EQUITY-BASED COMPENSATION (Tables)

6 Months Ended

Jun. 30, 2013

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

Schedule of Equity-based Compensation Expense for Restricted Stock Awards and Non-Qualified Stock Options

The following table presents total equity-based compensation expense for restricted stock awards included in the line items below in our condensed consolidated statements of operations (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Cost of revenues	$	142	$	148	$	302	$	267
Selling and marketing	539		424		1,141		784
Research and development	224		135		429		276
General and administrative	1,057		1,395		1,764		2,857
Equity-based compensation expense	$	1,962	$	2,102	$	3,636	$	4,184

Schedule of Unvested Restricted Stock Awards

The following table summarizes the activity of unvested restricted stock awards under our stock plans from December 31, 2012 to June 30, 2013:

	Shares		Weighted-Average Grant Date Fair Value
Unvested at December 31, 2012	1,764,672		$	8.50
Granted	650,490		11.10
Vested/released	(475,306	)	8.42
Forfeited	(54,165	)	8.26
Unvested at June 30, 2013	1,885,691		$	9.43

Summary of Stock Options Activity

The following table summarizes the stock options activity under our stock plans from December 31, 2012 to June 30, 2013:

	Options		Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Options outstanding at December 31, 2012	87,168		$	11.23
Granted	—		—
Exercised	—		—
Expired	(74,668	)	11.33
Options outstanding and exercisable at June 30, 2013	12,500		$	10.69	1.45	$	17,225