PROPERTY AND EQUIPMENT (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment:      
Cost   $ 1,365 $ 1,256
Accumulated depreciation   1,107 1,009
Depreciated cost 327 258 247
Office furniture and equipment [Member]
     
Property, Plant and Equipment:      
Cost   18 9
Accumulated depreciation   5 4
Computer software and electronic equipment [Member]
     
Property, Plant and Equipment:      
Cost   149 120
Accumulated depreciation   116 106
Laboratory equipment [Member]
     
Property, Plant and Equipment:      
Cost   482 437
Accumulated depreciation   350 306
Leasehold improvements [Member]
     
Property, Plant and Equipment:      
Cost   716 690
Accumulated depreciation   $ 636 $ 593