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GENERAL (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 6 Months Ended
May 25, 2016
May 19, 2016
Mar. 31, 2016
Jun. 30, 2016
Jun. 30, 2015
May 04, 2016
Dec. 31, 2015
Related Party Transaction [Line Items]              
Initial payment received under sales agreement     $ 18,000        
Accumulated deficit       $ 55,369     $ 58,019
Cash generated from operating activities       13,401 $ 2,964    
Revenues       13,747 $ 11,191    
Aggregate ordinary shares in one or more offerings           50,000  
Offering price per share $ 11.00 $ 11.00          
Purchase of additional ordinary shares 272,727 272,727          
Shares issued in secondary public offering, shares 2,090,909            
Issuance of Ordinary Shares, net of issuance costs of $1.7 million, upon follow-on public offering       21,284      
Gross proceeds from issuance of shares $ 21,300 $ 20,000   1,700      
Stock issuance costs $ 1,700 $ 1,500          
North American Tier-1 telecom operator [Member]              
Related Party Transaction [Line Items]              
Revenues       $ 11,424      
Customer [Member] | Revenue [Member]              
Concentration Risk [Line Items]              
Concentration of revenues       83.00%