Net Loss per Common Share	6 Months Ended
Jun. 30, 2021
Earnings Per Share [Abstract]
Net Loss per Common Share	Note 6. Net Loss per Common Share Basic loss per share is calculated based upon the net loss available to common shareholders divided by the weighted average number of common shares outstanding during the period. Diluted loss per share is calculated after adjusting the denominator of the basic earnings per share computation for the effects of all dilutive potential common shares outstanding during the period. The dilutive effects of preferred stock, options and warrants and their equivalents are computed using the treasury stock method. The total number of shares of common stock issuable upon exercise of warrants, stock option grants and equity awards were 9,325,228 and 8,560,124 shares for the three and six-month periods ended June 30, 2021 and 2020, respectively. Warrants with an exercise price of $0.01 exercisable for 200,000 shares of common stock were considered issued in calculating basic loss per share during the first six-months of 2020. These warrants were exercised in October 2020. For the three and six-month periods ended June 30, 2021 and 2020, diluted loss per common share was the same as basic loss per common share as the other warrants and equity awards that were convertible into shares of the Company’s common stock were excluded from the calculation of diluted loss per common share as their effect would have been anti-dilutive. The Company did not pay any dividends during the first six months of 2021 or 2020.

Net Loss per Common Share

6 Months Ended

Jun. 30, 2021

Note 6. Net Loss per Common Share

Basic loss per share is calculated based upon the net loss available to common shareholders divided by the weighted average number of common shares outstanding during the period. Diluted loss per share is calculated after adjusting the denominator of the basic earnings per share computation for the effects of all dilutive potential common shares outstanding during the period. The dilutive effects of preferred stock, options and warrants and their equivalents are computed using the treasury stock method.

The total number of shares of common stock issuable upon exercise of warrants, stock option grants and equity awards were 9,325,228 and 8,560,124 shares for the three and six-month periods ended June 30, 2021 and 2020, respectively. Warrants with an exercise price of $0.01 exercisable for 200,000 shares of common stock were considered issued in calculating basic loss per share during the first six-months of 2020. These warrants were exercised in October 2020. For the three and six-month periods ended June 30, 2021 and 2020, diluted loss per common share was the same as basic loss per common share as the other warrants and equity awards that were convertible into shares of the Company’s common stock were excluded from the calculation of diluted loss per common share as their effect would have been anti-dilutive. The Company did not pay any dividends during the first six months of 2021 or 2020.