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GENERAL (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 1 Months Ended 6 Months Ended 12 Months Ended
Jul. 31, 2012
Dec. 31, 2010
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
GENERAL [Abstract]          
Number of shares owned of Evogene investment     1,043,397    
Percentage of available for sale securities held by the company     2.80%    
Support received from investor under research and development funding arrangement $ 1,000 $ 5,000 $ 2,000    
Maximum potential support to be received from investors         8,000
Net proceeds from At-the-Market program     (3,663)     
Gross value of all shares issued, sold and unsold under At-the-Market program     $ 40,000    
Common shares issued during period, under At-the-Market program     651,000