v3.25.4

Summary of Significant Accounting Policies - Schedule of Significant Inputs in the Valuation Models (Details) | Dec. 31, 2024
--- | ---
Convertible debts A [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Valuation method | Binomial Tree Model
Convertible debts B [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Valuation method | Binomial Tree Model
Conversion Price [Member] | Convertible debts A [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 8.36
Conversion Price [Member] | Convertible debts B [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 12
Fair Value of Conversion Units [Member] | Convertible debts A [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 11.06
Fair Value of Conversion Units [Member] | Convertible debts B [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 15.15
Expected term (years) [Member] | Convertible debts A [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 1.16
Expected term (years) [Member] | Convertible debts B [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 0.04
Volatility [Member] | Convertible debts A [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 198.02
Volatility [Member] | Convertible debts B [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 112.77
Discount Rate [Member] | Convertible debts A [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 15
Discount Rate [Member] | Convertible debts B [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 15
Risk Free Rate [Member] | Convertible debts A [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 4.29
Risk Free Rate [Member] | Convertible debts B [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Conversion price | 4.24

X
- Definition Value of input used to measure investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Indicates measurement input for investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleMeasurementInputExtensibleList
Namespace Prefix: | us-gaap_
Data Type: | enum2:enumerationSetItemType
Balance Type: | na
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/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=illr_ConvertibleDebtsAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=illr_ConvertibleDebtsBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=illr_ConversionPriceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=illr_FairValueOfConversionUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=illr_ExpectedTermMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=illr_VolatilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=illr_DiscountRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=illr_RiskFreeRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |