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Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Significant Accounting Policies [Abstract]

Schedule of annual rates of depreciation

				%
	Computers and electronic equipment			15 - 33
	Office furniture and equipment			6 - 33
	Leasehold improvements			At the shorter of the lease period or useful life of the leasehold improvement

Schedule of fair value for options granted

			2017				2016				2015
	Dividend yield			0	%			0	%			0	%
	Expected volatility			46.4%-55.9	%			50.7%-59.4	%			51.4%-62	%
	Risk-free interest			1.6%-2.1	%			0.8%-1.4	%			0.6%-1.7	%
	Expected life (in years)			3.43-4.76				2.79-4.99				2.39-4.58

X

- Definition

Tabular disclosure of the depreciation rates of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References

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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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