v3.25.2
Cover
 12 Months Ended
Mar. 31, 2025
shares
Document Information [Line Items]  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Financial Statement Error Correction [Flag] false
Document Shell Company Report false
Entity Interactive Data Current Yes
Document Accounting Standard U.S. GAAP
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
Entity Information [Line Items]  
Entity Registrant Name iOThree Limited
Entity Central Index Key 0001997637
Entity File Number 001-42594
Entity Incorporation, State or Country Code E9
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 Emerging Growth Company true
Entity Ex Transition Period false
Entity Incorporation, Date of Incorporation Aug. 21, 2023
Entity Contact Personnel [Line Items]  
Entity Address, Address Line One 140 Paya Lebar Road #07-02
Entity Address, Address Line Two AZ @ Paya Lebar
Entity Address, City or Town Singapore
Entity Address, Country SG
Entity Address, Postal Zip Code 409015
Entity Listings [Line Items]  
Title of 12(b) Security Ordinary Shares, par value $0.00625 per share
Trading Symbol IOTR
Security Exchange Name NASDAQ
Entity Common Stock, Shares Outstanding 24,000,000
Business Contact [Member]  
Entity Contact Personnel [Line Items]  
Contact Personnel Name Eng Chye Koh
Contact Personnel Email Address Email: ir@io3.sg
Entity Address, Address Line One 140 Paya Lebar Road #07-02
Entity Address, Address Line Two AZ @ Paya Lebar
Entity Address, City or Town Singapore
Entity Address, Country SG
Entity Address, Postal Zip Code 409015
Entity Phone Fax Numbers [Line Items]  
City Area Code +65
Local Phone Number 3105 1699