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DEBT - Additional information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
May 01, 2024
Aug. 25, 2021
Jan. 20, 2017
Dec. 31, 2025
Dec. 31, 2025
Jan. 16, 2026
Mar. 31, 2025
Dec. 21, 2016
DEBT                
Maximum amount of borrowing base required to grant loan advance       $ 4,500 $ 4,500      
Weighted average amount outstanding       2,966 2,966      
Revolver loan                
DEBT                
Interest payments       51 151      
Revolver loan | Subsequent event                
DEBT                
Maximum principal amount           $ 4,500,000    
Stadco Term Loan, at 3.79% interest, due August 2028                
DEBT                
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       $ 11 $ 11   $ 18  
Interest rate (as a percent)       3.79% 3.79%      
Stadco Term Loan, at 3.79% interest, due August 2028 | Ranor, Inc. | Revolver loan                
DEBT                
Principal amount of debt   4,000            
Ranor term loan | Revolving Credit Facility                
DEBT                
Weighted average interest rate (as a percent)       6.82% 6.82%   7.47%  
Unused borrowing capacity       $ 697 $ 697   $ 1,256  
Ranor term loan | Ranor, Inc.                
DEBT                
Proceeds drawn down   $ 2,850            
Unamortized debt issuance expense       31 $ 31   $ 50  
Berkshire Loan | Revolver loan                
DEBT                
Nonrefundable commitment fee percentages         0.25%      
Outstanding value       $ 2,926 $ 2,926      
Berkshire Loan | Secured Term Loan                
DEBT                
Monthly payments of principal and interest amount     $ 17          
Interest rate (as a percent)     6.05%          
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 year one         1      
Loan-to-Value Ratio       1 1      
Berkshire Loan | Maximum                
DEBT                
Cash flow ratio of debt service         1.2      
Debt instrument covenant leverage ratio year one         2.5      
Loan-to-Value Ratio       0.75 0.75      
Stadco Equipment Financing                
DEBT                
Equipment financing agreement 2 years              
Equipment purchase price $ 65              
Monthly payments $ 3