v3.26.1
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2026
Aug. 06, 2026
Cover [Abstract]    
Registrant Name LION COPPER AND GOLD CORP.  
Registrant CIK 0001339688  
Current Fiscal Year End Date --12-31  
Document Type 10-Q  
Document Quarterly Report true  
Entity File Number 000-55139  
Document Period End Date Jun. 30, 2026  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Entity Incorporation, State or Country Code A1  
Entity Tax Identification Number 98-1664106  
Entity Address, Address Line One 517 West Bridge St., Suite A,  
Entity Address, City or Town Yerington  
Entity Address, State or Province NV  
Entity Address, Postal Zip Code 89447  
City Area Code 775  
Local Phone Number 463-9600  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   431,278,822
Amendment Flag false  
Document Transition Report false  
Entity Ex Transition Period false