XML 134 R86.htm IDEA: XBRL DOCUMENT v3.26.1

Schedule of inventories (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
IfrsStatementLineItems [Line Items]
Allowance for valuation loss	$ (18,915,508)	$ (88,967)
Merchandise Inventory [member]
IfrsStatementLineItems [Line Items]
Inventory Cost	1,063,645
Allowance for valuation loss	(33,277)
Book value	1,030,368
Merchandise Inventory [member] | Raw materials inventory [member]
IfrsStatementLineItems [Line Items]
Inventory Cost	522,432
Allowance for valuation loss	(6,747)
Book value	515,685
Merchandise Inventory [member] | Work in progress inventory [member]
IfrsStatementLineItems [Line Items]
Inventory Cost	19,491
Allowance for valuation loss	(14)
Book value	19,477
Merchandise Inventory [member] | Finished goods inventory [member]
IfrsStatementLineItems [Line Items]
Inventory Cost	521,722
Allowance for valuation loss	(26,516)
Book value	$ 495,206

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 inventories carried at fair value less costs to sell. [Refer: At fair value [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 2
-IssueDate 2024-01-01
-Paragraph 36
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2024-en-r&anchor=para_36_c&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_InventoriesAtFairValueLessCostsToSell
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of inventories carried at net realisable value. [Refer: Inventories]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 2
-IssueDate 2024-01-01
-Paragraph 36
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2024-en-r&anchor=para_36&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_InventoriesAtNetRealisableValue
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of expense recognised related to the write-down of inventories to net realisable value. [Refer: Inventories]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 2
-IssueDate 2024-01-01
-Paragraph 36
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2024-en-r&anchor=para_36_e&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 98
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_98_a&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_InventoryWritedown2011
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis=YMAT_MerchandiseInventoryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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

X

- Details

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