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v3.22.2

LEASES - Supplemental cash flow information (Details) - USD ($) | 12 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
LEASES |  |
Cash used in operating activities | $ 448,206 | $ 5,063
Cash used in financing activities | $ 508,806 | $ 22,460

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- Definition Payments From Financing Activities Relating To Leases. + References No definition available. + Details
Name: | tpcs_PaymentsFromFinancingActivitiesRelatingToLeases
Namespace Prefix: | tpcs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Payments From Operating Activities Relating To Lease + References No definition available. + Details
Name: | tpcs_PaymentsFromOperatingActivitiesRelatingToLeases
Namespace Prefix: | tpcs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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