Hecla Mining (HL) 10-K 13 Feb 25 2024 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2024	Feb. 07, 2025	Jun. 30, 2024
Document Information [Line Items]
Entity Central Index Key	0000719413
Entity Registrant Name	HECLA MINING COMPANY
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2024
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2024
Document Transition Report	false
Entity File Number	1-8491
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0664171
Entity Address, Address Line One	6500 N. Mineral Drive, Suite 200
Entity Address, City or Town	Coeur d’Alene
Entity Address, State or Province	ID
Entity Address, Postal Zip Code	83815-9408
City Area Code	208
Local Phone Number	769-4100
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 2,979,623,680
Entity Common Stock, Shares Outstanding		631,831,137
Documents Incorporated by Reference	To the extent herein specifically referenced in Part III, the information contained in the Proxy Statement for the 2025 Annual Meeting of Shareholders of the registrant, which will be filed with the Commission pursuant to Regulation 14A within 120 days of the end of the registrant’s 2024 fiscal year, is incorporated herein by reference. See Part III.
Auditor Name	BDO USA, P.C.
Auditor Location	Spokane, Washington
Auditor Firm ID	243
ICFR Auditor Attestation Flag	true
Auditor Opinion	Opinion on Internal Control over Financial Reporting We have audited Hecla Mining Company’s (the “Company’s”) internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (the “COSO criteria”). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2024, based on the COSO criteria. We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the consolidated balance sheets of the Company as of December 31, 2024 and 2023, the related consolidated statements of operations and comprehensive income (loss), changes in stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2024, and the related notes and our report dated February 13, 2025 expressed an unqualified opinion thereon. Basis for Opinion The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Item 9A, Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audit of internal control over financial reporting in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
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

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Sales	$ 929,925	$ 720,227	$ 718,905
Cost of sales and other direct production costs	548,245	458,504	458,811
Depreciation, depletion and amortization	183,470	148,774	143,938
Total cost of sales	731,715	607,278	602,749
Gross profit	198,210	112,949	116,156
Other operating expenses:
General and administrative	45,405	42,722	43,384
Exploration and pre-development	27,321	32,512	46,041
Ramp-up and suspension costs	43,307	76,252	24,114
Provision for closed operations and environmental matters	6,843	7,575	8,793
Writedown of property, plant and equipment	14,574	0	0
Other operating (income) expense, net	(45,516)	(1,438)	6,262
Total other operating expenses	91,934	157,623	128,594
Income (loss) from operations	106,276	(44,674)	(12,438)
Other expense:
Fair value adjustments, net	(2,204)	2,925	(4,723)
Foreign exchange gain (loss), net	7,552	(3,810)	7,211
Other income	4,426	5,883	7,829
Interest expense	(49,834)	(43,319)	(42,793)
Total other expense:	(40,060)	(38,321)	(32,476)
Income (loss) before income and mining taxes	66,216	(82,995)	(44,914)
Income and mining tax (provision) benefit	(30,414)	(1,222)	7,566
Net income (loss)	35,802	(84,217)	(37,348)
Preferred stock dividends	(552)	(552)	(552)
Net income (loss) applicable to common stockholders	35,250	(84,769)	(37,900)
Comprehensive income (loss):
Net Income (Loss)	35,802	(84,217)	(37,348)
Unrealized (loss) gain and amortization of prior service on pension plans	(8,389)	(1,157)	17,067
Unrealized (loss) gain on derivative contracts designated as hedge transactions	(7,714)	4,546	13,837
Total change in accumulated other comprehensive (loss) income, net	(16,103)	3,389	30,904
Comprehensive income (loss)	$ 19,699	$ (80,828)	$ (6,444)
Basic income (loss) common share after preferred dividends	$ 0.06	$ (0.14)	$ (0.07)
Diluted income (loss) per common share after preferred dividends	$ 0.06	$ (0.14)	$ (0.07)
Weighted average number of common shares outstanding - basic	620,848	605,668	557,344
Weighted average number of common shares outstanding - diluted	622,535	605,668	557,344

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net Income (Loss)	$ 35,802	$ (84,217)	$ (37,348)
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation, depletion and amortization	190,471	163,672	145,147
Fair value adjustments, net	2,204	(2,925)	24,182
Inventory adjustments	11,707	20,819	2,646
Provision for reclamation and closure costs	9,370	9,658	9,572
Deferred income taxes	19,688	(6,115)	(25,546)
Stock-based compensation	8,659	6,598	6,012
Foreign exchange (gain) loss	(7,552)	3,810	(9,210)
Writedown of property, plant and equipment	14,574	0	0
Other non-cash items	1,706	3,094	3,736
Changes in assets and liabilities:
Accounts receivable	(17,159)	25,133	8,669
Inventories	(32,835)	(24,035)	(18,230)
Other current and non-current assets	(12,517)	(32,456)	(12,388)
Accounts payable, accrued and other current liabilities	(2,826)	598	(24,981)
Accrued payroll and related benefits	6,739	(4,982)	13,732
Accrued taxes	2,817	(571)	(7,927)
Accrued reclamation and closure costs and other non-current liabilities	(12,571)	(2,582)	11,824
Net cash provided by operating activities	218,277	75,499	89,890
Net Cash Provided by (Used in) Investing Activities [Abstract]
Additions to property, plant and equipment and mine development	(214,492)	(223,887)	(149,378)
Proceeds from disposition of assets	1,694	1,329	748
Pre-acquisition advance to Alexco	0	0	(25,000)
Acquisition, net	0	228	8,953
Proceeds from sale or exchange of investments	0	0	9,375
Purchases of investments	(73)	(8,962)	(31,971)
Net cash used in investing activities	(212,871)	(231,292)	(187,273)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from issuance of common stock, net of offering costs	58,368	56,684	17,278
