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Net Loss per Share Attributable to Common Stockholders

12 Months Ended

Dec. 31, 2018

Net Loss per Share Attributable to Common Stockholders

15.	Net Loss per Share Attributable to Common Stockholders

The following table sets forth the computation of the basic and diluted net loss per common share during the years ended December 31, 2018 and 2017 (in thousands, except share and per share data):

	Year Ended December 31,
	2018			2017
Net loss attributable to common stockholders	$	(30,055	)	$	(25,512	)
Weighted-average number of shares used in computing net loss per share, basic and diluted		11,213,884			3,423,901
Net loss per share, basic and diluted	$	(2.68	)	$	(7.45	)

Since the Company was in a loss position for all periods presented, diluted net loss per share is the same as basic net loss per share for all periods as the inclusion of all potential common shares outstanding would have been anti-dilutive. Potentially dilutive securities on an as-if converted basis that were not included in the diluted per share calculations because they would be anti-dilutive were as follows:

	Year Ended December 31,
	2018		2017
Options to purchase common stock		1,361,977		821,741
Convertible preferred stock ⁽¹⁾		—		736,000
Common stock warrants		10,194		1,751,708
Redeemable convertible notes		—		36,883
Total		1,372,171		3,346,332

(1)	As of December 31, 2017, represents 3,680 shares of Series A Preferred Stock on an as converted basis to 0.7 million shares of common stock.