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Net Loss Per Share | 6 Months Ended
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Jun. 28, 2015
Earnings Per Share [Abstract] |
Net loss per share | Net Loss Per Share Basic loss per share is computed by dividing net loss available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share was computed using the weighted average number of common shares outstanding during the period plus potentially dilutive common shares outstanding during the period under the treasury stock method. In computing diluted net income (loss) per share, the weighted average stock price for the period is used in determining the number of shares assumed to be purchased from the exercise of stock options and warrants. The following shares were not included in the calculation of diluted net loss per share for the second quarter and six months ended June 28, 2015 and June 29, 2014: (i) 7.1 million and 6.6 million of common shares associated with equity awards outstanding and the estimated number of shares to be purchased under the current offering period of the 2009 Employee Stock Purchase Plan, respectively, and (ii) warrants to purchase up to 2.3 million as of June 28, 2015 and 4.2 million as of June 29, 2014 shares of common stock respectively. These shares were not included as they were considered antidilutive due to the net loss the Company experienced during these periods.

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