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Related Party Transactions (Details Narrative) - Research Collaboration Agreement [Member] | 12 Months Ended
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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

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- 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

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- Definition Research fund remaining prepaid balance. + References No definition available. + Details
Name: | SINT_ResearchFundRemainingPrepaidBalance
Namespace Prefix: | SINT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- 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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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_TypeOfArrangementAxis=SINT_ResearchCollaborationAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | SINT_StatementOfFinancialPositionLocationBalanceAxis=SINT_PrepaidExpensesAndOtherCurrentAssetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |