Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2021	Jun. 03, 2021	Sep. 30, 2020
Document and Entity Information
Document Type	10-K
Document Period End Date	Mar. 31, 2021
Entity Registrant Name	TECHPRECISION CORP
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--03-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001328792
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Amendment Flag	false
Entity Public Float			$ 31.5
Entity Common Stock, Shares Outstanding		29,498,662