Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Summary of Basic and Diluted Net Loss per Share Attributable to Common Stockholders

Basic and diluted net loss per share attributable to common stockholders was calculated as follows (in thousands, except share and per share data):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
Numerator:
Net loss	$	(6,334	)	$	(4,163	)	$	(15,106	)	$	(11,953	)
Accretion of redeemable convertible preferred stock		—			(79	)		(115	)		(234	)
Net loss attributable to common stockholders	$	(6,334	)	$	(4,242	)	$	(15,221	)	$	(12,187	)
Denominator:
Weighted-average common shares—basic and diluted		12,924,682			220,902			7,133,967			192,433
Net loss per share attributable to common stockholders—basic and diluted	$	(0.49	)	$	(19.20	)	$	(2.13	)	$	(63.33	)

Summary of Potentially Dilutive Securities Excluded from Calculation of Diluted Net Loss per Share

The following table sets forth the potentially dilutive securities that have been excluded from the calculation of diluted net loss per share because to include them would be anti-dilutive (in common stock equivalent shares retroactively adjusted):

	Nine Months Ended September 30,
	2020		2019
Series A-1 redeemable convertible preferred stock		—		986,466
Series A-2 redeemable convertible preferred stock		—		773,712
Series A-3 redeemable convertible preferred stock		—		872,031
Series A-4 redeemable convertible preferred stock		—		579,993
Series B redeemable convertible preferred stock		—		2,852,177
Stock options		1,375,307		799,376
Total		1,375,307		6,863,755