Dividends paid to common and preferred stockholders	(25,331)	(15,713)	(12,932)
Acquisition of treasury shares from employee equity awards	(1,197)	(2,036)	(3,677)
Borrowings of debt	279,000	239,000	25,000
Repayments of debt	(384,000)	(111,000)	(25,000)
Repayments of finance leases and other	(10,664)	(10,605)	(8,169)
Net cash (used in) provided by financing activities	(83,824)	156,330	(7,500)
Effect of exchange rates on cash	(1,076)	1,095	(273)
Net (decrease) increase in cash and cash equivalents and restricted cash and cash equivalents	(79,494)	1,632	(105,156)
Cash and cash equivalents and restricted cash and cash equivalents at beginning of year	107,539	105,907	211,063
Cash and cash equivalents and restricted cash and cash equivalents at end of year	28,045	107,539	105,907
Reconciliation of cash and cash equivalents and restricted cash and cash equivalensts above to where reported on the consolidated balance sheet
Cash and cash equivalents	26,868	106,374	104,743
Non current restricted cash and cash equivalents	1,177	1,165	1,164
Total cash and cash equivalents and restricted cash and cash equivalenst as reported on the consolidated cash flow statement	28,045	107,539	105,907
Supplemental Cash Flow Information [Abstract]
Interest	46,061	37,744	37,200
Income and mining taxes, net of refunds	6,571	8,907	14,405
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Addition of finance lease obligations and right-of-use assets	5,605	16,116	11,887
Recognition of operating lease liabilities and right-of-use assets	0	203	6,842
Properties, plants, equipment and mine development additions in accounts payable and accrued liabilities	1,975	0	0
Common stock contributed to pension plans	0	1,035	9,740
Common Stock Issued as Incentive Compensation	6,588	0	0
Common stock issued to directors	796	676	417
Common stock issued to interim CEO	283	0	0
Common stock issued for 401(k) match	4,763	4,608	4,470
Common stock issued for warrant exercises	372	0	0
Common stock issued to settle acquired silver stream	0	0	135,000
Common stock issued to Alexco Resource Corp. stockholders
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Common stock issued to stockholders	0	0	68,733
Common stock issued to ATAC Resources Ltd. stockholders
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Common stock issued to stockholders	$ 0	$ 18,789	$ 0

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 26,868	$ 106,374
Accounts receivable:
Trade	31,515	19,425
Other, net	17,538	13,691
Inventories:
Product inventories	34,962	28,823
Materials and supplies	69,974	64,824
Other current assets	33,295	27,125
Total current assets	214,152	260,262
Investments	33,897	33,724
Restricted cash and cash equivalents	1,177	1,165
Properties, plants, equipment and mine development, net	2,694,119	2,666,250
Operating lease right-of-use assets	7,544	8,349
Deferred tax assets	0	2,883
Other non-current assets	30,171	38,471
Total assets	2,981,060	3,011,104
Current liabilities:
Accounts payable and accrued liabilities	88,957	81,599
Accrued payroll and related benefits	22,834	28,240
Accrued taxes	6,312	3,501
Current debt	33,617	0
Finance leases	8,169	9,752
Accrued reclamation and closure costs	13,748	9,660
Accrued interest	14,316	14,405
Derivative liabilities	8,155	1,144
Other current liabilities	1,730	9,159
Total current liabilities	197,838	157,460
Accrued reclamation and closure costs	111,162	110,797
Long-term debt including finance leases	508,927	653,063
Deferred tax liability	110,266	104,835
Derivatives liabilities	2,021	364
Other non-current liabilities	11,332	16,481
Total liabilities	941,546	1,043,000
Commitments and contingencies (Notes 5, 6, 9, 10, 14, 15, and 16)
STOCKHOLDERS' EQUITY
Preferred stock, 5,000,000 shares authorized: Series B preferred stock, $0.25 par value, 2024 and 2023 - 157,756 shares issued and outstanding, liquidation preference - $7,889	39	39
Common stock, $0.25 par value, authorized 750,000,000 shares; issued 2024 - 640,547,918 shares and 2023 - 624,647,379 shares	160,052	156,076
Capital surplus	2,418,149	2,343,747
Accumulated deficit	(493,529)	(503,861)
Accumulated other comprehensive (loss) income, net	(10,266)	5,837
Less treasury stock, at cost; 2024 - 8,813,127 and 2023 - 8,535,161 shares issued and held in treasury	(34,931)	(33,734)
Total stockholders’ equity	2,039,514	1,968,104
Total liabilities and stockholders’ equity	$ 2,981,060	$ 3,011,104

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Series B preferred stock, par value (in dollars per share)	$ 0.25	$ 0.25
Series B preferred stock, shares issued (in shares)	157,756	157,776
Series B preferred stock, shares outstanding (in shares)	157,756	157,776
Series B preferred stock, liquidation preference	$ 7,889	$ 7,889
Common stock, par value (in dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized (in shares)	750,000,000	750,000,000
Common stock, shares issued (in shares)	640,547,918	624,647,379
Treasury stock common Share	8,813,127	8,535,161

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Treasury Stock	Series B Preferred Stock	Common Stock	Capital Surplus	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss), net
Balance at Dec. 31, 2021	$ 1,760,787	$ (28,021)	$ 39	$ 136,391	$ 2,034,485	$ (353,651)	$ (28,456)
Net loss	(37,348)					(37,348)
Common Stock issued to directors (68,816 shares)	417			25	392
Common stock issued for 401(k) match (978,964 shares)	4,470			245	4,225
Stock-based compensation expense	5,595				5,595
Stock Based Compensation Units Distributed	(3,677)	(3,677)		447	(447)
Common stock and Series B Preferred stock dividends declared	(12,932)					(12,932)
Common stock issued to pension plans	9,740			548	9,192
Common stock issued to Alexco Resource Corp. stockholders	68,733			4,498	64,235
Common stock issued to settle the acquired silver stream	135,000			8,700	126,300
Common stock issued under ATM program	17,278			965	16,313
Other comprehensive income	30,904						30,904
Balance at Dec. 31, 2022	1,978,967	(31,698)	39	151,819	2,260,290	(403,931)	2,448
Net loss	(84,217)					(84,217)
Common Stock issued to directors (68,816 shares)	676			31	645
