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Net Loss per Share - Antidilutive effect (Details) - shares	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Net Loss per Share
Conversion of common stock	20,375,329	17,317,608
Convertible preferred stock (as converted)
Net Loss per Share
Conversion of common stock	15,906,537	12,528,612
Options issued and outstanding
Net Loss per Share
Conversion of common stock	4,318,992	4,587,865
Warrants for common stock
Net Loss per Share
Conversion of common stock	149,800	201,131

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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