Net Loss Per Share

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Net Loss Per Share

Net Loss Per Share

Basic and diluted net loss per share is computed using the weighted average number of shares of common stock outstanding during the period. Equivalent common shares, consisting of stock options and warrants which amounted to 37,071,415 and 23,988,158 shares for the six months ended June 30, 2013 and 2012, respectively, are excluded from the calculation of diluted net loss per share since their effect is anti-dilutive.