v3.26.1
Cover
Jun. 16, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 16, 2026
Entity File Number 000-56406
Entity Registrant Name DEEP ISOLATION NUCLEAR, INC.
Entity Central Index Key 0001918080
Entity Tax Identification Number 87-4225965
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 2001 Addison Street
Entity Address, Address Line Two Suite 300
Entity Address, City or Town Berkeley
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94704
City Area Code 509
Local Phone Number 943-5222
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false