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CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - ₪ / shares
Jun. 30, 2017
Dec. 31, 2016
Statement of Financial Position [Abstract]    
Ordinary shares, par value per share ₪ 0.4 ₪ 0.4
Ordinary shares, shares authorized 32,500,000 32,500,000
Ordinary shares, shares issued 17,062,445 16,841,238
Ordinary shares, shares outstanding 17,062,445 16,841,238