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SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2015
SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Schedule of Annual Rates of Depreciation


 

%




Computers and related equipment

 

15 - 33

Office furniture and equipment

 

7 - 33

Leasehold improvements

 

At the shorter of the lease period or
useful life of the leasehold improvement

Assumptions Used in Estimation of Fair Value of Stock-based Compensation Awards

2015

 

2014

 

2013

         

Dividend yield

0%   0%   0%

Expected volatility

51.4%-62%   70%-74%   71%-74%

Risk-free interest

  0.6%-1.7%   0.6%-0.8%   0.3%-0.6%

Expected life (in years)

  2.39-4.58   2.81   2.81