Common stock issued for 401(k) match (978,964 shares)	4,608			225	4,383
Stock-based compensation expense	5,922				5,922
Common stock and Series B Preferred stock dividends declared	(15,713)			0		(15,713)
Common stock issued to pension plans	1,035			62	973
Common stock issued under ATM program	56,684			2,661	54,023
Other comprehensive income	3,389						3,389
Common stock issued to ATAC Resources Ltd.	18,789			919	17,870
Incentive Compensation Distributed	(2,036)	(2,036)		359	(359)
Balance at Dec. 31, 2023	1,968,104	(33,734)	39	156,076	2,343,747	(503,861)	5,837
Net loss	35,802					35,802
Common Stock issued to directors (68,816 shares)	796			38	758
Common stock issued for 401(k) match (978,964 shares)	4,763			235	4,528
Stock-based compensation expense	7,580				7,580
Common stock and Series B Preferred stock dividends declared	(25,470)					(25,470)
Common stock issued under ATM program	58,368			2,335	56,033
Other comprehensive income	(16,103)					(16,103)	(16,103)
Stock Issued During Period Value Compensation To Interim CEO	283			12	271
Common Stock Issued for Warrant Exercises Value				372	(372)
Incentive Compensation Distributed	5,391	(1,197)		984	5,604
Balance at Dec. 31, 2024	$ 2,039,514	$ (34,931)	$ 39	$ 160,052	$ 2,418,149	$ (493,529)	$ (10,266)

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Common stock issued to directors	150,387	125,063	68,816
Common stock issued for 401(k) match, shares (in shares)	940,392	898,894	978,964
Incentive Compensation Units Shares	3,933,870
Stock-based compensation units distributed (in shares)			2,192,795
Incentive Compensation Distributed (in Share)		1,432,323
Common Stock, Dividends, Per Share, Cash Paid	$ 0.04	$ 0.0375	$ 0.0375
Preferred Stock, Dividends Per Share, Declared	$ 3.5	$ 3.5	$ 3.5
Common Stock Issued for Warrant Exercises	1,488,050
Common stock issued to Alexco Resource Corp. shareholders ( in shares)			17,992,875
Common stock issued to settle the acquired silver stream (in shares)			34,800,990
Common stock issued under ATM program , shares	9,339,287	10,645,198	3,860,199
Stock Issued During Period Shares Compensation To Interim CEO	48,489
Stock Issued During Period, Shares, Employee Benefit Plan		249,500	2,190,000
Number of series B preffered stock coverted	20		40
Common stock issued upon conversion of series B preffered stock	64		128
Common stock issued to ATAC Resources Ltd. Shares		3,676,904

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ 35,802	$ (84,217)	$ (37,348)

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Cybersecurity Risk Management,

Cybersecurity Risk Management, Strategy, and Governance	12 Months Ended
	Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	It em 1C. Cybersecurity Risk Management and Strategy Hecla’s cybersecurity program uses multiple security measures to protect our assets, designed so that if one line of defense is compromised, additional layers exist as a backup in an effort to ensure that threats are stopped along the way . This program actively identifies internal and external threats and protects computer systems from attack, detects known threats and suspicious activity within the network, and supports response and recovery should a cyber incident occur. As part of this program, we engage third party resources to augment monitoring capabilities and review and assess the security program and advise on improvements. Additionally, we conduct a National Institute of Security and Technology (NIST) self-assessment annually to determine overall security program health. Approximately 10% of our corporate information systems technology (“IT”) budget is devoted to security programming, training, and management. Acceptable IT use policies are in place and communicated to employees and contract staff, and periodic training takes place to educate employees on the importance of cybersecurity and steps to be taken to avoid incidents. Any material cybersecurity incident that we become aware of follows our standard guidelines for crisis communications and response, engaging personnel, management, and the Board of Directors as appropriate. In cases where the materiality of a cybersecurity incident is not immediately apparent, our Vice President, Information Technology (“VP, IT”) would report the incident to his supervisor, our Senior Vice President - Chief Administrative Officer (“CAO”), and to our Senior Vice President - General Counsel ("GC"). This is consistent with our overall risk management system which relies, in part, on a “chain of command” reporting system in which supervisors monitor their respective departments and constantly seek feedback from employees or vendors in their department for potentially material events. This system is designed to ensure that information reaches the appropriate levels of the Company, including the Board of Directors. In cases where a question of materiality, public disclosure or legal exposure is in question, our CAO or GC will direct the flow of information to other members of management or the Board as appropriate. Additionally, we have standing weekly senior staff meetings where the President and CEO along with each vice president and occasionally other employees meet to discuss current issues the Company is facing. We expect that any cybersecurity incident that our VP, IT believes may be material to the Company will be discussed at these meetings, or sooner if circumstances warrant. When a cybersecurity incident is detected, we conduct an impact assessment, determine materiality, and take appropriate actions as described above. This process is also followed when notified that a software/services supplier has a cybersecurity incident. There were no material cyber security incidents discovered in 2024. See Item 1A. Risk Factors - We have had losses that could reoccur in the future; Mining accidents or other adverse events at an operation could decrease our anticipated production or otherwise adversely affect our operations; Our operations may be adversely affected by risks and hazards associated with the mining industry that may not be fully covered by insurance; The price of our stock has a