Net Loss per Common Share (Tables)

6 Months Ended

Jun. 30, 2017

Net Loss per Common Share

Computation of basic and diluted net loss per common share

	Three months ended June 30,				Six months ended June 30,
	2017		2016		2017		2016
Basic and diluted net loss per common share:
Net loss	$	(7,084,316)	$	(6,812,190)	$	(15,079,355)	$	(12,678,131)
Weighted average common shares outstanding—basic and diluted		23,595,702		19,149,417		21,578,011		19,149,417
Net loss per common share—basic and diluted	$	(0.30)	$	(0.36)	$	(0.70)	$	(0.66)

Schedule of potentially dilutive securities

	June 30,
	2017	2016
Stock options	2,169,540	1,760,570
Warrants	249,797	272,468
Total	2,419,337	2,033,038