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v3.25.1

COMMITMENTS (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2024 USD ($) item | Dec. 31, 2023 USD ($) | Dec. 31, 2024 USD ($) item | Dec. 31, 2023 USD ($)
COMMITMENTS |  |  |  |
Purchase obligation | $ 7,349 |  | $ 7,349 |
Retirement Benefits | $ 21 | $ 21 | $ 63 | $ 64
Number of defined contribution and saving plan | item | 2 |  | 2 |

X
- Definition Number of defined contribution and saving plan that covers substantially all employees. + References No definition available. + Details
Name: | tpcs_NumberOfDefinedContributionAndSavingPlan
Namespace Prefix: | tpcs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 70 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480794/715-70-50-1 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
Name: | us-gaap_PurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant