XML 54 R29.htm IDEA: XBRL DOCUMENT

Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]


	September 30, 2013
Common stock shares available for grant		1,800,151
Common stock options outstanding		3,225,204
Restricted stock awards outstanding		44,000
Restricted stock units outstanding		710,723

Schedule of Employee Stock Purchase Plan


	Nine Months Ended September 30, 2013
Shares purchased under ESPP		36,921
Average price of shares purchased under ESPP	$	5.36
Intrinsic value of shares purchased under ESPP	$	210,984

Schedule of Stock Options Activity

The following table sets forth the summary of option activity under the Company’s stock option plans for the nine months ended September 30, 2013 and year ended December 31, 2012:


	Nine Months Ended September 30, 2013			Year Ended December 31, 2012
Beginning outstanding balance		3,155,631			3,267,838
Granted		1,036,900			425,150
Exercised		(943,609	)		(231,403	)
Forfeited and cancelled		(23,718	)		(305,954	)

Ending outstanding balance		3,225,204			3,155,631

Aggregate intrinsic value of options exercised	$	5,694,000		$	443,000
Weighted average fair value of options granted		5.61			3.35

Schedule of Information Regarding Stock Options Outstanding

Information regarding stock options outstanding at September 30, 2013 and December 31, 2012 is summarized below:


	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (years)		Aggregate Intrinsic Value (In millions)
December 31, 2012
Options outstanding		3,155,631	$	6.65		5.24	$	3.5
Options vested and expected to vest using estimated forfeiture rates		3,019,979		6.67		5.17		3.4
Options exercisable		2,329,987		6.91		4.69		2.5
September 30, 2013
Options outstanding		3,225,204	$	7.74		5.70	$	18.2
Options vested and expected to vest using estimated forfeiture rates		2,953,946		7.56		5.64		17.2
Options exercisable		1,692,770		6.70		5.13		11.4

Schedule of Restricted Stock Units Activity

RSU activity for the nine months ended September 30, 2013 and year ended December 31, 2012 was as follows:


	Nine Months Ended September 30, 2013			Year Ended December 31, 2012
Beginning outstanding balance		708,651			407,765
Awarded		294,150			555,911
Released		(278,548	)		(203,519	)
Forfeited		(13,530	)		(51,506	)

Ending outstanding balance		710,723			708,651

Weighted average grant date fair value of RSUs granted	$	7.12		$	6.64
Total fair value of RSUs released		2,507,000			1,128,000
Total fair value of RSUs remaining unvested		9,382,000			4,868,000

Schedule of Information Regarding Restricted Stock Unit Outstanding

Information regarding RSUs outstanding at September 30, 2013 and December 31, 2012 is summarized below:


	Number of Shares		Weighted Average Remaining Contractual Life (years)		Aggregate Intrinsic Value (In millions)		Fair Value (In millions)
December 31, 2012
RSUs outstanding		708,651		1.09	$	4.9	$	4.9
RSUs vested and expected to vest using estimated forfeiture rates		588,170		1.05		4.0
September 30, 2013
RSUs outstanding		710,723		1.12	$	9.4	$	9.4
RSUs vested and expected to vest using estimated forfeiture rates		599,840		1.10		7.9

Schedule of Restricted Stock Awards Activity

Restricted stock award activity for the nine months ended September 30, 2013 and year ended December 31, 2012 was as follows:


	Nine Months Ended September 30, 2013			Year Ended December 31, 2012
Beginning outstanding balance		44,000			18,000
Awarded		44,000			57,750
Released		(44,000	)		(31,750	)
Forfeited		0			0

Ending outstanding balance		44,000			44,000

Weighted average grant date fair value of restricted stock awarded	$	14.09		$	5.70
Total fair value of restricted stock awards released		620,000			171,000

Schedule of Stock Option and Employee Stock Purchase Plan, Valuation Assumptions

The assumptions used to value option grants under the Company’s Stock Plans were as follows:


	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Options
Expected life (in years)		4.7			4.5			4.9			4.5
Volatility		64	%		68	%		68	%		70	%
Interest rate		1.3	%		0.6	%		0.8	%		0.7	%
Dividend yield		N/A			N/A			N/A			N/A


	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Employee Stock Purchase Plan
Expected life (in years)		0.5			0.5			0.5			0.5
Volatility		69	%		52	%		67	%		62	%
Interest rate		0.8	%		0.1	%		0.1	%		0.1	%
Dividend yield		N/A			N/A			N/A			N/A

Schedule of Stock-Based Compensation

Total stock-based compensation recognized in the condensed consolidated statements of operations and comprehensive income (loss) is as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
	(In thousands)				(In thousands)
Statement of Operations Classifications
Sales and marketing	$	223	$	152	$	496	$	376
Research and development		231		173		807		586
General and administrative		795		483		2,135		1,384

Total	$	1,249	$	808	$	3,438	$	2,346