Condensed Statements of Stockholders' Equity (unaudited) (Parenthetical) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Series A Redeemable Convertible Preferred Stock
Stock issuance costs		$ 4	$ 200
Series B Redeemable Convertible Preferred Stock
Stock issuance costs	$ 200	$ 226

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-15

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