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Net Loss Per Share Attributable to Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Net Loss Per Common Share

Basic and diluted net loss per common share is calculated as follows (in thousands except share and per share amounts):

		Year Ended December 31,
		2020				2019
Net loss		$	(27,531	)		$	(37,037	)
Cumulative dividends on convertible preferred stock			(7,189	)			(7,055	)
Net loss attributable to common stockholders		$	(34,720	)		$	(44,092	)
Net loss per common share—basic and diluted		$	(5.25	)		$	(33.41	)
Weighted-average number of shares used in computing net    loss per common share—basic and diluted			6,618,445				1,319,912

Schedule of Anti-dilutive Securities Excluded from Calculation of Diluted Net Loss Per Share

The following outstanding potentially dilutive shares have been excluded from the calculation of diluted net loss per share due to their anti-dilutive effect:

		As of December 31,
		2020				2019
Convertible preferred stock			—				117,809,883
Stock options to purchase common stock			2,756,102				2,117,106
Restricted stock awards			80,000				—
Warrants to purchase common stock			27,759				27,759

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- References

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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