history of volatility and could decline in the future; and Our information technology systems may be vulnerable to disruption which could place our systems at risk from data loss, operational failure, or compromise of confidential information . Board and Management Oversight Through the risk management processes identified above, we are confident that any material cybersecurity threats will be brought to the attention to the Board of Directors, either directly or through the Audit Committee which is governed by its charter, including the affirmative responsibility to “periodically review risk assessments from management with respect to cybersecurity, including assessments of the overall threat landscape and related strategies and investments.” One way in which the Audit Committee fulfills that requirement is by receiving regular reports from management on not only known cybersecurity threats or incidents (including related risk assessments), but the landscape more generally, including with respect to known threats, technological advancements, best practices and current events. In addition to the risk management policies described above, management regularly reviews cyber security planning, including development and management of the program, budgeting, and participation in the incident response plan. The management team involved in this review includes our CEO, CAO, Chief Financial Officer ("CFO"), GC, and the VP, IT . These reviews can also provide topics for discussion at Board and/or Audit Committee meetings . Our VP, IT, has a degree in Management Information Systems and over 35 years of experience. The fully staffed department includes resources dedicated to cybersecurity who monitors our threat detection and response tools for any attempted or successful hacks or other incursions into our IT environment, both externally and internally. These are reviewed and mitigated where appropriate, and escalated if necessary, via the processes noted above.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	Hecla’s cybersecurity program uses multiple security measures to protect our assets, designed so that if one line of defense is compromised, additional layers exist as a backup in an effort to ensure that threats are stopped along the way .
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	Board and Management Oversight Through the risk management processes identified above, we are confident that any material cybersecurity threats will be brought to the attention to the Board of Directors, either directly or through the Audit Committee which is governed by its charter, including the affirmative responsibility to “periodically review risk assessments from management with respect to cybersecurity, including assessments of the overall threat landscape and related strategies and investments.” One way in which the Audit Committee fulfills that requirement is by receiving regular reports from management on not only known cybersecurity threats or incidents (including related risk assessments), but the landscape more generally, including with respect to known threats, technological advancements, best practices and current events. In addition to the risk management policies described above, management regularly reviews cyber security planning, including development and management of the program, budgeting, and participation in the incident response plan. The management team involved in this review includes our CEO, CAO, Chief Financial Officer ("CFO"), GC, and the VP, IT . These reviews can also provide topics for discussion at Board and/or Audit Committee meetings . Our VP, IT, has a degree in Management Information Systems and over 35 years of experience. The fully staffed department includes resources dedicated to cybersecurity who monitors our threat detection and response tools for any attempted or successful hacks or other incursions into our IT environment, both externally and internally. These are reviewed and mitigated where appropriate, and escalated if necessary, via the processes noted above.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	Through the risk management processes identified above, we are confident that any material cybersecurity threats will be brought to the attention to the Board of Directors, either directly or through the Audit Committee which is governed by its charter, including the affirmative responsibility to “periodically review risk assessments from management with respect to cybersecurity, including assessments of the overall threat landscape and related strategies and investments.”
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	One way in which the Audit Committee fulfills that requirement is by receiving regular reports from management on not only known cybersecurity threats or incidents (including related risk assessments), but the landscape more generally, including with respect to known threats, technological advancements, best practices and current events.
Cybersecurity Risk Role of Management [Text Block]	In addition to the risk management policies described above, management regularly reviews cyber security planning, including development and management of the program, budgeting, and participation in the incident response plan. The management team involved in this review includes our CEO, CAO, Chief Financial Officer ("CFO"), GC, and the VP, IT . These reviews can also provide topics for discussion at Board and/or Audit Committee meetings . Our VP, IT, has a degree in Management Information Systems and over 35 years of experience. The fully staffed department includes resources dedicated to cybersecurity who monitors our threat detection and response tools for any attempted or successful hacks or other incursions into our IT environment, both externally and internally. These are reviewed and mitigated where appropriate, and escalated if necessary, via the processes noted above.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	The management team involved in this review includes our CEO, CAO, Chief Financial Officer ("CFO"), GC, and the VP, IT .
