v3.26.1
RELATED PARTY TRANSACTIONS - Founder Shares (Details)
6 Months Ended 7 Months Ended 10 Months Ended 12 Months Ended
Jan. 21, 2026
Aug. 15, 2025
$ / shares
shares
Aug. 06, 2025
shares
Mar. 28, 2025
USD ($)
D
$ / shares
shares
Jun. 30, 2026
USD ($)
shares
Aug. 06, 2025
shares
Dec. 31, 2025
USD ($)
shares
Dec. 31, 2025
shares
Dec. 31, 2024
shares
Sep. 05, 2025
shares
RELATED PARTY TRANSACTIONS                    
Number of shares converted to Common A shares           11,960,583        
Reverse stock split conversion ratio     0.10   0.1     0.10 0.10  
Common shares, outstanding         13,324,608   13,290,803 13,290,803 1,316,702  
Class B common shares                    
RELATED PARTY TRANSACTIONS                    
Common shares, outstanding             0 0 0  
Class B common shares | Spring Valley Acquisition III                    
RELATED PARTY TRANSACTIONS                    
Reverse stock split conversion ratio         1   1      
Common shares, outstanding         7,666,667   7,666,667 7,666,667    
Class A ordinary shares                    
RELATED PARTY TRANSACTIONS                    
Number of shares converted to Common A shares     11,960,583         11,960,583    
Class A ordinary shares | Spring Valley Acquisition III                    
RELATED PARTY TRANSACTIONS                    
Common shares, outstanding         0   0 0    
Sponsor | Class B common shares | Spring Valley Acquisition III                    
RELATED PARTY TRANSACTIONS                    
Number of shares transferred   13,333                
Transfer price per share | $ / shares   $ 43.48                
Founder shares | Spring Valley Acquisition III                    
RELATED PARTY TRANSACTIONS                    
Restrictions on transfer period of time after business combination completion       1 year            
Founder shares | Class B common shares | Spring Valley Acquisition III                    
RELATED PARTY TRANSACTIONS                    
Reverse stock split conversion ratio   1.33                
Number of shares transferred   13,333                
Transfer price per share | $ / shares   $ 43.48                
Common shares, outstanding   7,666,667                
Shares held by each independent director   40,000                
Percentage of issued and outstanding shares after the Initial Public Offering collectively held by stockholders   25.00%                
Number of shares no longer subject to forfeiture                   1,000,000
Founder shares | Class B common shares | Maximum | Spring Valley Acquisition III                    
RELATED PARTY TRANSACTIONS                    
Number of shares subject to forfeiture   1,000,000                
Founder shares | Class A ordinary shares | Spring Valley Acquisition III                    
RELATED PARTY TRANSACTIONS                    
Stock price trigger (in dollars per share) | $ / shares       $ 12            
Threshold number of trading days | D       20            
Threshold number of consecutive trading days | D       30            
Threshold period after the business combination in which the 20 trading days within any 30 trading day period commences | D       150            
Founder shares | Sponsor | Spring Valley Acquisition III                    
RELATED PARTY TRANSACTIONS                    
Percentage of equity interest forfeited 15.00%                  
Founder shares | Sponsor | Class B common shares | Spring Valley Acquisition III                    
RELATED PARTY TRANSACTIONS                    
Net proceeds | $       $ 25,000 $ 25,000   $ 25,000      
Number of shares converted to Common A shares       5,750,000            
Common shares, outstanding   7,546,667                
Number of shares no longer subject to forfeiture                   1,000,000