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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Relevant Exchange Rates) (Details)
 12 Months Ended
Dec. 31, 2017
₪ / $
R$ / $
$ / $
Dec. 31, 2016
₪ / $
R$ / $
$ / $
Dec. 31, 2015
₪ / $
R$ / $
$ / $
IL [Member]      
Dollar Exchange Rate of Relevant Currencies [Line Items]      
Exchange rate of one US dollar | ₪ / $ 3.467 3.845 3.902
Increase (decrease) during the year: Exchange rate of one US dollar (9.83%) (1.46%) 0.33%
BR [Member]      
Dollar Exchange Rate of Relevant Currencies [Line Items]      
Exchange rate of one US dollar | R$ / $ 3.3080 3.2591 3.9048
Increase (decrease) during the year: Exchange rate of one US dollar 1.50% (16.54%) 47.01%
ZMK [Member]      
Dollar Exchange Rate of Relevant Currencies [Line Items]      
Exchange rate of one US dollar | $ / $ 18.774 15.850 13.005
Increase (decrease) during the year: Exchange rate of one US dollar 18.45% 21.87% 52.07%
Israeli Consumer Price Index [Member]      
Dollar Exchange Rate of Relevant Currencies [Line Items]      
Exchange rate of one US dollar [1] 113.05 112.59 112.82
Increase (decrease) during the year: Exchange rate of one US dollar [1] 0.40% (0.20%) (1.00%)
[1] Based on the Index for the month ending on each balance sheet date, on the basis of 2008 average 100.