Note 4 - Basic and Diluted Loss Per Common Share

6 Months Ended

Jun. 30, 2021

Notes to Financial Statements

Earnings Per Share [Text Block]

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 583,336 and 503,785 shares for the three-month and six-month periods ended June 30, 2021, respectively, as compared to 67,009 and 55,191 shares for the three-month and six-month periods ended June 30, 2020, respectively.