Warrant Liabilities - Fair Value of Convertible Preferred Stock Warrant Liability (Detail)	Jun. 30, 2022	Dec. 31, 2021
Volatility [Member] \| 2018 PIPE Warrant Liability [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.95	0.95
Contractual Term [Member] \| 2018 PIPE Warrant Liability [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement term	1 year 6 months	2 years
Expected Dividend Yield [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0
Risk-free Rate [Member] \| 2018 PIPE Warrant Liability [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.0290	0.0072

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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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 https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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