DEBT - Additional information (Details) $ in Thousands										1 Months Ended	12 Months Ended
	Jun. 01, 2024	May 31, 2024	May 01, 2024 USD ($)	Mar. 20, 2024 USD ($)	Dec. 30, 2022	Dec. 23, 2022 USD ($)	Aug. 25, 2021 USD ($)	Jan. 20, 2017 USD ($)	Dec. 21, 2016 USD ($)	Dec. 31, 2022	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	May 24, 2024 USD ($)	May 23, 2024 USD ($)
DEBT
Basis spread on variable rate (as a percent)	2.50%	2.25%
Maximum amount of borrowing base required to grant loan advance											$ 4,500
Weighted average amount outstanding											2,983	$ 2,600
Revolver loan
DEBT
Maximum principal amount													$ 4,500	$ 5,000
Interest payments											200	197
Minimum
DEBT
Interest rate (as a percent)						5.21%
Maximum
DEBT
Interest rate (as a percent)						6.05%
Stadco Term Loan, at 3.79% interest, due August 2028
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Principal amount of debt							$ 4,000
Maturity term							7 years
Basis spread on variable rate (as a percent)							2.25%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]							tpcs:FederalHomeLoanBankOfBostonClassicAdvanceRateMember
Monthly payments of principal and interest amount							$ 54
Unamortized debt issuance expense											$ 3	$ 18
Interest rate (as a percent)											3.79%	3.79%
Ranor term loan
DEBT
Required minimum debt service coverage ratio, solely with respect to the fiscal quarter ending December 31, 2022					1.2					1.1
Ranor term loan | Revolver loan
DEBT
Maximum principal amount									$ 5,000
Ranor term loan | Revolving Credit Facility
DEBT
Maximum amount of borrowing base required to grant loan advance									$ 5,000
Weighted average interest rate (as a percent)											6.70%	7.47%
Unused borrowing capacity											$ 1,054	$ 1,256
Ranor term loan | Ranor, Inc.
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Proceeds drawn down							$ 2,850
Unamortized debt issuance expense											150	50
Ranor term loan | Minimum
DEBT
Monthly payments of principal and interest amount						$ 19
Ranor term loan | Maximum
DEBT
Monthly payments of principal and interest amount						$ 16
Berkshire Loan
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Annual capital expenditure											1,500	1,500
Berkshire Loan | Revolver loan
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Proceeds limit for due diligence				$ 2,000							$ 1,000
Nonrefundable commitment fee percentages											0.25%
Outstanding value											$ 3,446	$ 3,150
Berkshire Loan | Revolving Credit Facility
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Debt instrument percentage of accounts receivable used for determination of aggregate amount of advances									80.00%
Debt instrument percentage of eligible raw material used for determination of aggregate amount of advances									25.00%
Amount included in sum to calculate maximum borrowing base									$ 250
Berkshire Loan | Secured Term Loan
DEBT
Monthly payments of principal and interest amount								$ 19
Interest rate (as a percent)								5.21%
Berkshire Loan | Notes payables
DEBT
Debt Instrument percentage of appraised value Of equipment for determination of aggregate amount of advances									80.00%
Berkshire Loan | Ranor, Inc.
DEBT
Debt instrument covenant trailing period for measurement of loan to value ratio											365 days
Berkshire Loan | Ranor, Inc. | Secured Term Loan
DEBT
Principal amount of debt									$ 2,850
Berkshire Loan | Minimum
DEBT
Cash flow ratio of debt service											1
Debt instrument covenant leverage ratio											1
Loan-to-Value Ratio											1
Berkshire Loan | Maximum
DEBT
Cash flow ratio of debt service											1.2
Debt instrument covenant leverage ratio											2.5
Loan-to-Value Ratio											0.75
Stadco Equipment Financing
DEBT
Equipment financing agreement			2 years
Equipment purchase price			$ 65
Monthly payments			$ 3