Net Loss per Share (Tables)

12 Months Ended

Dec. 31, 2020

Net loss per share attributable to common stockholders:

Schedule of Computation of Basic and Diluted Earnings Per Share

The following is a reconciliation of the numerator (net loss) and the denominator (number of shares) used in the basic and diluted earnings per share calculations:

	Year Ended December 31,
	2020			2019
Net loss	$	(6,646,459	)	$	(4,591,284	)
Cumulative dividend on Series A Convertible Preferred Stock		(1,369,421	)		(1,429,400	)
Net loss attributable to common stockholders	$	(8,015,880	)	$	(6,020,684	)
Weighted average number of common shares and equivalents:		72,746,268			63,051,581
Basic EPS	$	(0.11	)	$	(0.10	)
Diluted EPS	$	(0.11	)	$	(0.10	)

Schedule of Anti-Dilutive Securities Excluded From Computation of Diluted Earnings Per Share

The following table sets forth the number of common shares that were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive as follows:

	December 31,
	2020		2019
Shares issuable upon vesting/exercise of:
Options to purchase common stock		2,456,979		1,857,599
Series A Convertible Preferred Stock and Accumulated Dividends		43,483,062		42,497,068
Series B Convertible Preferred Stock		5,610,121		5,610,121
Restricted stock units		1,112,473		840,712
Warrants		15,385		46,155
		52,678,020		50,851,655