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	Our VP, IT, has a degree in Management Information Systems and over 35 years of experience.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	The fully staffed department includes resources dedicated to cybersecurity who monitors our threat detection and response tools for any attempted or successful hacks or other incursions into our IT environment, both externally and internally. These are reviewed and mitigated where appropriate, and escalated if necessary, via the processes noted above.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Note 1 - The Company

Note 1 - The Company	12 Months Ended
	Dec. 31, 2024
Notes To Financial Statements [Abstract]
The Company	Note 1: The Company Hecla Mining Company, and its affiliates and subsidiaries (collectively, “Hecla,” “we,” “us” or “the Company”), is the largest silver producer in the United States and Canada. In addition to operating mines in Alaska, Idaho and Quebec, Canada, the Company is developing a mine in the Yukon, Canada, and owns a number of exploration and pre-development projects in world-class silver and gold mining districts throughout North America. Our current holding company structure dates from the incorporation of Hecla Mining Company in 2006 and the renaming of our subsidiary (previously Hecla Mining Company) as Hecla Limited. Hecla Limited was incorporated on October 14, 1891 as an Idaho Corporation in northern Idaho’s Silver Valley. We believe we are the oldest operating precious metals mining company in the United States and the largest silver producer in the United States. Our corporate offices are in Coeur d’Alene, Idaho and Vancouver, British Columbia. The cash flow and profitability of the Company’s operations are significantly affected by the market price of silver, gold, lead and zinc, which are affected by numerous factors beyond our control. References to “CAD” and “MXN” refer to the Canadian Dollar and Mexican Peso, respectively.

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2024
Notes To Financial Statements [Abstract]
Summary of Significant Accounting Policies	Note 2: Summary of Significant Accounting Policies A. Principles of Consolidation, Basis of Presentation and Other Information — Our Consolidated Financial Statements have been prepared in accordance with GAAP, and include our accounts and our wholly-owned subsidiaries’ accounts. All inter-company balances and transactions have been eliminated in consolidation. Equity method accounting is applied for our investment in Cascadia Minerals Ltd. ("Cascadia"), over which the Company does not have control, but does have significant influence over the activities that most significantly impact the investments operations and financial performance. B. Assumptions and Use of Estimates — Preparing financial statements requires management to make estimates and assumptions that affect the reported amounts and related disclosure of assets, liabilities, revenue and expenses at the date of the consolidated financial statements and reporting periods. We consider our most significant accounting estimates to be future metals prices; obligations for environmental, reclamation and closure matters and mineral reserves and resources. Other significant areas requiring the use of management assumptions and estimates relate to reserves for contingencies and litigation; asset impairments, including long-lived assets; valuation of deferred tax assets; and post-employment, post-retirement and other employee benefit assets and liabilities. We have based our estimates on historical experience and various other assumptions that we believe to be reasonable. Accordingly, actual results may differ materially from these estimates under different assumptions or conditions. C. Cash and Cash Equivalents — Cash and cash equivalents consist of all cash balances and highly liquid investments with a remaining maturity of three months or less when purchased and are carried at fair value. Cash and cash equivalents are invested in money market funds, certificates of deposit, U.S. government and federal agency securities, municipal securities and corporate bonds. At certain times, amounts on deposit may exceed federal deposit insurance limits. D. Investments — We determine the appropriate classification of our investments at the time of purchase and re-evaluate such determinations at each reporting date. Currently all our investments are marketable equity securities and are carried at fair value or accounted for under the equity method. Marketable securities we anticipate selling within the next twelve months are included in other current assets. Gains and losses on the sale of securities are recognized on a specific identification basis. Gains and losses of marketable securities and investments accounted for under the equity method are included as a component of a separate line item, “fair value adjustments, net,” and "Other income", respectively, both of which are included on our consolidated statements of operations and comprehensive income (loss). E. Inventories — Major types of inventories include materials and supplies and metals product inventory, which is determined by the stage at which the ore is in the production process (stockpiled ore, in-process and finished goods). Product inventories are stated at the lower of full cost of production or estimated net realizable value based on current metals prices. Materials and supplies inventories are stated at average cost. Stockpiled ore inventory represents ore that has been mined, hauled to the surface, and is available for further processing. Stockpiles are measured by estimating the number of tons added and removed from the stockpile, the amount of contained metal ounces or pounds (based on assay data) and the estimated metallurgical recovery rates (based on the expected processing method). Costs are allocated to a stockpile based on relative values of material stockpiled and processed using current mining costs incurred up to the point of stockpiling the ore, including applicable overhead, depreciation, depletion and amortization relating to mining operations, and removed at each stockpile’s average cost per recoverable unit. In-process inventory represents material that is currently in the process of being converted to a saleable product. Conversion processes vary depending on the nature of the ore and the specific processing facility, but include mill in-circuit, flotation, and carbon-in-leach. In-process material is measured based on assays of the material fed into the process and the projected recoveries of the respective processing plants. In-process inventory is valued at the lower of the average cost of the material fed into the process attributable to the source material coming from the mine and stockpile plus the in-process conversion costs, including applicable depreciation, depletion and amortization relating to the process facilities incurred to that point in the process, or net realizable value. Finished goods inventory includes doré and concentrates at our operations, doré in transit to refiners or at refiners waiting to be processed, and bullion in our accounts at refineries. F. Restricted Cash and Cash Equivalents — Restricted cash and cash equivalents primarily represent investments in certificates of deposit and bonds of U.S. government agencies and are restricted primarily for reclamation funding or surety bonds. Restricted cash and cash equivalents balances are carried at fair value. Non-current restricted cash and cash equivalents is reported in a