5. Net Loss per Share

The following table sets forth the computation of basic and diluted net loss per share for the periods indicated:



	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Basic and diluted net loss per share calculation:
Net loss, basic	$	(1,606,000)	$	(779,000)	$	(7,790,000)	$	(10,486,000)
Change in fair value of November 2016 warrants		(21,000)		-		-		(1,546,000)
Net loss, diluted	$	(1,627,000)	$	(779,000)	$	(7,790,000)	$	(12,032,000)
Weighted average shares outstanding, basic		16,468,308		8,874,813		15,418,146		5,326,139
Net loss per share, basic	$	(0.10)	$	(0.09)	$	(0.51)	$	(1.97)
Weighted average shares outstanding, diluted		16,496,957		8,874,813		15,418,146		5,518,847
Net loss per share, diluted	$	(0.10)	$	(0.09)	$	(0.51)	$	(2.18)

The following outstanding securities at September 30, 2018 and 2017 have been excluded from the computation of diluted weighted average shares outstanding for the three and nine months ended September 30, 2018 and 2017, as they would have been anti-dilutive:


	Three Months Ended			Nine Months Ended
	September 30,				September 30,
	2018		2017		2018	2017
Options		1,149,164	1,116,765		1,149,164	1,116,765
Warrants		8,126,329	8,712,220		8,294,827	8,232,056
Common stock (Note 6)		-	523,210		-	523,210
Total		9,275,493	10,352,195		9,443,991	9,872,031