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Net Loss Per Share Net Loss Per Share (Policies)
6 Months Ended
Jun. 30, 2015
Earnings Per Share [Abstract]  
Net Loss Per Share Policy
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 17,228,280 and 23,730,334 shares for the six months ended June 30, 2015 and 2014, respectively, are excluded from the calculation of diluted net loss per share since their effect is anti-dilutive.