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Area of a real estate property.

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Exercise price per share or per unit of warrants or rights outstanding.

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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.

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Face amount or stated value per share of common stock.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

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- Definition

Amount of expense (income) related to adjustment to fair value of warrant liability.

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- Definition

Description of lessee's operating lease.

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Description of terms and conditions of option to extend operating sublease.

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- Definition

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.

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Amount of operating lease expense. Excludes sublease income.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Commitments and Contingencies - Additional Information (Detail)		1 Months Ended		3 Months Ended
	Nov. 07, 2022 USD ($)	Nov. 30, 2022 $ / shares shares	Sep. 30, 2019 USD ($) $ / shares shares	Mar. 31, 2023 USD ($) $ / shares	Mar. 31, 2022 USD ($)	Dec. 31, 2022 $ / shares	Oct. 31, 2021 ft²
Loss Contingencies [Line Items]
Estimated fair value of the warrants adjusted				$ 0	$ (1,000)
Common stock, value per share \| $ / shares				$ 0.0001		$ 0.0001
Noncancelable lease agreement description				In October 2021, the Company entered into a 38-month noncancelable lease for its current headquarters location consisting of 4,047 rentable square feet of office space in San Diego, California. Under the terms of the agreement, there is no option to extend the lease, and the Company is subject to additional charges for common area maintenance and other costs.
Option to Extend				there is no option to extend the lease
Operating Lease Weighted Average Discount Rate				8.00%
Operating Lease Weighted Average Remaining Lease Term				23 months
Silicon Valley Bank [Member] \| Note Payable [Member]
Loss Contingencies [Line Items]
Debt issuance costs			$ 47,000,000
Warrants converted to warrants to purchase \| shares		45,456
Common stock, value per share \| $ / shares		$ 2.20
Repayments of debt including principal and interest	$ 5,400,000
Silicon Valley Bank [Member] \| Note Payable [Member] \| Warrant [Member]
Loss Contingencies [Line Items]
Estimated fair value of the warrants adjusted			$ 86,000,000
Silicon Valley Bank [Member] \| Note Payable [Member] \| Series C Convertible Preferred Stock [Member] \| Warrant [Member]
Loss Contingencies [Line Items]
Class of warrant, warrants to purchase \| shares			38,460
Warrants exercise price \| $ / shares			$ 2.60
Silicon Valley Bank [Member] \| Loan and Security Agreement [Member] \| Note Payable [Member]
Loss Contingencies [Line Items]
Debt instrument aggregate principal amount			$ 10,000,000.0
Final balloon payment at maturity			$ 300,000
San Diego California [Member]
Loss Contingencies [Line Items]
Leased properties, square feet \| ft²							4,047
Noncancelable lease term of contract							38 months
Operating lease expense				$ 100,000	100,000
Cash paid for amounts included in measurement of lease liabilities				$ 100,000	$ 100,000