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COMMON STOCK AND STOCK INCENTIVE PLANS (Tables) | 12 Months Ended
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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 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
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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