Net Loss Per Common Share

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Net Loss Per Common Share

Basic net loss per common share is calculated by dividing the net loss by the weighted average number of outstanding common shares during the period. Diluted net loss per common share includes the weighted average dilutive effect of stock options and warrants. Potential common shares outstanding as of September 30, 2017 and 2016:

	September 30, 2018		September 30, 2017
Warrants		2,000,000		2,060,000
Options		2,222,000		2,147,000
		4,222,000		4,207,000

The number of securities not included in the diluted net loss per share for the three and nine months ended September 30, 2018 was 4,222,000, as their effect would have been anti-dilutive due to the net loss in each period.

The number of securities not included in the diluted net loss per share for the three and nine months ended September 30, 2017 was 4,207,000, as their effect would have been anti-dilutive due to the net loss in each period.