v3.26.1
SHAREHOLDERS' DEFICIT (Details)
 6 Months Ended 10 Months Ended 12 Months Ended
Sep. 05, 2025
USD ($)
$ / shares
shares
Aug. 15, 2025
shares
Aug. 06, 2025
shares
Jun. 30, 2026
USD ($)
Vote
$ / shares
shares
Jun. 30, 2025
USD ($)
Dec. 31, 2025
Vote
$ / shares
shares
Dec. 31, 2025
USD ($)
Vote
$ / shares
shares
Dec. 31, 2024
USD ($)
shares
Mar. 31, 2026
shares
Feb. 11, 2026
shares
Dec. 31, 2023
shares
Common share capital                      
Proceeds from issuance of SIF Warrants (note 11) | $       $ 3,624,000 $ 4,570,000   $ 4,570,000 $ 1,548,000      
Common shares, issued       13,324,608   13,290,803 13,290,803 1,316,702      
Common shares, outstanding       13,324,608   13,290,803 13,290,803 1,316,702      
Common shares redemption, issued     180,827,421     189,817,561 189,817,561 18,082,742      
Common shares redemption, outstanding     180,827,421     189,817,561 189,817,561 18,082,742     17,757,257
Conversion ratio     0.10 0.1     0.10 0.10      
Spring Valley Acquisition III                      
Common share capital                      
Preferred shares, shares authorized       1,000,000   1,000,000 1,000,000        
Preferred shares, par value (in dollars per share) | $ / shares       $ 0.0001   $ 0.0001 $ 0.0001        
Preferred shares, shares issued       0   0 0        
Preferred shares, shares outstanding       0   0 0        
Spring Valley Acquisition III | Public Warrants                      
Common share capital                      
Number of warrants in a unit       0.33   0.33 0.33        
Exercise price | $ / shares       $ 11.5   $ 11.5 $ 11.5        
Spring Valley Acquisition III | Private Placement Warrants                      
Common share capital                      
Number of warrants issued 7,046,111         7,046,111          
Price per warrant issued | $ / shares $ 0.9                    
Proceeds from issuance of SIF Warrants (note 11) | $ $ 6,341,500                    
Spring Valley Acquisition III | IPO including over-allotment                      
Common share capital                      
Number of units issued 23,000,000                    
Price per unit issued | $ / shares $ 10                    
Gross proceeds | $ $ 230,000,000                    
Spring Valley Acquisition III | Underwriters over-allotment option                      
Common share capital                      
Number of units issued 3,000,000                    
Spring Valley Acquisition III | Underwriters over-allotment option | Private Placement Warrants                      
Common share capital                      
Number of warrants issued 2,555,556                    
Spring Valley Acquisition III | Private placement | Private Placement Warrants | Underwriters                      
Common share capital                      
Number of warrants issued 2,555,556                    
Price per warrant issued | $ / shares $ 0.9                    
Proceeds from issuance of SIF Warrants (note 11) | $ $ 2,300,000                    
Sponsor | Spring Valley Acquisition III | Private Placement Warrants                      
Common share capital                      
Number of warrants issued 4,490,555                    
Sponsor | Spring Valley Acquisition III | Private placement | Private Placement Warrants                      
Common share capital                      
Number of warrants issued 4,490,555                    
Price per warrant issued | $ / shares $ 0.9                    
Proceeds from issuance of SIF Warrants (note 11) | $ $ 4,041,500                    
Class A ordinary shares | Spring Valley Acquisition III                      
Common share capital                      
Common shares, authorized       200,000,000   200,000,000 200,000,000        
Common shares, par value (in dollars per share) | $ / shares       $ 0.0001   $ 0.0001 $ 0.0001        
Number of votes per share | Vote       1   1 1        
Number of shares in a unit       1   1 1        
Common shares, issued       0   0 0        
Common shares, outstanding       0   0 0        
Class A ordinary shares | Spring Valley Acquisition III | Public Warrants                      
Common share capital                      
Number of shares called by each warrant       1   1 1     1  
Exercise price | $ / shares       $ 11.5   $ 11.5 $ 11.5        
Class A ordinary shares | Spring Valley Acquisition III | Private Placement Warrants                      
Common share capital                      
Number of shares called by each warrant       1   1 1        
Exercise price | $ / shares       $ 11.5   $ 11.5 $ 11.5        
Class A ordinary shares subject to possible redemption | Spring Valley Acquisition III                      
Common share capital                      
Common shares redemption, issued       23,000,000   23,000,000 23,000,000        
Common shares redemption, outstanding       23,000,000   23,000,000 23,000,000        
Class B common shares                      
Common share capital                      
Common shares, issued           0 0 0      
Common shares, outstanding           0 0 0      
Common shares redemption, issued       3,500,000   0 0        
Common shares redemption, outstanding       3,500,000   0 0   3,500,000    
Class B common shares | Spring Valley Acquisition III                      
Common share capital                      
Common shares, authorized       20,000,000   20,000,000 20,000,000        
Common shares, par value (in dollars per share) | $ / shares       $ 0.0001   $ 0.0001 $ 0.0001        
Number of votes per share | Vote       1   1 1        
Common shares, issued       7,666,667   7,666,667 7,666,667        
Common shares, outstanding       7,666,667   7,666,667 7,666,667        
Conversion ratio       1   1          
Class B common shares | Founder shares | Spring Valley Acquisition III                      
Common share capital                      
Common shares, outstanding   7,666,667                  
Number of shares no longer subject to forfeiture 1,000,000                    
Conversion ratio   1.33                  
Class B common shares | Founder shares | Sponsor | Spring Valley Acquisition III                      
Common share capital                      
Common shares, outstanding   7,546,667                  
Number of shares subject to forfeiture           1,000,000 1,000,000        
Founder shares as percentage of issued and outstanding shares, if forfeiture is made (in %)           25.00%          
Number of shares no longer subject to forfeiture 1,000,000