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Loss Per Common Share
12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Loss Per Common Share

(14)

Loss Per Common Share

Basic earnings (loss) per common share is based on the weighted average number of common shares outstanding for the year ended December 31, 2018 and 2017. Diluted earnings (loss) per common share is based on the weighted average number of common shares outstanding, plus the incremental shares that would have been outstanding upon the assumed exercise of all potentially dilutive stock options and other units subject to anti-dilution limitations. Potentially dilutive securities not considered in the calculation of diluted earnings per share because losses caused their effect is anti-dilutive, are as follows at December 31, 2018 and 2017:

 

 

 

Year Ended December 31,

 

 

 

2018

 

 

 

2017

 

Convertible preferred stock

 

2,212,389

 

 

 

2,212,389

 

Stock warrants

 

825,000

 

 

 

825,000

 

Restricted units

 

5,031

 

 

 

165,210

 

 

 

3,042,420

 

 

 

3,202,509