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RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of Transactions with Related Parties) (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Related Party Transaction [Line Items]    
Revenues $ 10,016 $ 7,602
Expenses:    
Cost of sales 3,316 3,036
Operating expenses:    
Research and development 2,871 3,071
Sales and marketing 3,790 4,763
General and administrative 978 1,011
Transactions With Related Parties [Member]
   
Related Party Transaction [Line Items]    
Revenues 20 630
Expenses:    
Cost of sales 27 34
Operating expenses:    
Research and development 103 99
Sales and marketing 64 81
General and administrative $ 25 $ 30