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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (unaudited) - ₪ / shares
Mar. 31, 2020
Dec. 31, 2019
Statement Of Financial Position [Abstract]    
Ordinary shares, par value ₪ 0.01 ₪ 0.01
Ordinary shares, shares authorized 100,000,000 100,000,000
Ordinary shares, issued 21,212,940 21,026,184
Ordinary shares, outstanding 21,212,940 21,026,184