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Schedule of accounts receivable (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Notes and other explanatory information [abstract]
Accounts receivable	$ 1,277,928	$ 2,388,972
Less: expected credit loss allowance		(97,332)
Total accounts receivable net	$ 1,277,928	$ 2,291,640

X

- Definition

Allowance for credit loss.

+ References

No definition available.

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

X

- References

No definition available.

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X

- Definition

The amount of trade receivables and other receivables. [Refer: Trade receivables; Other receivables]

+ References

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X

- Definition

The amount due from customers for goods and services sold.

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