Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the periods presented (in thousands, except share and per share data):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2021			2020			2021			2020
Numerator:
Net loss attributable to common stock holders	$	(12,733	)	$	(10,593	)	$	(34,788	)	$	(34,138	)
Denominator:
Weighted-average shares outstanding used in computing    net loss per share attributable to common    stockholders - basic and diluted		1,232,921			1,197,919			1,218,815			1,194,562
Net loss per share attributable to common stockholders    - basic and diluted	$	(10.33	)	$	(8.84	)	$	(28.54	)	$	(28.58	)

Summary of Potentially Dilutive Securities Excluded from the Computation of Diluted Net Loss Per Share

The following potentially dilutive securities were excluded from the computation of diluted net loss per share calculations for the periods presented because the impact of including them would be anti-dilutive:

	September 30,
	2021		2020
Convertible preferred stock		17,031,887		17,031,887
Stock options		2,532,210		2,245,047
Warrants		331,503		180,819
Forward obligation		224,842		224,842
Total		20,120,442		19,682,595