XML 14 R1.htm IDEA: XBRL DOCUMENT v3.25.3
Cover - shares
 9 Months Ended
Sep. 30, 2025
Nov. 13, 2025
Entity Addresses [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Sep. 30, 2025  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Entity File Number 001-42750  
Entity Registrant Name NEXMETALS MINING CORP.  
Entity Central Index Key 0000795800  
Entity Tax Identification Number 00-0000000  
Entity Incorporation, State or Country Code Z4  
Entity Address, Address Line One 3123-595 Burrard Street  
Entity Address, City or Town Vancouver  
Entity Address, State or Province BC  
Entity Address, Country CA  
Entity Address, Postal Zip Code V7X 1J1  
City Area Code (604)  
Local Phone Number 770-4334  
Title of 12(b) Security Common Shares, no par value  
Trading Symbol NEXM  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   21,455,608
Former Address [Member]    
Entity Addresses [Line Items]    
Entity Address, Address Line One Suite 3400  
Entity Address, Address Line Two One First Canadian Place  
Entity Address, Address Line Three P.O. Box 130  
Entity Address, City or Town Toronto  
Entity Address, State or Province ON  
Entity Address, Country CA