v3.25.2
Document And Entity Information - USD ($)
 12 Months Ended
Mar. 31, 2025
Jul. 14, 2025
Document Information [Line Items]    
Document Type 10-K  
Document Annual Report true  
Document Period End Date Mar. 31, 2025  
Document Transition Report false  
Entity File Number 0-17629  
Entity Registrant Name ADM TRONICS UNLIMITED, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 22-1896032  
Entity Address, Address Line One 224 Pegasus Avenue  
Entity Address, City or Town Northvale  
Entity Address, State or Province NJ  
Entity Address, Postal Zip Code 07647  
City Area Code 201  
Local Phone Number 767-6040  
Title of 12(g) Security COMMON STOCK, $.0005 PAR VALUE  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
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  
ICFR Auditor Attestation Flag false  
Document Financial Statement Error Correction [Flag] false  
Entity Shell Company false  
Entity Public Float $ 4,731,194  
Entity Common Stock, Shares Outstanding (in shares)   67,588,492
Auditor Name JVA Accountants & Advisors, LLC  
Auditor Firm ID 5288  
Auditor Location Palm Beach Gardens, Florida  
Entity Central Index Key 0000849401  
Current Fiscal Year End Date --03-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus FY  
Amendment Flag false