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v3.25.1

Property and Equipment, Net (Additional Information) (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Property, Plant and Equipment [Abstract] |  |
Depreciation and amortization expense | $ 1.2 | $ 1.0

X
- Definition Depreciation and amortization expense. + References No definition available. + Details
Name: | tecx_DepreciationAndAmortizationExpense
Namespace Prefix: | tecx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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