Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2017

Reconciliation of Numerator and Denominator Used in Computing Basic and Diluted Net Loss per Share

The following table provides a reconciliation of the numerator and denominator used in computing basic and diluted net loss per share for the periods presented:

	Years Ended December 31,
	2017			2016
Numerator:
Net loss	$	(18,960,017	)	$	(26,039,550	)
Denominator:
Weighted-average shares outstanding-basic and diluted		10,597,318			7,113,075
Net loss per share, basic and diluted	$	(1.79	)	$	(3.66	)

Outstanding Options, Warrants, Restricted Stock Units and Debt Conversion Option Excluded from Computation of Diluted Net Loss per Share

The following outstanding options, warrants, restricted stock units and debt conversion option were excluded from the computation of diluted net loss per share for the periods presented because their effect would have been anti-dilutive:

	Years Ended December 31,
	2017		2016
Options to purchase common stock		1,517,771		1,161,705
Common stock warrants		219,723		219,723
Restricted stock units		26,666		355,499
QNAH Convertible Note		755,178		-