XML 18 R1.htm IDEA: XBRL DOCUMENT v3.23.2
Cover Page - shares
6 Months Ended
Jun. 30, 2023
Aug. 03, 2023
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2023  
Document Fiscal Year Focus 2023  
Document Fiscal Period Focus Q2  
Entity Registrant Name HECLA MINING COMPANY  
Entity Central Index Key 0000719413  
Current Fiscal Year End Date --12-31  
Document Quarterly Report true  
Document Transition Report false  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Shell Company false  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Interactive Data Current Yes  
Entity Address, State or Province ID  
Entity Tax Identification Number 77-0664171  
Entity Address, Address Line One 6500 Mineral Drive, Suite 200  
Entity Address, City or Town Coeur d’Alene  
Entity Address, Postal Zip Code 83815-9408  
City Area Code 208  
Local Phone Number 769-4100  
Entity Common Stock, Shares Outstanding   617,339,547,000
Entity File Number 1-8491  
Entity Incorporation, State or Country Code DE  
Common Stock [Member]    
Document Information [Line Items]    
Title of 12(b) Security Common Stock, par value $0.25 per share  
Trading Symbol HL  
Security Exchange Name NYSE  
Series B Cumulative Preferred Stock [Member]    
Document Information [Line Items]    
Title of 12(b) Security Series B Cumulative Convertible PreferredStock, par value $0.25 per share  
Trading Symbol HL-PB  
Security Exchange Name NYSE