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TAXES ON INCOME (Schedule of Changes in Valuation Allowance) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Changes in Valuation Allowance
Balance	$ 3,409	$ 3,449	$ 3,574
Deductions during the year	8	(40)	(125)
Balance	3,417	$ 3,409	$ 3,449
Investments In Foreign Subsidiaries And Foreign Corporate Joint Ventures That Are Permanent In Nature [Member]
Changes in Valuation Allowance
Undistributed earnings of foreign subsidiaries	1,936
The amount of deferred tax liability that would be recorded if foreign earnings were distributed by cash dividend	$ 445
Tax rate on recognized foreign earnings dividends	23.00%

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The amount of deferred tax liability that would be recorded if foreign earnings were distributed by cash dividend.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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