Net Loss per Common Share (Tables)

3 Months Ended

Mar. 31, 2019

Net Loss per Common Share

Computation of basic and diluted net loss per common share

	Three months ended March 31,
	2019		2018
Basic and diluted net loss per common share:
Net loss	$	(10,640,376)	$	(4,805,559)
Weighted average common shares outstanding—basic and diluted		33,052,468		25,501,188
Net loss per common share—basic and diluted	$	(0.32)	$	(0.19)

Schedule of potentially dilutive securities

	March 31,
	2019	2018
Stock options	3,100,209	2,760,862
Warrants	181,369	2,099,149
Total	3,281,578	4,860,011