XML 70 R55.htm IDEA: XBRL DOCUMENT
v3.26.1

Schedule of Operating Losses and Tax Credit Carryforwards (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Operating Loss Carryforwards [Line Items] |  |
Total | $ 237.9 | $ 231.5
Total | 2.1 | $ 2.2
Tax Year 2026 [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Total | 5.1 |
Total | 0.2 |
Tax Year 2027 [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Total | 11.5 |
Total | 0.2 |
Tax Year 2028 [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Total | 15.3 |
Total | 0.5 |
Tax Year 2029 [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Total | 15.9 |
Total | 0.3 |
Tax Year 2030 To 2037 [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Total | 114.8 |
Total | 0.9 |
Tax Year Indefinite Life [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Total | 75.3 |
Total | $ 0.0 |

X
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
Name: | us-gaap_OperatingLossCarryforwards
Namespace Prefix: | us-gaap_
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 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
Name: | us-gaap_OperatingLossCarryforwardsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
Name: | us-gaap_TaxCreditCarryforwardAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_TaxPeriodAxis=SINT_TaxYear2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SINT_TaxYear2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SINT_TaxYear2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SINT_TaxYear2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SINT_TaxYear2030To2037Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=SINT_TaxYearIndefiniteLifeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |