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SELECTED STATEMENTS OF OPERATIONS DATA (Tables)
 12 Months Ended
Dec. 31, 2013
SELECTED STATEMENTS OF OPERATIONS DATA [Abstract]  
Reconciliation of Allowance for Doubtful Accounts
Allowance for doubtful accounts:
 
   
Year ended
December 31,
  
   
2013
    
2012
    
2011
  
                   
Balance at beginning of year
   $ 3,602     $ 3,525     $ 5,450  
Increase during the year
     808       986       1,657  
Amounts collected
     (235 )     (222 )     (420 )
Write-off of bad debts
     (996 )     (687 )     (3,162 )
                         
Balance at the end of year
   $ 3,179     $ 3,602     $ 3,525  

Schedule of Financial Income (Expenses), Net
Financial income (expenses), net:

   
Year ended
December 31,
  
   
2013
    
2012
    
2011
  
Income:
                  
Interest on cash equivalents, bank deposits and restricted cash
   $ 411     $ 689     $ 1,064  
Other
     -       156       433  
                         
      411       845       1,497  
Expenses:
                        
Interest with respect to short-term bank credit and other
     138       177       241  
Interest with respect to long-term loans
     2,081       2,341       2,719  
Exchange rate differences
     3,269       1,067       773  
Other
     1,162       692       999  
                         
      6,650       4,277       4,732  
                         
Total financial expenses, net
   $ (6,239 )   $ (3,432 )   $ (3,235 )

Schedule of Other Income
Other income:
 
   
Year ended
December 31,
  
   
2013
    
2012
    
2011
  
                   
Settlement agreements relating to the aborted Agreement and Plan of Merger
   $ -     $ 2,727     $ 2,617  
Sale of an investment which previously had been written off
     -       -       3,034  
Adjustments to the fair value of the contingent consideration relating to Wavestream's acquisition
     -       -       2,539  
Other
     -       2       (116 )
                         
    $ -     $ 2,729     $ 8,074