Unaudited Condensed Consolidated Statements of Changes in Convertible Preferred Stock and Stockholders' Equity (Deficit) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Dec. 31, 2021	Oct. 31, 2020	May 31, 2020
Original Issuance Price (in dollars per share)	$ 6.11
Adjustments to stock issuance costs	$ 58,673
Series B-1
Original Issuance Price (in dollars per share)		$ 3.9760	$ 3.9760	$ 3.9760

Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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