DEBT - Additional information (Details) - USD ($) $ in Thousands				3 Months Ended		12 Months Ended
	May 01, 2024	Aug. 25, 2021	Jan. 20, 2017	Jun. 30, 2026	Jun. 30, 2025	Mar. 31, 2026	Mar. 31, 2025	Dec. 21, 2016
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Maximum amount of borrowing base required to grant loan advance				$ 4,500
Weighted average amount outstanding				2,498
Amount outstanding				5,017		$ 7,037
Revolver loan
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Maximum principal amount				4,500
Interest payments				40	$ 53
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				$ 1		3
Interest rate (as a percent)				3.79%
Amount outstanding				$ 1,355		1,504
Stadco Term Loan, at 3.79% interest, due August 2028 | Ranor, Inc. | Revolver loan
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Principal amount of debt		4,000
Berkshire Loan
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Annual capital expenditure				$ 1,500		$ 1,500	$ 1,500
Berkshire Loan | Revolver loan
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Nonrefundable commitment fee percentages				0.25%
Amount outstanding				$ 1,599
Berkshire Loan | Secured Term Loan
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Monthly payments of principal and interest amount			$ 17
Interest rate (as a percent)			6.05%
Berkshire Loan | Ranor, Inc.
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Debt instrument covenant trailing period for measurement of loan to value ratio				365 days
Berkshire Loan | Ranor, Inc. | Secured Term Loan
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Principal amount of debt								$ 2,850
Berkshire Loan | Maximum
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Cash flow ratio of debt service				1.2
Debt instrument covenant leverage ratio				2.5
Loan-to-value ratio				0.75
Berkshire Loan | Minimum
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Cash flow ratio of debt service				1
Debt instrument covenant leverage ratio				1
Loan-to-value ratio				1
Ranor term loan | Revolving Credit Facility
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Weighted average interest rate (as a percent)				6.26%		6.70%
Unused borrowing capacity				$ 1,788		$ 1,054
Ranor term loan | Ranor, Inc.
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Proceeds drawn down		$ 2,850
Unamortized debt issuance expense				$ 151		$ 150
Stadco Equipment Financing
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Equipment financing agreement	2 years
Equipment purchase price	$ 65
Monthly payments	$ 3