Net Income (Loss) Per Share

6 Months Ended

Jun. 30, 2013

Net Income (Loss) Per Share

Net Income (Loss) Per Share

7. Net Income (Loss) Per Share

Basic net income (loss) per share is computed by dividing net income (loss) attributable to common stockholders for the period by the weighted average number of common shares outstanding for the period.  Diluted net income (loss) per share is computed by dividing the net income (loss) attributable to common stockholders by the weighted average number of common shares and dilutive common stock equivalents outstanding for the period.  Our common stock equivalents include all common stock issuable upon conversion of preferred stock and the exercise of outstanding options and warrants.  The aggregate number of common stock equivalents excluded from the diluted income (loss) per share calculation for the three month periods ended June 30, 2013 and 2012 are 1,408,018 and 1,133,923 as they are antidilutive.  The aggregate number of common stock equivalents excluded from the diluted income (loss) per share calculation for the six month periods ended June 30, 2013 and 2012 are 1,433,265 and 4,060,705 as they are antidilutive.