Loss Per Share Applicable to Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share Tables

Earnings Per Share

	Years Ended
	2016			2015			2014
Net loss	$	(2,928,185	)	$	(2,771,067	)	$	(5,388,185	)
Basic and diluted loss per common share	$	(0.08	)	$	(0.08	)	$	(0.15	)
Weighted average common shares outstanding (1):		37,294,321			35,877,341			35,486,460
Potentially dilutive securities (2):
Stock options		5,210,334			5,244,918			4,658,017
Warrants		470,444			423,007			156,340
Convertible debt		—			257,798			257,798

(1) Includes approximately 0.4 million, 0.4 million and 0.5 million nonvested restricted stock for the years 2016, 2015 and 2014, respectively, which are participating securities that featurevoting and dividend rights.

(2) Excluded from the computation of loss per share as their impact is antidilutive.