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Schedule of Endorsement and guarantee fees are as follows (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Key management		$ 471,574

X

- Definition

Guarantees fee.

+ References

No definition available.

+ Details

Name:	YMAT_GuaranteesFee
Namespace Prefix:	YMAT_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration