Stockholders' Equity

9 Months Ended

Sep. 30, 2013

Equity [Abstract]

Stockholders' Equity

(12) Stockholders’ Equity

During the nine months ended September 30, 2013, the Company issued 3,780,945 shares of common stock in connection with purchases under the Company’s 1995 Employee Stock Purchase Plan (the “ESPP”) and warrant and stock option exercises resulting in total proceeds to the Company of $1,864,000.

During the nine months ended September 30, 2012, the Company issued 3,006 shares of common stock in connection with employee stock purchases under the ESPP, which resulted in total proceeds to the Company of $3,000.

See Notes 3, 4 and 13 for more information on changes in stockholders’ equity during the nine months ended September 30, 2013.