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SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2012
SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Estimated Useful Lives of Fixed Assets
   
Years
 
Electronic equipment
  3-7  
Office furniture and equipment
  7-15  
Weighted Average Assumptions Used in Determining Fair Market Value of Options
   
2 0 1 2
   
2 0 1 1
   
2 0 1 0
 
Risk-free interest rate
  0.66%     1.35%     2.35%  
Expected life of options
 
4.75 years
   
4.75 years
   
6.25 years
 
Expected volatility
  87.86%     88.06%     81.77%  
Expected dividend yield
  0%     0%     0%