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CONSOLIDATED BALANCE SHEETS (PARENTHETICAL)
$ in Thousands
Dec. 31, 2018
USD ($)
shares
Dec. 31, 2018
₪ / shares
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2017
₪ / shares
Statement of Financial Position [Abstract]        
Trade receivables, allowance for doubtful accounts | $ $ 20   $ 15  
Ordinary shares, par value per share | ₪ / shares   ₪ 0.4   ₪ 0.4
Ordinary shares, shares authorized 32,500,000   32,500,000  
Ordinary shares, shares issued 21,672,401   20,718,468  
Ordinary shares, shares outstanding 21,672,401   20,718,468