Annual report pursuant to Section 13 and 15(d)

Net Loss per Share (Tables)

Net Loss per Share (Tables)

12 Months Ended

Dec. 31, 2018

Summary of Computation of Basic and Diluted Net Loss per Share

The following table summarizes the computation of basic and diluted net loss per share (in thousands, except share and per share data):

	Year Ended December 31,
	2018			2017			2016
Numerator:
Net loss	$	(2,725	)	$	(9,980	)	$	(6,860	)
Denominator:
Weighted-average shares outstanding, basic and diluted		10,569,007			6,197,775			1,602,402
Net loss per share	$	(0.26	)	$	(1.61	)	$	(4.28	)

Schedule of Anti-dilutive Shares Outstanding Excluded in Calculation of Diluted Net Loss per Share

The following potentially dilutive shares outstanding at the end of the periods presented were excluded in the calculation of diluted net loss per share as the effect would have been anti-dilutive:

	Year Ended December 31,
	2018		2017		2016
Options to purchase common stock		820,186		1,294,128		1,130,141
Unvested restricted stock units		110,764		47,312		—
Warrants to purchase Series B-1 convertible preferred or common stock		163,713		468,278		680,027
Series B-1 convertible preferred stock (as-converted)		—		—		3,848,023
Series A-2 convertible preferred stock (as-converted)		—		—		841,730
Total		1,094,663		1,809,718		6,499,921