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CONSOLIDATED BALANCE SHEETS (Parenthetical) - ₪ / shares
Dec. 31, 2017
Dec. 31, 2016
Statement of Financial Position [Abstract]    
Ordinary shares, par value ₪ 3.0 ₪ 3.0
Ordinary shares, shares authorized 10,000,000 10,000,000
Ordinary shares, shares issued [1] 2,028,552 2,028,552
Ordinary shares, shares outstanding [1] 2,028,552 2,028,552
[1] Respectively adjusted to reflect reverse split of shares.