(Loss) Income per Share (Tables)

6 Months Ended

Jun. 30, 2018

(Loss) Income per Share

Schedule of computation of basic and diluted net loss per share

	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	)

Schedule of outstanding securities excluded from the computation of diluted weighted shares outstanding

	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