{"cik":719413,"taxonomy":"us-gaap","tag":"Depreciation","label":"Depreciation","description":"The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.","entityName":"HECLA MINING COMPANY","units":{"USD":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0001193125-26-055059","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-17","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":14574000,"accn":"0001193125-26-055059","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-17","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0001193125-26-055059","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-17","frame":"CY2025"}]}}