XML 336 R124.htm IDEA: XBRL DOCUMENT
v3.25.1

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

X
- References No definition available. + Details
Name: | YMAT_IfrsStatementLineItems
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: |