separate line on the consolidated balance sheets and totaled $ 1.2 million at December 31, 2024 and 2023, respectively. G. Properties, Plants, Equipment and Mine Development – Costs are capitalized when it has been determined an ore body can be economically developed pursuant to certain internal investment criteria. The development stage begins at new projects when our management and/or Board of Directors makes the decision to bring a mine into commercial production, and ends when the production stage, or exploitation of reserves, begins. Expenditures incurred during the development and production stages for new assets, new facilities, alterations to existing facilities that extend the useful lives of those facilities, and major mine development expenditures are capitalized, including primary development costs such as costs of building access ways, shaft sinking, lateral development, drift development, ramps and infrastructure developments. Costs to improve, alter, or rehabilitate primary development assets which appreciably extend the life, increase capacity, or improve the efficiency or safety of such assets are also capitalized. The costs of removing overburden and waste materials to access the ore body at an open-pit mine prior to the production stage are referred to as “pre-stripping costs.” Pre-stripping costs are capitalized during the development stage. Where multiple open pits exist at an operation utilizing common facilities, pre-stripping costs are capitalized at each pit. The production stage of a mine commences when saleable materials, beyond a de minimis amount, are produced. Stripping costs incurred during the production stage are treated as variable production costs included as a component of inventory, to be recognized in cost of sales and other direct production costs in the same period as the revenue from the sale of inventory. When stripping costs incurred during the production phase result in the construction of an asset with an alternative use, such as a tailings storage facility, a portion of those stripping costs are capitalized. Costs for exploration, pre-development, secondary development at operating mines, including drilling costs related to those activities (discussed further below), and maintenance and repairs on capitalized properties, plants and equipment are charged to operations as incurred. Exploration costs include those relating to activities carried out in search of previously unidentified resources or exploration targets, (a) at undeveloped concessions, or (b) at operating mines already containing proven and probable reserves, where a determination remains pending as to whether new target deposits outside of the existing reserve areas can be economically developed. Pre-development activities involve costs incurred in the exploration stage that may ultimately benefit production, such as underground ramp development, which are expensed due to the lack of evidence of economic viability, which is necessary to demonstrate future recoverability of these expenses. At an underground mine, secondary development costs are incurred for preparation of an ore body for production in a specific ore block, stope or work area, providing a relatively short-lived benefit only to the mine area they relate to, and not to the ore body as a whole. Primary development costs benefit long-term production, multiple mine areas, or the ore body as a whole, and are therefore capitalized. Drilling, development and related costs are either classified as exploration, pre-development or secondary development, as defined above, and charged to operations as incurred, or capitalized, based on the following criteria: • whether the costs are incurred to further define resources or exploration targets at and adjacent to existing reserve areas or intended to assist with mine planning within a reserve area; • whether the drilling or development costs relate to an ore body that has been determined to be commercially mineable, and a decision has been made to put the ore body into commercial production; and • whether, at the time the cost is incurred: (a) the expenditure embodies a probable future benefit that involves a capacity, singly or in combination with other assets, to contribute directly or indirectly to future net cash inflows, (b) we can obtain the benefit and control others’ access to it, and (c) the transaction or event giving rise to our right to or control of the benefit has already occurred. If all of these criteria are met, drilling, development and related costs are capitalized. Drilling and development costs not meeting all of these criteria are expensed as incurred. The following factors are considered in determining whether or not the criteria listed above have been met, and capitalization of drilling and development costs is appropriate: • completion of a favorable economic study and mine plan for the ore body targeted; • authorization of development of the ore body by management and/or the Board of Directors; and • there is a justifiable expectation, based on applicable laws and regulations, that issuance of permits or resolution of legal issues and/or contractual requirements necessary for us to have the right to or control of the future benefit from the targeted ore body have been met. Drilling and related costs of approximately $ 12.4 million , $ 17.6 million, and $ 11.2 million for the years ended December 31, 2024, 2023 and 2022, respectively, met our criteria for capitalization listed above at our production stage properties. When assets are retired or sold, the costs and related allowances for depreciation and amortization are eliminated from the accounts and any resulting gain or loss is reflected in current period net income (loss). Our mineral interests, which are tangible assets, include acquired undeveloped mineral interests and royalty interests. Undeveloped mineral interests include: (i) resources which are measured, indicated or inferred with insufficient drill spacing or quality to qualify as proven and probable reserves; and (ii) inferred material and exploration targets not immediately adjacent to existing proven and probable reserves but accessible within the immediate mine infrastructure. Residual values for undeveloped mineral interests represent the expected fair value of the interests at the time we plan to convert, develop, further explore or dispose of the interests and are evaluated at least annually. H. Depreciation, Depletion and Amortization — Capitalized costs are depreciated or depleted using the straight-line method or units-of-production method at rates sufficient to depreciate such costs over the shorter of estimated productive lives of such facilities or the useful life of the individual assets. Productive lives range from 2 to 14 years, but do not exceed the useful life of the individual asset. Determination of expected useful lives for amortization calculations are made on a property-by-property or asset-by-asset basis at least annually. Our estimates for reserves and resources are a key component in determining our units-of-production depreciation rates, with net book value of many assets depreciated over remaining estimated reserves. Reserves are estimates made by our professional technical personnel of the amount of metals that they believe could be economically and legally extracted or produced at the time of the reserve determination (discussed in J. Proven and Probable Mineral Reserves below). Our estimates of proven and probable mineral reserves and resources may change, possibly in the near term, resulting in changes to