Net Loss Per Share

3 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Net Loss Per Share

5. Net Loss Per Share

Basic loss per common share is computed by dividing net loss applicable to common stockholders by the weighted-average number of common shares outstanding for the period.  Diluted loss per common share reflects the potential dilution from the exercise or conversion of securities into common stock.  Potentially dilutive stock options and other share-based awards excluded from dilutive loss per share because their effect was anti-dilutive totaled 12,501,347 and 10,454,065 at March 31, 2017 and 2016, respectively.