Note 12 - Net Loss Per Share

12 Months Ended

Dec. 31, 2019

Notes to Financial Statements

Earnings Per Share [Text Block]

( 12 ) Net Loss per Share

The following table sets forth the computation of the basic and diluted net loss per share for the years ended

December 31, 2019,

2018

and

2017

(in thousands, except share and per share data):

	Years ended December 31,
	2019			2018			2017
Numerator:
Net loss	$	(14,709	)	$	(13,987	)	$	(12,308	)
Denominator:
Weighted average shares used to compute net loss per share, basic and diluted		5,644,328			4,264,178			4,240,060
Net loss per share, basic and diluted	$	(2.61	)	$	(3.28	)	$	(2.90	)

The following weighted-average outstanding common stock equivalents were excluded from the computation of diluted net loss per share for the periods presented because including them would have been antidilutive:

	Years ended December 31,
	2019		2018		2017
Stock options to purchase common stock		821,464		608,547		468,122
Unvested restricted stock units		36,981		29,698		10,888
Common stock warrants		2,435,808		296,296		-
Total		3,294,253		934,541		479,010