XML 59 R42.htm IDEA: XBRL DOCUMENT
v3.25.1

Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - Fair Value, Recurring [Member] - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Assets: |  |
Assets | $ 139,610 | $ 27,278
Liabilities: |  |
Liabilities |  | 30,515
SAFE Liabilities [Member] |  |
Liabilities: |  |
Liabilities |  | 30,515
Money Market Funds [Member] | Cash Equivalents [Member] |  |
Assets: |  |
Assets | 139,610 | 27,278
Fair Value, Inputs, Level 1 [Member] |  |
Assets: |  |
Assets | 139,610 | 27,278
Liabilities: |  |
Liabilities |  | 0
Fair Value, Inputs, Level 1 [Member] | SAFE Liabilities [Member] |  |
Liabilities: |  |
Liabilities |  | 0
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member] | Cash Equivalents [Member] |  |
Assets: |  |
Assets | 139,610 | 27,278
Fair Value, Inputs, Level 2 [Member] |  |
Assets: |  |
Assets | 0 | 0
Liabilities: |  |
Liabilities |  | 0
Fair Value, Inputs, Level 2 [Member] | SAFE Liabilities [Member] |  |
Liabilities: |  |
Liabilities |  | 0
Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member] | Cash Equivalents [Member] |  |
Assets: |  |
Assets | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |
Assets: |  |
Assets | 0 | 0
Liabilities: |  |
Liabilities |  | 30,515
Fair Value, Inputs, Level 3 [Member] | SAFE Liabilities [Member] |  |
Liabilities: |  |
Liabilities |  | 30,515
Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member] | Cash Equivalents [Member] |  |
Assets: |  |
Assets | $ 0 | $ 0

X
- Definition Fair value portion of asset recognized for present right to economic benefit. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -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 (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=tecx_SAFELiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_CashEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |