v3.26.1
Reverse Merger - Schedule of Number of Shares of Common Stock Issued and Outstanding (Details)
Dec. 31, 2025
shares
Deep Isolation, converted to Deep Isolation Nuclear stock [Member]  
Reverse Merger - Schedule of Number of Shares of Common Stock Issued and Outstanding (Details) [Line Items]  
Common stock 44,247,429
Issued in Offering [Member]  
Reverse Merger - Schedule of Number of Shares of Common Stock Issued and Outstanding (Details) [Line Items]  
Common stock 11,012,387
Aspen, outstanding prior to Merger [Member]  
Reverse Merger - Schedule of Number of Shares of Common Stock Issued and Outstanding (Details) [Line Items]  
Common stock 2,166,667
Advisor Shares [Member]  
Reverse Merger - Schedule of Number of Shares of Common Stock Issued and Outstanding (Details) [Line Items]  
Common stock 83,333
Total shares outstanding immediately after the Merger and Offering [Member]  
Reverse Merger - Schedule of Number of Shares of Common Stock Issued and Outstanding (Details) [Line Items]  
Common stock 57,509,816