Stockholders' Equity (Deficiency) (Tables)

6 Months Ended

Jun. 30, 2014

Summary of Stock Options Activities

A summary of employees’ stock options activities during the six months ended June 30, 2014 is as follows:

	Six Months Ended June 30, 2014 (unaudited)
	Number			Average exercise price		Aggregate intrinsic value (in thousands)		Average remaining contractual life (years)
Options outstanding at the beginning of the year		3,233,235		$	4.033	$	65,723		5.700
Granted		516,940		$	29.422
Exercised		(12,594	)	$	1.985
Forfeited		(21,929	)	$	17.290
Options outstanding at the end of the period		3,715,652		$	7.493	$	82,249		5.824
Vested and expected to vest		3,634,396		$	7.148	$	81,560		5.745
Options exercisable at the end of the period		2,682,549		$	1.948	$	72,596		4.508

Options Outstanding Separated into Range of Exercise Price

b. The options outstanding as of June 30, 2014 (unaudited) have been separated into ranges of exercise price as follows:

Range of exercise price	Options outstanding as of June 30, 2014		Weighted average remaining contractual life (years)		Weighted average exercise price		Options exercisable as of June 30, 2014		Weighted average remaining contractual life (years)		Weighted average exercise price of options exercisable
$  0.070  -  0.901		758,047		2.871	$	0.744		758,047		2.871	$	0.744
$  1.039  -  1.576		1,671,942		4.710	$	1.260		1,663,059		4.702	$	1.258
$  6.230  -  8.800		180,773		7.382	$	6.713		121,081		7.303	$	6.758
$12.470		433,950		8.677	$	12.470		140,362		8.644	$	12.470
$21.14  -  24.23		459,090		9.640	$	22.000		—		—	$	—
$39.86		211,850		9.732	$	39.860		—		—	$	—
		3,715,652		5.824	$	7.493		2,682,549		4.508	$	1.948

Summary of Weighted Average Assumptions Used to Estimate Fair Value of Stock Option Grants

c. The fair value of stock option grants for the period ended June 30, 2014 was estimated using the following weighted average assumptions:

	Period Ended June 30, 2014
	Unaudited
Expected dividend yield		0	%
Expected volatility		60	%
Risk-free interest rate		2.21	%
Expected term (years)		6.25

Summary of Recognized Non-Cash Stock-Based Compensation Expense

The Company recognized non-cash stock-based compensation expense in the consolidated statements of operations as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2014		2013		2014		2013
	(unaudited) (In thousands)				(unaudited) (In thousands)
Cost of revenues	$	46	$	5	$	66	$	11
Research and development		272		126		471		185
Sales and marketing		519		199		859		265
General and administrative		141		92		228		155
Total	$	978	$	422	$	1,624	$	616

Consultants [Member]

Summary of Stock Options Activities

The Company’s outstanding options granted to consultants for sales and pre-marketing services as of June 30, 2014 (unaudited) were as follows:

	Options for shares of common stock		Exercise price per share		Options exercisable		Exercisable through
	(number)				(number)
December 2006		40,090	$	0.901		40,090	December 2016
February 2013		4,000	$	12.470		1,333	February 2023
August 2013		5,000	$	21.140		—	August 2023
October 2013		1,250	$	24.230		—	October 2023
March 2014		18,350	$	39.860		—	March 2024
May 2014		8,700	$	22.010		—	May 2024
		77,390				41,423