v3.26.3
Subsidiaries - Schedule of Subsidiaries (Details)
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Critical Metals Corp [Member]    
Schedule of Subsidiaries [Line Items]    
Country of Incorporation British Virgin Islands  
Ownership Interest
European Lithium AT (Investments) Ltd [Member]    
Schedule of Subsidiaries [Line Items]    
Country of Incorporation British Virgin Islands  
Ownership Interest 100.00% 100.00%
ECM Lithium AT GmbH [Member]    
Schedule of Subsidiaries [Line Items]    
Country of Incorporation Austria  
Ownership Interest 100.00% 100.00%
ECM Lithium AT Operating GmbH [Member]    
Schedule of Subsidiaries [Line Items]    
Country of Incorporation Austria  
Ownership Interest 100.00% 100.00%
Sizzle Acquisition Corp [Member]    
Schedule of Subsidiaries [Line Items]    
Country of Incorporation USA  
Ownership Interest 100.00% 100.00%
Critical BTC LLC [Member]    
Schedule of Subsidiaries [Line Items]    
Country of Incorporation USA  
Ownership Interest 100.00% 100.00%
Tanbreez Mining Greenland A/S [Member]    
Schedule of Subsidiaries [Line Items]    
Country of Incorporation Greenland  
Ownership Interest 92.50%