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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)
Sep. 30, 2019
$ / shares
shares
Dec. 31, 2018
₪ / shares
shares
Statement Of Financial Position [Abstract]    
Common stock, par value | (per share) $ 0.001 ₪ 0.07
Common stock, shares authorized 30,000,000 30,000,000
Treasury shares   43,000
Common stock, shares issued 15,126,000 10,762,000
Common stock, shares outstanding 15,126,000 10,719,000