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Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2012
Significant Accounting Policies [Abstract]  
Schedule Of Annual Depreciation Rates
 
%
   
Computers, manufacturing and peripheral equipment
6- 33
Office furniture and equipment
 Mainly 7
Leasehold improvements
Over the shorter of the term of the lease or useful life of the asset
Schedule Of Stock Option Granted Assumptions
   
December 31,
 
   
2010
   
2011
   
2012
 
                   
Dividend yield
    0 %     0 %     0 %
Volatility
    41%-66 %     37%-60 %     40%-64 %
Risk free interest
    0.25%-3.9 %     0.1%-3.48 %     0.1%-2.30 %
Early exercise multiple
    2.0-2.50       1.85-2.60       1.55-1.85