Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Equity (Schedule of Composition of Share Capital) (Details)

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Equity (Schedule of Composition of Share Capital) (Details) - ₪ / shares
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of classes of share capital [abstract]      
Ordinary shares of NIS 10 par value, Authorized 17,000,000 17,000,000 17,000,000
Ordinary shares of NIS 10 par value, Outstanding [1] 10,675,508 10,675,508 10,677,370
Ordinary shares par value ₪ 10 ₪ 10 ₪ 10
[1] Net of treasury shares as follows: 258,046 Ordinary shares as of December 31, and as of December 31, 2017 and 256,184 Ordinary shares as of December 31, 2016, all of which have been purchased according to share buyback programs that were authorized the Company's Board of Directors.