depreciation, depletion and amortization rates in future reporting periods. Undeveloped mineral interests and value beyond proven and probable reserves are not amortized until such time as there are proven and probable reserves or the related mineralized material is converted to proven and probable reserves. At that time, the basis of the mineral interest is amortized on a units-of-production basis. Pursuant to our policy on impairment of long-lived assets (discussed further below), if it is determined that an undeveloped mineral interest cannot be economically converted to proven and probable reserves and its carrying value exceeds its estimated undiscounted future cash flows, the basis of the mineral interest is reduced to its fair value and an impairment loss is recorded to expense in the period in which it is determined to be impaired. I. Impairment of Long-lived Assets — Management reviews and evaluates the net carrying value of all facilities, including idle facilities, for impairment upon the occurrence of events or changes in circumstances that indicate that the related carrying amounts may not be recoverable. We perform the test for recoverability of each property based on the estimated probability adjusted undiscounted expected future cash flows that will be generated from operations at each property, potential future asset disposals, the estimated salvage value of the surface plant and equipment, and the value associated with property interests. Although management has made what it believes to be a reasonable estimate of factors based on current conditions and information, assumptions underlying future cash flows, which includes the estimated value of resources and exploration targets, are subject to significant risks and uncertainties. Estimates of undiscounted expected future cash flows are dependent upon, among other factors, estimates of: (i) metals to be recovered from proven and probable mineral reserves and identified resources and exploration targets beyond proven and probable reserves, (ii) future production and capital costs, (iii) estimated metals prices (considering current and historical prices, forward pricing curves and related factors) over the estimated remaining mine life, (iv) market values of mineral interests and (v) potential estimated sales value. It is possible that changes could occur in the near term that could adversely affect our estimate of future cash flows to be generated from our operating properties. If estimated probability adjusted undiscounted expected cash flows are less than the carrying value of a property, an impairment loss is recognized for the difference between the carrying value and fair value of the property. J. Proven and Probable Mineral Reserves — At least annually, management reviews the reserves used to estimate the quantities and grades of ore at our mines which we believe can be recovered and sold economically. Management’s calculations of proven and probable mineral reserves are based on financial, engineering and geological estimates, including future metals prices and operating costs, and an assessment of our ability to obtain the permits required to mine and process the material. From time to time, management obtains external audits or reviews of reserves. Reserve estimates will change as existing reserves are depleted through production, as additional reserves are proven and added to the estimates and as market prices of metals, production or capital costs, smelter terms, the grade or tonnage of the deposit, throughput, dilution of the ore or recovery rates change. K. Leases — Contractual arrangements are assessed at inception to determine if they represent or contain a lease. Right-of-use (“ROU”) assets related to operating leases are separately reported in the Consolidated Balance Sheets. ROU assets related to finance leases are included in Properties, plants, equipment and mine development, net. Operating and finance lease ROU assets and lease liabilities are recognized at the lease commencement date based on the present value of the future lease payments over the lease term. When the rate implicit to the lease cannot be readily determined, we utilize our incremental borrowing rate in determining the present value of the future lease payments. The incremental borrowing rate is derived from information available at the lease commencement date and represents the rate of interest that we would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment. The ROU asset includes any lease payments made and lease incentives received prior to the commencement date. Operating lease ROU assets also include any cumulative prepaid or accrued rent when the lease payments are uneven throughout the lease term. The ROU assets and lease liabilities may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. L. Income and Mining Taxes — We provide for federal, state and foreign income taxes currently payable, as well as those deferred, due to timing differences between reporting income and expenses for financial statement purposes versus tax purposes. Federal, state and foreign tax benefits are recorded as a reduction of income taxes, when applicable. We record deferred tax assets and liabilities for expected future tax consequences of temporary differences between the financial statement carrying amounts and the tax bases of those assets and liabilities, as well as operating loss and tax credit carryforwards, using enacted tax rates in effect in the years in which the differences are expected to reverse. We evaluate uncertain tax positions in a two-step process, whereby (i) it is determined whether it is more likely than not that the tax positions will be sustained based on the technical merits of the position and (ii) for those tax positions that meet the more-likely-than-not recognition threshold, the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with the related tax authority would be recognized. We evaluate our ability to realize deferred tax assets by considering the sources and timing of taxable income, including the reversal of existing temporary differences, the ability to carryback tax attributes to prior periods, qualifying tax-planning strategies, and estimates of future taxable income exclusive of reversing temporary differences. In determining future taxable income, the Company’s assumptions include the amount of pre-tax operating income according to different state, federal and international taxing jurisdictions, the origination of future temporary differences, and the implementation of feasible and prudent tax-planning strategies. Should we determine that a portion of our deferred tax assets will not be realized, a valuation allowance is recorded in the period that such determination is made. When we determine, based on the existence of sufficient evidence, that more or less of the deferred tax assets are more likely than not to be realized, an adjustment to the valuation allowance is made in the period such a determination is made. We classify as income taxes mine license taxes incurred in the states of Alaska and Idaho, the net proceeds taxes incurred in Nevada, mining duties in Mexico, and resource taxes incurred in Quebec and Yukon, Canada. M. Reclamation and Remediation Costs (Asset Retirement Obligations) — At our operating properties, we record a liability for the present value of our estimated environmental remediation costs, and the related asset created with it, in the period in which the liability is incurred. The liability is accreted and the asset is depreciated over the life of the related