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Convertible Preferred Stock - Additional Information (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Oct. 31, 2021 shares | Mar. 31, 2021 USD ($) $ / shares shares | Mar. 31, 2021 USD ($) $ / shares shares | Mar. 05, 2021 $ / shares
Temporary Equity [Line Items] |  |  |  |
Issuance costs |  |  | $ 47 |
Net proceeds from issuance of convertible preferred stock |  |  | $ 151,581 |
Securities Purchase Agreement | Series B Convertible Preferred Stock |  |  |  |
Temporary Equity [Line Items] |  |  |  |
Share sale price per share | $ / shares |  | $ 1.6458 | $ 1.6458 | $ 1.6458
Shares issued | shares |  | 92,356,299 | 92,356,299 |
Gross cash proceeds from issuance of convertible preferred stock |  | $ 152,000 |  |
Issuance costs |  | 400 |  |
Net proceeds from issuance of convertible preferred stock |  | $ 151,600 |  |
Reverse stock split description | 1-for-6.359 reverse stock split |  |  |
Reverse stock split, conversion ratio | 0.15725743 |  |  |
Securities Purchase Agreement | Series B Convertible Preferred Stock | Common Stock |  |  |  |
Temporary Equity [Line Items] |  |  |  |
Convertible preferred stock shares issued upon conversion | shares | 16,482,486 |  |  |
Securities Purchase Agreement | Series B Convertible Preferred Stock | Initial Public Offering |  |  |  |
Temporary Equity [Line Items] |  |  |  |
Number of preferred shares conversion | shares | 104,812,248 |  |  |
Agreements with Pfizer, Inc. and LegoChem Biosciences Inc. | Series B Convertible Preferred Stock |  |  |  |
Temporary Equity [Line Items] |  |  |  |
Shares issued | shares |  | 12,455,949 | 12,455,949 |
Net proceeds from issuance of convertible preferred stock |  | $ 20,500 |  |

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- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586 + Details
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- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770 + Details
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- Definition Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 4.C) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770 + Details
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- Definition The number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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