LEASES - Maturities of lease liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Mar. 31, 2025
Maturities of lease liabilities
April 1, 2026 - March 31, 2027	$ 945
April 1, 2027 - March 31, 2028	945
April 1, 2028 - March 31, 2029	945
April 1, 2029 - March 31, 2030	945
April 1, 2030 - March 31, 2031	162
Total lease payments	3,942
Less: imputed interest	278
Total lease liability	$ 3,664	$ 4,408

Amount of lease liabilities during the period.

No definition available.

Name:	tpcs_LeaseLiability
Namespace Prefix:	tpcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's interest amount for lease payments in excess of discounted obligation for lease payments for operating and finance lease.

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No definition available.

+ Details

Name:	tpcs_LesseeLeaseLiabilityImputedInterest
Namespace Prefix:	tpcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating and finance lease.

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No definition available.

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Name:	tpcs_LesseeLeaseLiabilityPaymentsDue
Namespace Prefix:	tpcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating and finance lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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No definition available.

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Name:	tpcs_LesseeLeaseLiabilityPaymentsDueNextTwelveMonths
Namespace Prefix:	tpcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating and finance lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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No definition available.

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Name:	tpcs_LesseeLeaseLiabilityPaymentsToBePaidYearFive
Namespace Prefix:	tpcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating and finance lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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No definition available.

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Name:	tpcs_LesseeLeaseLiabilityPaymentsToBePaidYearFour
Namespace Prefix:	tpcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating and finance lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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No definition available.

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Name:	tpcs_LesseeLeaseLiabilityPaymentsToBePaidYearThree
Namespace Prefix:	tpcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating and finance lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

Name:	tpcs_LesseeLeaseLiabilityPaymentsToBePaidYearTwo
Namespace Prefix:	tpcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	tpcs_LesseeOperatingAndFinanceLeaseLiabilityToBePaidFiscalYearMaturityAbstract
Namespace Prefix:	tpcs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration