012 were $97, and $157, respectively.