Note 4 - Basic and Diluted Loss Per Common Share

3 Months Ended

Mar. 31, 2021

4.	Basic and Diluted Loss Per Common Share

Basic and diluted loss per common share are computed based on the weighted average number of common shares outstanding. Common share equivalents consist of common shares issuable upon conversion of convertible preferred stock, and upon exercise of stock options and stock purchase warrants. All common share equivalents are excluded from the computation of diluted loss per share since the effect would be anti-dilutive. The weighted average number of common share equivalents which were excluded from the computation of diluted loss per share, totaled

3,055,097

and

48,529

shares at

March 31, 2021

and

2020,

respectively.