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Accounts Payable and Accrued Expenses - Commercial Insurance Premium Financing Agreement (Detail) - USD ($)	1 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Sep. 30, 2022	Dec. 31, 2022
Maximum
Debt Instrument [Line Items]
Termination charges		$ 534,000
Maximum \| Forecast
Debt Instrument [Line Items]
Retention and severance charges			$ 225,000
Commercial Insurance Premium Financing Agreement
Debt Instrument [Line Items]
Financing agreement amount	$ 1,159,000
Term of agreement (in years)	8 months
Interest rate (as a percentage)	3.98%
Insurance down payment	$ 402,000
Principal and interest payments per month	$ 95,000
Outstanding obligation amount		$ 473,000