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SHARE CAPITAL (Schedule of Status of Grants to Employees) (Details) (USD $)
 6 Months Ended 12 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Number        
Balance outstanding at beginning of period 454,354 428,367 109,197 106,213
Granted 17,500   4,273 2,984
Exercised            
Forfeited    (3,328)      
Balance outstanding at end of the period 471,854 454,354 428,367 109,197
Balance exercisable at the end of the period 113,342 110,142 109,197 106,213
Weighted average exercise price (US$)        
Balance outstanding at beginning of period $ 5.44 $ 5.37 $ 2.81 $ 2.73
Granted $ 6.25   $ 6.02 $ 5.52
Exercised            
Forfeited    $ 3.84      
Balance outstanding at end of the period $ 5.47 $ 5.44 $ 5.37 $ 2.81
Balance exercisable at the end of the period $ 2.99 $ 2.9 $ 2.81 $ 2.73
Grants to Messrs. Gal and Malka [Member]
        
Number        
Granted   29,315 314,897  
Weighted average exercise price (US$)        
Granted   $ 6.25 $ 6.25