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Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Significant Accounting Policies [Abstract]

Schedule of property, plant and equipment depreciation rates

			%
	Computers and software		20 - 33		(Mainly 33)
	Office furniture and equipment		6 - 15		(Mainly 6)
	Leasehold improvements		Over the shorter of the period of the lease or the life of the assets
	Motor vehicles		15

Schedule of weighted-average assumptions used in valuation of stock option

			Year ended December 31,
			2017				2016				2015
	Risk-free interest			2.05	%			1.09	%			1.13	%
	Dividend yields			0				0				0
	Volatility			57	%			85	%			76	%
	Expected option term			3.5 years				3.5 years				3.8 years
	Forfeiture rate			0	%			0	%			0	%

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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