SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2017
Accounting Policies [Abstract]  
Schedule of Annual Depreciation Rates
Property and equipment are stated at cost, net of accumulated depreciation. Depreciation is calculated by the straight-line method over the estimated useful lives of the assets at the following annual rates:
 
    %  
       
Computers and peripheral equipment
    14 - 33  
Office furniture and equipment
  
7 - 15
  
Motor vehicles
    17  
Leasehold improvements
  
Over the shorter of the related lease period or the life of the asset
Schedule of Weighted Average Assumptions Used
The fair value for options granted in 2017, 2016 and 2015 was estimated at the date of grant using the following weighted average assumptions:

   
Year ended December 31,
  
   
2017
    
2016
    
2015
  
                   
Dividend yield
    
0%
 
    
0%
    
0%
Expected volatility
    
74%
    
65%
 
    
65%
Risk-free interest
    
2.23%
    
1.37%
    
1.75%
 
Expected term (years)
    
5.5
      
5.6
      
5.5
Schedule of Measurement of Fair value of assets and Liabilities
The following table presents the Company's assets and liabilities measured at fair value on a recurring basis as of December 31, 2017 and 2016:

   
December 31, 2017   
  
   
Fair value measurements using input type   
  
   
Level 1
    
Level 2
    
Total
  
                   
Marketable securities:
                  
Equity
  
$
561
    
$
-
    
$
561
  
Foreign currency derivative contracts
    
-
      
23
      
23
  
                         
   
$
561
    
$
23
    
$
584
  

   
December 31, 2016   
  
   
Fair value measurements using input type   
  
   
Level 1
    
Level 2
    
Total
  
                   
Marketable securities:
                  
Equity
  
$
911
    
$
-
    
$
911
  
Foreign currency derivative contracts
    
-
      
(28
)
    
(28
)
                         
   
$
911
    
$
(28
)
  
$
883
Schedule of components of accumulated other comprehensive income
The following table shows the components of accumulated other comprehensive income, net of taxes, for the year ended December 31, 2017:

   
Year ended December 31, 2017
  
   
Unrealized gains on marketable securities
    
Foreign currency translation adjustments
    
Unrealized gains (losses) on cash flow hedges
    
Total
  
                         
Beginning balance
    
273
      
(114
)
    
(28
)
    
131
  
                                 
Other comprehensive income
    
129
      
93
      
194
      
323
  
Amounts reclassified from accumulated other comprehensive income
    
(154
)
    
-
      
(143
)
    
(204
)
                                 
Net current-period other comprehensive income (loss)
    
(25
)
    
93
      
51
      
119
  
                                 
Ending balance
    
248
      
(21
)
    
23
      
250