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Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Stock Options and Awards

Awards granted other than an option or stock appreciation right shall reduce the common stock shares available for grant by 1.75 shares for every share issued.

		December 31,
		2014
Common stock shares available for grant			2,247,565
Common stock options outstanding			3,536,157
Restricted stock awards outstanding			35,364
Restricted stock units outstanding			564,891

Schedule of Employee Stock Purchase Plan

The intrinsic value listed below is calculated as the difference between the market value on the date of purchase and the purchase price of the shares.

		Year Ended December 31, 2014
Shares purchased under ESPP			38,298
Average price of shares purchased under ESPP		$	9.95
Intrinsic value of shares purchased under ESPP		$	107,000

Schedule of Standard and Market-based Stock Options Activity

The following table sets forth the summary of option activity under the Company’s stock option plans for the years ended December 31, 2014, 2013, and 2012:

		Number of Shares				Weighted Average Exercise Price				Weighted Average Fair Value Of Options Granted				Aggregate Intrinsic Value of Options Exercised (In thousands)
Outstanding at January 1, 2012			3,267,838			$	6.61
Granted			425,150				6.10			$	3.35
Exercised			(231,403	)			4.52							$	443
Forfeited			(47,959	)			5.89
Expired			(257,995	)			7.32
Outstanding at December 31, 2012			3,155,631				6.65
Granted			1,058,700				10.20				5.63
Exercised			(956,633	)			6.68								5,774
Forfeited			(10,531	)			8.24
Expired			(20,000	)			9.01
Outstanding at December 31, 2013			3,227,167				7.78
Granted			604,620				10.32				4.93
Exercised			(205,744	)			6.34								1,125
Forfeited			(102,454	)			7.20
Expired			(37,432	)			10.19
Outstanding at December 31, 2014			3,486,157				8.30

 The following table sets forth the summary of the market-based option activity under the Company’s stock option plans for the year ended December 31, 2014:

		Number     of  Shares				Weighted Average Exercise     Price				Weighted Average Fair Value Of Options      Granted				Aggregate Intrinsic Value of Options Exercised   (In thousands)
Outstanding at January 1, 2014			0			$	0.00
Granted			50,000				11.94				5.71
Exercised			0				0.00								0
Forfeited			0				0.00
Expired			0				0.00
Outstanding at December 31, 2014			50,000				11.94

Schedule of Information Regarding Standard and Market Condition Based Stock Options Outstanding

Information regarding standard stock options outstanding at December 31, 2014, 2013, and 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
December 31, 2013
Options outstanding			3,227,167			$	7.78				5.46			$	9.9
Options vested and expected to vest using estimated forfeiture rates			2,994,044				7.61				5.41				9.6
Options exercisable			1,774,546				6.67				4.95				7.5
December 31, 2014
Options outstanding			3,486,157			$	8.30				4.85			$	6.6
Options vested and expected to vest using estimated forfeiture rates			3,319,308				8.21				4.80				6.6
Options exercisable			2,023,024				7.18				4.26				6.0

Information regarding these market condition based stock options outstanding at December 31, 2014 is summarized below:

		Number of        Shares				Weighted Average Exercise Price				Weighted Average Remaining Contractual     Life (years)				Aggregate Intrinsic Value   (In millions)
December 31, 2014
Options outstanding			50,000			$	11.94				6.15			$	0.0
Options vested and expected to vest using estimated forfeiture rates			45,430				11.94				6.15				0.0
Options exercisable			0				0.00				0.00				0.0

Additional Information Regarding Options Outstanding

Additional information regarding standard options outstanding as of December 31, 2014 is as follows:

		Options Outstanding												Options Exercisable
Range of Exercise   Prices		Number Outstanding				Weighted Average Remaining Contractual Life (Years)				Weighted Average Exercise Price				Number Exercisable				Weighted Average Exercise Price
$  2.70 - $3.81			20,297				4.21			$	2.88				20,297			$	2.88
3.85 - 3.85			600,000				4.87				3.85				600,000				3.85
4.24 - 6.12			578,769				4.09				5.86				467,289				5.83
6.23 - 8.61			453,931				4.39				7.44				366,187				7.43
8.71 - 9.20			315,030				5.47				9.16				101,572				9.10
9.53 - 9.53			850,000				5.18				9.53				229,374				9.53
9.65 - 13.61			355,130				6.07				11.64				18,218				12.58
13.65 - 14.80			203,000				4.80				14.15				110,087				14.31
15.12 - 15.12			10,000				2.62				15.12				10,000				15.12
16.57 - 16.57			100,000				2.74				16.57				100,000				16.57
$2.70 - $16.57			3,486,157				4.85			$	8.30				2,023,024			$	7.18

Additional information regarding market condition based stock options outstanding as of December 31, 2014 is as follows:

		Options Outstanding												Options Exercisable
Range of Exercise   Prices		Number Outstanding				Weighted Average Remaining Contractual Life (Years)				Weighted Average Exercise Price				Number Exercisable				Weighted Average Exercise Price
$  11.94 - $11.94			50,000				6.15			$	11.94				0			$	0.00

Schedule of Restricted Stock Units Activity

RSU activity for the years ended December 31, 2014, 2013, and 2012 was as follows:

		Number      of Shares				Weighted Average Grant Date     Fair Value				Fair Value of Released RSU’s      (In thousands)
Outstanding at January 1, 2012			407,765
Awarded			555,911			$	6.64
Released			(203,519	)						$	1,128
Forfeited			(51,506	)
Outstanding at December 31, 2012			708,651
Awarded			294,150				7.12
Released			(303,882	)							2,806
Forfeited			(30,863	)
Outstanding at December 31, 2013			668,056
Awarded			265,630				11.35
Released			(317,970	)							3,491
Forfeited			(50,825	)
Outstanding at December 31, 2014			564,891

Schedule of Information Regarding Restricted Stock Units Outstanding

Information regarding RSU’s at December 31, 2014, 2013, and 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
December 31, 2013
RSUs outstanding			668,056				0.91			$	6.9			$	6.9
RSUs vested and expected to vest using estimated forfeiture rates			583,711				0.89			$	6.1
December 31, 2014
RSUs outstanding			564,891				0.84			$	5.3			$	5.3
RSUs vested and expected to vest using estimated forfeiture rates			502,411				0.80			$	4.8

Schedule of Restricted Stock Awards Activity

Restricted stock award activity for the years ended December 31, 2014, 2013, and 2012 was as follows:

		Number      of Shares				Weighted Average Grant Date Fair Value				Total Fair Value of Awards Released (In thousands)
Outstanding at January 1, 2012			18,000			$	6.61
Awarded			57,750				5.70
Released			(31,750	)			6.72			$	171
Forfeited			0
Outstanding at December 31, 2012			44,000				5.34
Awarded			44,000				14.09
Released			(44,000	)			5.34				676
Forfeited			0
Outstanding at December 31, 2013			44,000				14.09
Awarded			35,364				10.97
Released			(44,000	)			14.09				483
Forfeited			0
Outstanding at December 31, 2014			35,364				10.97

Schedule of Stock Options, Market Condition Based Stock Options and Employee Stock Purchase Plan, Valuation Assumptions

The assumptions used to value option grants under the Company’s stock plans are as follows:

		Standard Stock Options
		2014				2013				2012
Expected life (in years)			4.7				4.9				4.5
Interest rate			1.4	%			0.8	%			0.7	%
Volatility			57	%			70	%			70	%
Dividend yield			0.0	%			0.0	%			0.0	%

		Market Condition Based Stock Options
		2014
Expected life (in years)			7.0
Interest rate			2.2	%
Volatility			66	%
Dividend yield			0.0	%

		Employee Stock Purchase Plan
		2014				2013				2012
Expected life (in years)			0.5				0.5				0.5
Interest rate			0.1	%			0.1	%			0.1	%
Volatility			43	%			67	%			62	%
Dividend yield			0.0	%			0.0	%			0.0	%

Schedule of Stock-Based Compensation

Total stock-based compensation recognized in the consolidated statements of operations is as follows:

		Year Ended December 31,
		2014				2013				2012
Income Statement Classifications		(In thousands)
Sales and marketing		$	1,117			$	747			$	547
Research and development			1,267				1,040				756
General and administrative			2,911				2,857				1,843
Total		$	5,295			$	4,644			$	3,146

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