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Related Party Transactions (Details Narrative) - Research Collaboration Agreement [Member]	12 Months Ended
	Dec. 31, 2025 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Payment of research fund	$ 500,000
Prepaid Expenses And Other Current Asset [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Research fund remaining prepaid balance	$ 0

X

- Definition

Payment of research fund.

+ References

No definition available.

+ Details

Name:	SINT_PaymentOfResearchFund
Namespace Prefix:	SINT_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Research fund remaining prepaid balance.

+ References

No definition available.

+ Details

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Namespace Prefix:	SINT_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479402/808-10-50-1

+ Details

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Balance Type:	na
Period Type:	duration

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- Details

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Namespace Prefix:
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Period Type:

X

- Details

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