Net Loss Per Share

12 Months Ended

Dec. 31, 2018

Net loss per share attributable to common stockholders:

Net Loss Per Share

13. Net Loss 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:

	Twelve months ended December 31,
	2018			2017
Net income (loss)	$	116,756		$	(5,887,410	)
Deemed dividend on convertible preferred stock		—			—
Cumulative dividend on convertible preferred stock		(1,434,000	)		(1,432,259	)
Net loss attributable to common stockholders	$	(1,317,244	)	$	(7,319,669	)
Weighted average number of common shares and equivalents:		52,082,618			22,614,248
Basic EPS	$	(0.03	)	$	(0.32	)
Diluted EPS	$	(0.03	)	$	(0.32	)

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,
	2018		2017
Shares issuable upon vesting/exercise of:
Options to purchase common stock		1,165,086		413,301
Series A Convertible Preferred Stock and Accumulated Dividends		41,743,654		39,537,501
Restricted stock units		647,649		680,363
Warrants		1,131,151		38,779,119
		44,687,540		79,410,284