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Net Loss Per Share
9 Months Ended
Sep. 30, 2011
Net Loss Per Share 
Net Loss Per Share
Note 2: 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 52,686,158 and 53,809,659 shares, are excluded from the calculation of diluted net loss per share for the nine months ended September 30, 2010 and 2011, respectively, since their effect is antidilutive.