Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - Parentheticals - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Payments of stock issuance costs	$ 4,760	$ 2,708	$ 0
Redeemable Convertible Preferred Stock
Share price (in dollars per share)	$ 8.34		$ 3.89
Payments of stock issuance costs		$ 8,058	$ 7,010

The cash outflow for cost incurred directly with the issuance of an equity security.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

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