Net Loss Per Common Share

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Net Loss Per Common Share

3.    Net Loss Per Common Share

Basic and dilutive net loss per common share were as follows:

	Quarters Ended March 31,
	2023		2022
Net loss applicable to common stockholders	$	(1,574,174)	$	(958,562)
Weighted average number of common shares outstanding, basic	7,689,226		6,879,348
Weighted average number of common shares outstanding, dilutive	7,689,226		6,879,348
Net loss per common share applicable to common stockholders, basic and diluted	$	(0.20)	$	(0.14)

Shares underlying the following potentially dilutive weighted average number of common stock equivalents were excluded from the calculation of diluted net loss per common share because their effect was anti-dilutive for each of the periods presented: 

	Quarters Ended March 31,
	2023	2022
Options	525,462	510,256
Unvested restricted stock awards	85,962	47,500
Unvested restricted stock units	179,812	—
Convertible preferred stock	62	62
Total	791,298	557,818

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Quarters Ended March 31,
	2023		2022
Net loss applicable to common stockholders	$	(1,574,174)	$	(958,562)
Weighted average number of common shares outstanding, basic	7,689,226		6,879,348
Weighted average number of common shares outstanding, dilutive	7,689,226		6,879,348
Net loss per common share applicable to common stockholders, basic and diluted	$	(0.20)	$	(0.14)