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SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2012
Accounting Policies [Abstract]  
Redeemable Noncontrolling Interest [Table Text Block]

The following table provides a reconciliation of the redeemable non-controlling interests:

 

January 1, 2012   $ -  
Redeemable non-controlling interests (see Note 3f)     1,880  
Net income attributable to redeemable non-controlling interests     253  
Foreign currency translation adjustments     27  
December 31, 2012   $ 2,160
Property, Plant and Equipment [Table Text Block]
                   Depreciation is calculated by the straight-line method over the estimated useful lives of the assets, at the following annual rates:

 

    Years  
       
Computers and peripheral equipment     3  
Office furniture and equipment     7 - 15 (mainly 7)  
Motor vehicles     7  
Software     3 – 5 (mainly 5)  
Leasehold improvements     Over the shorter of the lease term or useful economic life
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The fair value for the Company's stock options granted to employees and directors was estimated using the following weighted-average assumptions:

 

    2010     2011  
             
Dividend yield     0%     0%
Expected volatility     61.2% - 62.8%       63.3% - 65.3%  
Risk-free interest rate     2.53%-3.71%       2.1%
Expected forfeiture (employees)     9.7%     8.4%
Expected forfeiture (executives)     7.1%     5.2%
Contractual term of up to     10 years       10 years  
Suboptimal exercise multiple (employees)     2.3       2.7  
Suboptimal exercise multiple (executives)     3       3.2
Schedule Of Stock Based Compensation Expense [Table Text Block]

During the years ended December 31, 2010, 2011 and 2012, the Company recognized stock-based compensation expense related to employee stock options in the amount of $ 300, $ 633 and $ 515, respectively, as follows:

 

    Year ended December 31,  
    2010     2011     2012  
                   
Cost of revenue   $ 2     $ 4     $ 16  
Research and development     61       54       114  
Selling and marketing     75       92       82  
General and administrative     162       483       303  
                         
Total stock-based compensation expense   $ 300     $ 633     $ 515
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The following tables present fair value amounts and gains and losses of derivative instruments and related hedged items:

 

    Fair values of derivative instruments
    Assets
        December 31,  
    Balance sheet item   2011     2012  
Assets                    
                     
Derivatives not designated as hedging   "Other accounts receivable and prepaid expenses"   $ 54     $ 140  
Cash flow hedging:                    
Foreign exchange option contracts   " Other accounts receivable and prepaid expenses"     -       16  
                     
Liabilities                    
                     
Cash flow hedging:                    
Foreign exchange option contracts   "Accrued expenses and other accounts payable "     (12 )     -  
                     
Total derivatives       $ 42     $ 156
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]
 
Loss
recognized
in other
comprehensive		     Statements   Gain (loss)
recognized in the
statements of income		  
    income     of   Year ended December 31,  
    2012     income item   2010     2011     2012  
    (Effective
portion)		                        
Cash flow hedging:                            
Foreign exchange forward and option contracts     29     "Operating expenses"   $ (55 )   $ 63     $ -  
                                     
Derivatives not designated as hedging:                                    
Foreign exchange forward contracts           "Financial expenses, net"     4       59       245  
                                     
Total derivatives               $ (51 )   $ 122     $ 245