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COMMON STOCK AND STOCK INCENTIVE PLANS (Tables) | 12 Months Ended
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Dec. 31, 2016
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, 2013 |  | 576 |  | $ | 21.25 |
Options Granted |  | 127 |  | 2.83 |
Options Exercised |  | — |  | — |
Options Forfeited or Expired |  | (145 | ) | 62.79 |
Options Outstanding, December 31, 2014 |  | 558 |  | $ | 6.33 |
Options Granted |  | — |  | — |
Options Exercised |  | (12 | ) | 3.48 |
Options Forfeited or Expired |  | (131 | ) | 7.30 |
Options Outstanding, December 31, 2015 |  | 415 |  | $ | 6.11 |
Options Granted |  | 267 |  | 2.24 |
Options Exercised |  | — |  | — |
Options Forfeited or Expired |  | (77 | ) | 18.79 |
Options Outstanding, December 31, 2016 |  | 605 |  | $ | 2.78 |
Summary of unvested restricted awards |
|  | Shares |  | Weighted average grant date fair value |
|  | (in thousands) |  |  |
Total nonvested restricted stock at December 31, 2013 |  | 1,713 |  | $ | 3.08 |
Granted |  | 808 |  | $ | 2.76 |
Vested |  | (603 | ) | $ | 3.15 |
Forfeited |  | (437 | ) | $ | 3.02 |
Total nonvested restricted stock at December 31, 2014 |  | 1,481 |  | $ | 2.90 |
Granted |  | 422 |  | $ | 2.47 |
Vested |  | (427 | ) | $ | 3.07 |
Forfeited |  | (420 | ) | $ | 2.76 |
Total nonvested restricted stock at December 31, 2015 |  | 1,056 |  | $ | 2.72 |
Granted |  | 1,124 |  | $ | 2.19 |
Vested |  | (624 | ) | $ | 2.77 |
Forfeited |  | (118 | ) | $ | 2.70 |
Total nonvested restricted stock at December 31, 2016 |  | 1,438 |  | $ | 2.28 |
Summary of significant ranges of outstanding and exercisable stock options |
|  |  |  | Weighted |  |  |  |  |  |  |
|  | Number |  | Average |  | Weighted |  | Number |  | Weighted |
Range of |  | Outstanding |  | Remaining |  | Average |  | Exercisable |  | Average |
Exercise Prices |  | as of 12/31/16 |  | Contractual Term |  | Exercise Price |  | as of 12/31/16 |  | Exercise Price |
$ | 2.24 |  | $ | 2.24 |  | 266,600 |  | 6.08 |  | $ | 2.24 |  | 0 |  | $ | 0.00 |
$ | 2.70 |  | $ | 2.70 |  | 26,666 |  | 7.91 |  | $ | 2.70 |  | 13,334 |  | $ | 2.70 |
$ | 2.87 |  | $ | 2.87 |  | 100,000 |  | 7.64 |  | $ | 2.87 |  | 50,000 |  | $ | 2.87 |
$ | 2.97 |  | $ | 2.97 |  | 26,666 |  | 2.83 |  | $ | 2.97 |  | 26,666 |  | $ | 2.97 |
$ | 3.21 |  | $ | 3.21 |  | 166,666 |  | 0.03 |  | $ | 3.21 |  | 166,666 |  | $ | 3.21 |
$ | 4.17 |  | $ | 4.17 |  | 2,721 |  | 1.67 |  | $ | 4.17 |  | 2,721 |  | $ | 4.17 |
$ | 6.51 |  | $ | 6.51 |  | 15,361 |  | 0.75 |  | $ | 6.51 |  | 15,361 |  | $ | 6.51 |
$ | 2.24 |  | $ | 6.51 |  | 604,680 |  | 4.45 |  | $ | 2.78 |  | 274,748 |  | $ | 3.29 |
|  | Number of shares |  | Weighted average exercise price |
Options exercisable at December 31, 2016 |  | 274,748 |  | $ | 3.29 |
Options vested and expected to vest at December 31, 2016 |  | 604,680 |  | $ | 2.78 |
Summary of the assumptions used in the estimating the fair values of stock-based payment awards excluding non-employee |
|  | Years ended December 31, |
Stock Options: |  | 2016 |  | 2015 |  | 2014 |
Expected term in years |  | 4.75 |  | 4.75 |  | 4.75 |
Weighted average risk-free interest rate |  | 1.29 | % | 1.5 | % | 1.5 | %
Expected dividend rate |  | 0 | % | 0 | % | 0 | %
Volatility |  | 51.60 | % | 72.7 | % | 72.7 | %
Summary of the stock-based compensation expense recognized in the Company's Consolidated Statement of Operations |
|  | Years ended December 31, |
|  | 2016 |  | 2015 |  | 2014 |
|  | (in thousands) |
Cost of net sales |  | $ | 1 |  | $ | 40 |  | $ | 60 |
Selling, general and administrative |  | 2,193 |  | 1,392 |  | 2,185 |
Research and development |  | 44 |  | 114 |  | 44 |
Total |  | $ | 2,238 |  | $ | 1,546 |  | $ | 2,289 |

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