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Redeemable Convertible Preferred Stock Warrants - Calculation Assumption of Fair Value of Warrants Using Black-Scholes Option Pricing Model (Details) - 2019 Warrants [Member] | Dec. 31, 2020
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Measurement Input Expected Term | Minimum [Member] |
Class Of Warrant Or Right [Line Items] |
Warrants term | 8 years 1 month 6 days
Measurement Input Expected Term | Maximum [Member] |
Class Of Warrant Or Right [Line Items] |
Warrants term | 8 years 6 months
Measurement Input Price Volatility | Minimum [Member] |
Class Of Warrant Or Right [Line Items] |
Alternative investment, measurement input | 42.18
Measurement Input Price Volatility | Maximum [Member] |
Class Of Warrant Or Right [Line Items] |
Alternative investment, measurement input | 42.63
Measurement Input Risk Free Interest Rate | Minimum [Member] |
Class Of Warrant Or Right [Line Items] |
Alternative investment, measurement input | 2.33
Measurement Input Risk Free Interest Rate | Maximum [Member] |
Class Of Warrant Or Right [Line Items] |
Alternative investment, measurement input | 2.49
Measurement Input Expected Dividend Rate |
Class Of Warrant Or Right [Line Items] |
Alternative investment, measurement input | 0

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- Definition Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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