Loss per Share	9 Months Ended
Sep. 30, 2013
Loss per Share
Loss per Share	11. Loss per Share Basic and diluted net loss per share is presented in conformity with ASC Topic 260, Earnings per Share , (“ASC Topic 260”) for all periods presented. In accordance with ASC Topic 260, basic and diluted net loss per common share was determined by dividing net loss applicable to common stockholders by the weighted-average common shares outstanding during the period. Diluted weighted-average shares are the same as basic weighted-average shares because shares issuable pursuant to the exercise of stock options would be antidilutive. For the three and nine months ended September 30, 2013 the effect of 11,281,244 outstanding stock options and 5,647,203 warrants were excluded from the calculation of diluted loss per share because the effect was antidilutive. For the three and nine months ended September 30, 2012, 7,131,039 outstanding stock options and 5,647,203 warrants were excluded from the calculation of diluted loss per share because the effect was antidilutive.

Loss per Share

9 Months Ended

Sep. 30, 2013

11. Loss per Share

Basic and diluted net loss per share is presented in conformity with ASC Topic 260, Earnings per Share , (“ASC Topic 260”) for all periods presented. In accordance with ASC Topic 260, basic and diluted net loss per common share was determined by dividing net loss applicable to common stockholders by the weighted-average common shares outstanding during the period. Diluted weighted-average shares are the same as basic weighted-average shares because shares issuable pursuant to the exercise of stock options would be antidilutive.

For the three and nine months ended September 30, 2013 the effect of 11,281,244 outstanding stock options and 5,647,203 warrants were excluded from the calculation of diluted loss per share because the effect was antidilutive. For the three and nine months ended September 30, 2012, 7,131,039 outstanding stock options and 5,647,203 warrants were excluded from the calculation of diluted loss per share because the effect was antidilutive.