XML 175 R127.htm IDEA: XBRL DOCUMENT v3.26.1

Schedule of service revenue (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
IfrsStatementLineItems [Line Items]
Total Service revenue	$ 960,000	$ 529,665	$ 325,370
YMA DG [member]
IfrsStatementLineItems [Line Items]
Total Service revenue	960,000	529,665	280,231
Forwell [member]
IfrsStatementLineItems [Line Items]
Total Service revenue			$ 45,139

X

- References

No definition available.

+ Details

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

X

- Definition

Service revenue.

+ References

No definition available.

+ Details

Name:	YMAT_ServiceRevenue
Namespace Prefix:	YMAT_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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

X

- Details

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