XML 184 R136.htm IDEA: XBRL DOCUMENT v3.26.1

Significant contingent liabilities and unrecognized contract commitments (Details Narrative)	Jan. 01, 2026 USD ($)	Jan. 01, 2026 TWD ($)	Jun. 01, 2022 USD ($)	Jun. 01, 2022 TWD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2025 TWD ($)
Notes and other explanatory information [abstract]
Acquire building	$ 3,825,311	$ 120,000,000	$ 3,825,311	$ 120,000,000
Total payments					$ 637,552	$ 20,000,000
Deposit remaining amount					$ 3,187,759	$ 100,000,000

X

- Definition

Deposit remaining amount.

+ References

No definition available.

+ Details

Name:	YMAT_DepositRemainingAmount
Namespace Prefix:	YMAT_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Payment of deposits.

+ References

No definition available.

+ Details

Name:	YMAT_PaymentOfDeposits
Namespace Prefix:	YMAT_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

The amount of expense relating to property management. Property is land or a building - or part of a building - or both.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_PropertyManagementExpense
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration