Note 4 - Basic and Diluted Loss Per Common Share

3 Months Ended

Mar. 31, 2019

Notes to Financial Statements

Earnings Per Share [Text Block]

4.

     Basic and Diluted Loss Per Common Share

Basic net loss per share is computed using the weighted-average number of common shares outstanding during the period. Diluted net loss per share is computed using the weighted-average number of common shares and potentially dilutive common share equivalents outstanding during the period. Potentially dilutive common share equivalents consist of convertible preferred stock, stock options and stock purchase warrants. Common share equivalents which potentially could dilute basic earnings per share in the future, and which were excluded from the computation of diluted loss per share, as the effect would be anti-dilutive, totaled approximately

589,000

and

446,000

shares at

March 31, 2019

and

2018,

respectively.