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CONDENCED CONSOLIDATED BALANCE SHEETS (Parenthetical) - ₪ / shares
Jun. 30, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Ordinary shares, par value per share ₪ 0.1 ₪ 0.1
Ordinary shares, shares authorized 50,000,000 50,000,000
Ordinary shares, shares issued 18,949,968 18,949,968
Ordinary shares, shares outstanding 18,949,968 18,949,968