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CONSOLIDATED BALANCE SHEETS (Parenthetical)
$ in Thousands
Jun. 30, 2017
USD ($)
shares
Jun. 30, 2017
₪ / shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2016
₪ / shares
Statement of Financial Position [Abstract]        
Trade receivables, allowances for doubtful accounts | $ $ 9   $ 9  
Ordinary Shares, par value per share | ₪ / shares   ₪ 0.20   ₪ 0.20
Ordinary Shares, shares authorized 20,000,000   20,000,000  
Ordinary Shares, shares issued 11,725,421   11,622,260  
Ordinary Shares, shares outstanding 11,689,389   11,586,228