v3.25.3
Cover
Oct. 22, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Oct. 22, 2025
Entity File Number 001-42044
Entity Registrant Name Nano Nuclear Energy Inc.
Entity Central Index Key 0001923891
Entity Tax Identification Number 88-0861977
Entity Incorporation, State or Country Code NV
Entity Address, Address Line One 10 Times Square
Entity Address, Address Line Two 30th Floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10018
City Area Code (212)
Local Phone Number 634-9206
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, par value $0.0001 per share
Trading Symbol NNE
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false