11. (Loss) Income per Share

Basic and diluted net loss per share is presented in conformity with ASC Topic 260, Earnings per Share, (“ASC Topic 260”) for all periods presented. In accordance with ASC Topic 260, basic and diluted net loss per common share was determined by dividing net loss applicable to common stockholders by the weighted-average common shares outstanding during the period. In addition, the net loss attributable to common stockholders’ is adjusted for the preferred stock deemed dividends related to the beneficial conversion feature on this instrument for the periods in which the preferred stock is outstanding. The following table sets forth the computation of basic and diluted net loss per share for the periods indicated:

	Three months ended					Six months ended
Basic net (loss) income per common share	June 30, 2018			June 30, 2017		June 30, 2018			June 30, 2017
Numerator:
Net (loss) income	$	(4,029,075	)	$	2,049,960	$	(6,719,563	)	$	(5,568,666	)
Preferred stock deemed dividend	—			—		—			—

Net loss attributable to common stockholders	$	(4,029,075	)	$	2,049,960	$	(6,719,563	)	$	(5,568,666	)


Denominator:
Weighted average common shares outstanding	10,664,066			7,506,702		10,395,581			6,123,294

Net loss per share of common stock—basic and diluted	$	(0.38	)	$	0.27	$	(0.65	)	$	(0.91	)

The following outstanding securities at June 30, 2018 and 2017 have been excluded from the computation of diluted weighted shares outstanding, as they would have been anti-dilutive:

	Six months ended June 30, 2018	Six months ended June 30, 2017
Common shares issuable upon conversion of Series A preferred stock	222,867	270,867
Common shares issuable upon conversion of Series B preferred stock	—	33,390
Stock options	852,232	810,148
Warrants	1,426,848	1,426,848
Convertible debt	533,539	—

Total	3,035,486	2,541,253

The liability classified warrants disclosed above been excluded from the computation of diluted earnings per share because their exercise price exceeds the average market price of the Company’s common stock for the period they were outstanding.