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Net Loss Per Share
12 Months Ended
Dec. 31, 2022
Earnings Per Share [Abstract]  
Net Loss Per Share

Note 14 – Net Loss Per Share

 

The following table summarizes the number of potentially dilutive common stock equivalents excluded from the calculation of diluted net loss per common share as of December 31, 2022 and 2021. Warrants exercisable for nominal consideration are included in the number of common shares outstanding to calculate net loss per common share.

 

   2022   2021 
   December 31, 
   2022   2021 
Shares of common stock issuable upon exercise of warrants   4,593,000    4,553,000 
Shares of common stock issuable upon exercise of options and restricted stock units   4,194,000    3,844,000 
Potentially dilutive common stock equivalents excluded from diluted net loss per share   8,787,000    8,397,000