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NET INCOME (LOSS) PER SHARE (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
6 Months Ended 12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
NET INCOME (LOSS) PER SHARE [Abstract]      
Total weighted average number of shares related to outstanding options and RSUs excluded from the calculations of diluted net income (loss) per share 6,309,683 3,964,880  
Numerator for basic and diluted net loss per share -      
Net income (loss) available to Ordinary shareholders $ (2,211) $ 1,379 $ (5,850)
Denominator for basic net income (loss) per share -      
Weighted average number of shares 41,288,247 40,807,338  
Add - employee stock options, RSUs and convertible notes    1,307  
Denominator for diluted net income (loss) per share -      
adjusted weighted average shares assuming exercise of options 41,288,247 42,113,951