Net Loss per Common Share Applicable to Common Stockholders

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Net Loss per Common Share Applicable to Common Stockholders

(11) Net Loss per Common Share Applicable to Common Stockholders

For the three and nine months ended September 30, 2013 and 2012, basic and diluted net loss per common share applicable to common stockholders is computed using the weighted average number of shares of common stock outstanding during the period. Diluted net loss per common share applicable to common stockholders is the same as basic net loss per common share applicable to common stockholders as the effects of the Company’s potential common stock equivalents are antidilutive. Total antidilutive securities were 87,624,124 and 16,021,649 for the nine months ended September 30, 2013 and 2012, respectively, and consist of stock options, preferred stock and warrants.

For the three and nine months ended September 30, 2013, net loss per common share applicable to common stockholders reflects $278,000 and $837,000, respectively, in dividends accrued on shares of Series D preferred stock and Series E preferred stock. For the nine months ended September 30, 2013, net loss per common share applicable to common stockholders reflects $1,750,000 related to the loss on extinguishment of the Series D preferred stock and the Series E preferred stock that the Company issued in November 2011 and November 2012, respectively, that has been charged to net loss applicable to common stockholders as a preferred stock dividend. For the three and nine months ended September 30, 2012, net loss per common share applicable to common stockholders reflects $160,000 and $480,000, respectively, in dividends accrued on shares of Series D preferred stock.