XML 305 R93.htm IDEA: XBRL DOCUMENT v3.25.1

Schedule of depreciation of right of use assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
IfrsStatementLineItems [Line Items]
Depreciation	$ 203,138	$ 718,635
Land Use Right [member]
IfrsStatementLineItems [Line Items]
Depreciation		25,166
Land and buildings [member]
IfrsStatementLineItems [Line Items]
Depreciation	$ 203,138	$ 693,469

X

- 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 depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2024-01-01
-Paragraph 53
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_a&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_DepreciationRightofuseAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=YMAT_LandUseRightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=ifrs-full_LandAndBuildingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: