v3.26.1
Cover - shares
 3 Months Ended
Jun. 30, 2026
Aug. 07, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes  
Amendment Flag false  
Document Period End Date Jun. 30, 2026  
Document Fiscal Year Focus 2027  
Document Fiscal Period Focus Q1  
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 Current Reporting Status Yes  
Entity Shell Company false  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
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  
City Area Code (718)  
Local Phone Number 492-4440  
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   2,477,749