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v3.21.2

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Nov. 10, 2021 | Oct. 31, 2021 | Sep. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Subsequent Event [Line Items] |  |  |  |  |
Amortization of debt issuance costs |  |  | $ 0.1 |  |
Second Amended and Restated Loan and Security Agreement |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Warrants granted to purchase (in shares) |  |  | 49,869 |  | 49,869
Second Amended and Restated Loan and Security Agreement | Minimum |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Exercise price of warrants or rights (in dollars per share) |  |  | $ 0.525 |  | $ 0.525
Second Amended and Restated Loan and Security Agreement | Maximum |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Exercise price of warrants or rights (in dollars per share) |  |  | $ 10.80 |  | $ 10.80
Subsequent Event | Second Amended and Restated Loan and Security Agreement |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Proceeds from warrants exercises |  | $ 0.1 |  |  |
Subsequent Event | Second Amended and Restated Loan and Security Agreement | Forecast |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Amortization of debt issuance costs |  |  |  | $ 0.2 |
Subsequent Event | Restricted Stock Units |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Grants in period (in shares) | 500,000 |  |  |  |
Stock-based compensation costs not yet recognized | $ 24.3 |  |  |  |
Weighted-average expected recognition period | 3 years 9 months 18 days |  |  |  |

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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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