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Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2014

Shareholders' Equity [Abstract]

Schedule of assumptions used in estimation of grant date fair value of options

2. The Company recognizes compensation expenses on these options based on estimated grant date fair value using the Binomial option-pricing model with the following assumptions:

			Average Risk-free interest rate (a)	1.33	%
			Expected dividend yield	0.0	%
			Average expected volatility (b)	64.71	%
			Termination rate	9	%
			Suboptimal rate (c)	3.2

			(a)	Risk-free interest rate represents risk free US$ zero-coupon US Government Bonds at time of grant.
			(b)	Expected average volatility represents a weighted average standard deviation rate for the price of the Company's ordinary shares on the NASDAQ National Market.
			(c)	Suboptimal rate represents the multiple of the increase in the market share price on the day of grant of the option which, should it come to pass, will lead to exercise of the option by the employee. It is the average suboptimal rate of the Company and similar companies.

Schedule of assumptions used in estimation of grant date fair value of RSUs

3. The Company recognizes compensation expenses on these RSUs based on estimated grant date fair value, with the following assumptions:

			Expected dividend yield	2.06%
			Termination rate	4.35%

Stock Option Summary

F. The following table summarizes information regarding stock options as at December 31, 2014:

			Options outstanding				Options exercisable
					Weighted average					Weighted average
					remaining					remaining
Exercise price			Number		contractual life		Number			contractual life
US$			of options		(in years)		of options			(in years)
15.28			192,130		5.7		78,130			5.7

Summary of information regarding Restricted Share Units

G. The following table summarizes information regarding Restricted Share Units as at December 31, 2014:

								Restricted			Vested
								Share Units			Restricted
								Outstanding			Share Units
								74,000			-

Stock Option Activity

H. The stock option activity under the abovementioned plans is as follows: 

															Weighted
										Weighted					average
					Number					average					grant date
					of options					exercise price					fair value
										US$					US$
Balance at January 1, 2012						257,425
Granted						240,000					15.28					6.54
Exercised						(82,338)					3.35					1.81
Forfeited						(2,000)					15.28					6.54
Balance at December 31, 2012						413,087
Exercised						(132,587)					14.28					6.61
Forfeited						(7,750)					15.28					6.54
Balance at December 31, 2013						272,750
Exercised						(78,620)					17.19					7.70
Forfeited						(2,000)					15.28					6.54
Balance at December 31, 2014						192,130
Exercisable at December 31, 2014						78,130

Schedule of Restricted Share Units activity

I. The Restricted Share Units activity under the abovementioned plans is as follows:

Weighted

Number of

average

Restricted

grant date

Share Units

fair value

US$

US$

Balance at January 1, 2014

-

Granted

74,000

46.07

Balance at December 31, 2014

74,000

Summary of Allocation of the Stock-Based Compensation Expenses

J. During 2012, 2013 and 2014, the Company recorded share-based compensation expenses. The following summarizes the allocation of the stock-based compensation expenses:

				Year ended December 31
				2012		2013		2014
				US$ thousands		US$ thousands		US$ thousands
		Cost of sales		46		103		124
		Research and development costs		130		193		340
		Selling and marketing expenses		159		177		366
		General and administrative expenses		209		195		436
				544		668		1,266

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