Liabilities, Other - Summary of Liabilities, Other (Detail) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Accrued professional fees	$ 157,000	$ 155,000
Deposits and prepaid rent	146,000	93,000
Accrued payroll and related costs		75,000
Other	27,000	43,000
Liabilities, other	$ 330,000	$ 366,000