Summary of Significant Accounting Policies - Schedule of Assets and Liabilities Measured on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Liabilities:
Convertible promissory notes		$ 10,131
Money Market Funds [Member]
Assets:
Money market funds	$ 140,032	3,041
Level 1 [Member] | Money Market Funds [Member]
Assets:
Money market funds	$ 140,032	3,041
Level 3 [Member]
Liabilities:
Convertible promissory notes		$ 10,131