XML 180 R132.htm IDEA: XBRL DOCUMENT v3.26.1

Schedule of Loans from a Related Party (Details) - USD ($)	Dec. 31, 2025	Dec. 31, 2024
Yu ning chiang [member]
IfrsStatementLineItems [Line Items]
Loans from a Related Party	$ 8,249,052

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- References

No definition available.

+ Details

Name:	YMAT_IfrsStatementLineItems
Namespace Prefix:	YMAT_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of loans payable in default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 18
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_18_b&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_LoansPayableInDefault
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=YMAT_YuNingChiangMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: