Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2014

Stockholders' Equity [Abstract]

Schedule of Stock-based Compensation Expense

	Year Ended December 31,
		2014			2013			2012
Component of income (loss) before provision for income taxes:
Cost of revenue	$	313		$	190		$	291
Research and development, net		334			120			126
Selling, general and administrative		24			(49)			136
Stock-based compensation expense		671			261			553
Income tax benefits related to stock-based compensation (before consideration of valuation allowance)		(244	)		(92	)		(196	)
Stock-based compensation, net of taxes	$	427		$	169		$	357

Schedule of Stock Option Activity

	Number of options			Weighted average exercise price per option
	(in thousands)
Outstanding at December 31, 2013	1,124		$	6.30
Granted	125			10.89
Exercised	(40	)		4.56
Cancelled or expired	(79	)		5.98
Outstanding at December 31, 2014	1,130			6.89
Options exercisable at December 31, 2014	185			14.82

	Number of options			Weighted average exercise price per option
	(in thousands)
Outstanding at December 31, 2012	364		$	15.51
Granted	895			4.48
Exercised	(19	)		4.35
Cancelled or expired	(116	)		21.49
Outstanding at December 31, 2013	1,124			6.30
Options exercisable at December 31, 2013	203		$	12.08

	Number of options			Weighted average exercise price per option
	(in thousands)
Outstanding at December 31, 2011	364		$	15.55
Granted	5			12.91
Exercised	(1	)		5.58
Cancelled or expired	(4	)		17.00
Outstanding at December 31, 2012	364			15.51
Options exercisable at December 31, 2012	251		$	13.07

Schedule of Options Outstanding and Exercisable by Exercise Price Range

Options Outstanding:

	Range of Exercise Prices	Number of Shares (In thousands)	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (In years)
$	4.35-13.2	1,038	$	5.43		5.64
$	21-28.2	92	$	23.52		2.78
		1,130	$	6.89		5.41

Options Exercisable:

	Range of Exercise Prices	Number of Shares (In thousands)	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (In years)
$	$ 4.35-13.2	93	$	6.24		2.30
$	$ 21-28.2	92	$	23.52		2.78
		185	$	14.82		2.54

Summary of Options Exercised

	Year Ended December 31,
		2014	2013		201 2
The intrinsic value of options exercised	$	209	$	31	$	5
Cash received from the exercise of stock options		181		82		4
The tax benefit realized from stock options exercised		76		10		2
The fair value of options  exercised	$	250	$	124	$	3