v3.25.1
Cover - USD ($)
 12 Months Ended
Mar. 31, 2025
Jun. 12, 2025
Sep. 30, 2024
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Financial Statement Error Correction [Flag] false    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag false    
Amendment Flag false    
Document Period End Date Mar. 31, 2025    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Documents Incorporated by Reference [Text Block] None    
Entity Information [Line Items]      
Entity Registrant Name IEH Corporation    
Entity Central Index Key 0000050292    
Entity File Number 0-5278    
Entity Tax Identification Number 13-5549348    
Entity Incorporation, State or Country Code NY    
Current Fiscal Year End Date --03-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Shell Company false    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Public Float     $ 14,835,600
Entity Contact Personnel [Line Items]      
Entity Address, Address Line One 140 58th Street    
Entity Address, Address Line Two Suite 8E    
Entity Address, City or Town Brooklyn    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 11220    
Entity Phone Fax Numbers [Line Items]      
City Area Code (718)    
Local Phone Number 492-4440    
Entity Listings [Line Items]      
Trading Symbol IEHC    
Security Exchange Name NONE    
Title of 12(g) Security Shares of common stock, $0.01 par value    
Entity Common Stock, Shares Outstanding   2,390,251