Net Loss Per Share

12 Months Ended

Dec. 31, 2017

14. 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,
		2017		2016
Net loss	$	(5,887,410)	$	(5,286,720)
Deemed dividend on convertible preferred stock		—		(6,145,402)
Cumulative dividend on convertible preferred stock		(1,432,259)		(368,152)
Net loss attributable to common stockholders	$	(7,319,669)	$	(11,800,274)

Weighted average number of common shares and equivalents:		22,614,248		21,807,634
Basic EPS	$	(0.32)	$	(0.54)
Diluted EPS	$	(0.32)	$	(0.54)

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,
	2017	2016
Shares issuable upon vesting/exercise of:
Options to purchase common stock	413,301	671,887
Series A Convertible Preferred Stock and Accumulated Dividends	39,537,501	37,335,618
Restricted stock units	680,363	1,167,099
Warrants	38,779,119	38,963,443
	79,410,284	78,138,047