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SUBSEQUENT EVENTS - Amended and Restated Loan Purchase and Sale Agreement (Details) - Subsequent event - Amended and Restated Loan Purchase and Sale Agreement | Apr. 23, 2021 USD ($)
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Subsequent Event [Line Items] |
Non-refundable deposit | $ 50,000
Acquisition fee | 100,000
Increase in indebtedness | $ 1,800,000

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- Definition The amount of cash related to acquisition fee. + References No definition available. + Details
Name: | tpcs_AcquisitionFee
Namespace Prefix: | tpcs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the amount of increase in indebtedness related to debt instruments. + References No definition available. + Details
Name: | tpcs_DebtInstrumentIncreaseInIndebtedness
Namespace Prefix: | tpcs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the amount of non-refundable deposit related to debt instruments. + References No definition available. + Details
Name: | tpcs_DebtInstrumentNonRefundableDeposit
Namespace Prefix: | tpcs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=tpcs_AmendedAndRestatedLoanPurchaseAndSaleAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |