China Contribution Plan - Additional Information (Detail) - USD ($)	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024
Retirement Benefits [Abstract]
Contribution to china contribution plan	$ 31,462	$ 32,594

Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration