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Retirement Benefits (Details Narrative) | Dec. 31, 2024
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Retirement Benefits [Abstract] |
Percentage of eligible compensation | 15.00%

X
- Definition Percentage of eligible compensation. + References No definition available. + Details
Name: | YHGJ_PercentageOfEligibleCompensation
Namespace Prefix: | YHGJ_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration