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OTHER ACCOUNTS RECEIVABLE AND PREPAID EXPENSES (Tables)
 12 Months Ended
Dec. 31, 2012
Other Accounts Receivable and Prepaid Expenses Disclosure [Abstract]  
Schedule Of Accounts Receivable and Prepaid Expenses [Table Text Block]
 

    December 31,  
    2011     2012  
             
Short-term lease deposits   $ 817     $ 615  
Prepaid expenses     427       1,039  
Government authorities     3,073       2,313  
Deferred tax assets, net     1,878       2,522  
Restricted deposits     -       163  
Other     206       44  
                 
    $ 6,401     $ 6,696