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COMMON STOCK AND STOCK INCENTIVE PLANS (Tables)

12 Months Ended

Dec. 31, 2013

COMMON STOCK AND STOCK INCENTIVE PLANS

Summary of stock options activity

		Number of shares outstanding			Weighted average exercise price
		(in thousands)
Options Outstanding, December 31, 2010			1,388		$	15.06
​	​	​	​	​	​	​	​
Options Granted			486			36.78
Options Exercised			(20	)		6.27
Options Forfeited or Expired			(728	)		16.71
​	​	​	​	​	​	​	​
Options Outstanding, December 31, 2011			1,127			23.52
​	​	​	​	​	​	​	​
Options Granted			246			3.24
Options Exercised			—			—
Options Forfeited or Expired			(443	)		19.56
​	​	​	​	​	​	​	​
Options Outstanding, December 31, 2012			930			20.04
​	​	​	​	​	​	​	​
Options Granted			—			—
Options Exercised			—			—
Options Forfeited or Expired			(354	)		18.05
​	​	​	​	​	​	​	​
Options Outstanding, December 31, 2013			576		$	21.25
​	​	​	​	​	​	​	​
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Summary of unvested restricted awards

		Shares			Weighted average grant date fair value
		(in thousands)
Restricted stock awards activity
Total nonvested at January 1, 2011			521		$	7.05
​	​	​	​	​	​	​	​
Granted			767		$	5.58
Vested			(333	)	$	6.87
Forfeited			(53	)	$	6.99
​	​	​	​	​	​	​	​
Total nonvested at December 31, 2011			902		$	5.87
​	​	​	​	​	​	​	​
Granted			1,891		$	3.29
Vested			(701	)	$	5.60
Forfeited			(390	)	$	4.49
​	​	​	​	​	​	​	​
Total nonvested at December 31, 2012			1,702		$	3.43
​	​	​	​	​	​	​	​
Reverse split adjustment			25			—
Granted			679		$	2.76
Vested			(520	)	$	3.72
Forfeited			(173	)	$	3.82
​	​	​	​	​	​	​	​
Total nonvested at December 31, 2013			1,713		$	3.08
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​

Summary of significant ranges of outstanding and exercisable stock options

The following table summarizes significant ranges of outstanding and exercisable stock options as of December 31, 2013 (in thousands, except years and share prices):

Range of Exercise Price						Numbers Outstanding as of Dec. 31, 2013			Weighted Average Remaining Contractual Term			Weighted Average Exercise Price			Numbers Exercisable as of Dec. 31, 2013			Weighted Average Exercise Price
$	2.97		$	2.97			27			5.83		$	2.97			7		$	2.97
$	3.21		$	3.21			202			5.65		$	3.21			57		$	3.21
$	4.14		$	4.17			73			4.79		$	4.16			44		$	4.16
$	6.51		$	8.70			59			2.90		$	7.12			53		$	7.19
$	9.72		$	9.72			50			1.25		$	9.72			50		$	9.72
$	18.75		$	18.75			80			2.13		$	18.75			80		$	18.75
$	19.83		$	63.48			7			1.68		$	24.77			7		$	24.77
$	79.02		$	79.02			2			0.32		$	79.02			2		$	79.02
$	89.70		$	89.70			1			0.28		$	89.70			1		$	89.70
$	112.38		$	112.38			75			0.05		$	112.38			75		$	112.38
	Total						576			3.60		$	21.26			376		$	30.72
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

	Options exercisable at December 31, 2013						376					$	30.72
	Options expected to vest at December 31, 2013						200					$	3.46

Summary of the stock-based compensation expense recognized in the Company's Consolidated Statement of Operations

		Years ended December 31,
		2013			2012			2011
		(in thousands)
Cost of net sales		$	7		$	107		$	99
Selling, general and administrative			1,597			2,399			2,602
Research and development			94			476			328
​	​	​	​	​	​	​	​	​	​	​
Total		$	1,698		$	2,982		$	3,029
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​

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