assets. Adjustments for changes resulting from the passage of time and changes to either the timing or amount of the original present value estimate underlying the obligation are made in the period incurred. At our non-operating properties, we accrue costs associated with environmental remediation obligations when it is probable that such costs will be incurred and they are reasonably estimable. Accruals for estimated losses from environmental remediation obligations have historically been recognized no later than completion of the remediation feasibility study for such facility and are charged to current earnings under provision for closed operations and environmental matters. Costs of future expenditures for environmental remediation are not discounted to their present value unless subject to a contractually obligated fixed payment schedule. Such costs are based on management’s current estimate of amounts to be incurred when the remediation work is performed, within current laws and regulations. Future closure, reclamation and environmental-related expenditures are difficult to estimate in many circumstances, due to the early stage nature of investigations, uncertainties associated with defining the nature and extent of environmental contamination, the application of laws and regulations by regulatory authorities, and changes in reclamation or remediation technology. We periodically review accrued liabilities for such reclamation and remediation costs as evidence becomes available indicating that our liabilities have potentially changed. Changes in estimates at our non-operating properties are reflected in current period net income (loss). N. Revenue Recognition and Trade Accounts Receivable — Sales of all metals products sold directly to customers, including by-product metals, are recorded as revenues and accounts receivable upon completion of the performance obligations and transfer of control of the product to the customer. For sales of metals from refined doré, the performance obligation is met, the transaction price is known, and revenue is recognized at the time of transfer of control of the agreed-upon metal quantities to the customer by the refiner. For sales of unrefined doré and carbon material, the performance obligation is met, the transaction price is known, and revenue is recognized at the time of transfer of title and control of the doré or carbon containing the agreed-upon metal quantities to the customer. For concentrate sales, the performance obligation is met, the transaction price can be reasonably estimated, and revenue is recognized generally at the time of shipment at estimated forward prices for the anticipated month of settlement. Due to the time elapsed from shipment to the customer and the final settlement with the customer, we must estimate the prices at which sales of our concentrates will be settled. Previously recorded sales and accounts receivable are adjusted to estimated settlement metals prices until final settlement by the customer. As discussed in P. Risk Management Contracts below, we seek to mitigate this exposure by using financially-settled forward contracts for some of the metals contained in our concentrate shipments. Refining, selling and shipping costs related to sales of doré, metals from doré, and carbon are recorded to cost of sales and other direct production costs as incurred. Sales and accounts receivable for concentrate shipments are recorded net of charges by the customers for treatment, refining, smelting losses, and other charges negotiated by us with the customers. Charges are estimated by us upon shipment of concentrates based on contractual terms, and actual charges typically do not vary materially from our estimates. Costs charged by customers include fixed costs per ton of concentrate, and price escalators which allow the customers to participate in the increase of lead and zinc prices above a negotiated baseline. The Company's wholly owned subsidiary Elsa Reclamation and Development Company Ltd. ("ERDC"), generates revenue from performing environmental remediation services for the Crown-Indigenous Relations and Northern Affairs Canada ("CIRNAC"), a department of the Federal Government of Canada. ERDC and CIRNAC agree on annual work plans, which detail the scope of activities to be completed. Based on the work plan, the performance obligations to be met and the transaction price is known. Revenue is recognized on a monthly basis, as the required environmental remediation services performance obligations are completed and CIRNAC approves the activities performed. Modification to the scope of work would be agreed to separately with CIRNAC as no work outside of the work plan is reimbursable. O. Foreign Currency — The functional currency for our operations located in the U.S., Mexico and Canada is the U.S. dollar (“USD”) for all periods presented. Accordingly, for Casa Berardi and Keno Hill in Canada and San Sebastian in Mexico, we have translated our monetary assets and liabilities at the period-end exchange rate, and non-monetary assets and liabilities at historical rates, with income and expenses translated at the average exchange rate for the current period. All translation gains and losses have been included in the current period net income (loss). Expenses incurred at our foreign operations and denominated in CAD and MXN expose us to exchange rate fluctuations between those currencies and the USD. As discussed in P. Risk Management Contracts below, we seek to mitigate this exposure by using financially-settled forward contracts to sell CAD. P. Risk Management Contracts — We use derivative financial instruments as part of an overall risk-management strategy as a means of managing exposure to changes in metals prices and exchange rate fluctuations between the USD and CAD. We do not hold or issue derivative financial instruments for speculative trading purposes. We measure derivative contracts as assets or liabilities based on their fair value. Amounts recognized for the fair value of derivative asset and liability positions with the same counterparty and which would be settled on a net basis are offset against each other on our consolidated balance sheets. Gains or losses resulting from changes in the fair value of derivatives in each period are recorded either in current earnings or other comprehensive income (“OCI”), depending on the use of the derivative, whether it qualifies for hedge accounting and whether that hedge is effective. Amounts deferred in OCI are reclassified to sales of products (for metals price-related contracts) or cost of sales and other direct production costs (for foreign currency-related contracts). Ineffective portions of any change in fair value of a derivative are recorded in current period other operating income (expense). For derivatives qualifying as hedges, when the hedged items are sold, extinguished or terminated, or it is determined the hedged transactions are no longer likely to occur, gains or losses on the derivatives are reclassified from OCI to current earnings. As of December 31, 2024 and 2023, certain of our foreign currency-related forward contracts and metals prices hedges qualified for hedge accounting, with unrealized gains and loss related to the effective portion of the contracts included in OCI. Q. Stock-Based Compensation — The fair values of equity instruments granted to employees that have vesting periods are expensed over the vesting periods on a straight-line basis. The fair values of instruments having no vesting period are expensed when granted. Stock-based compensation expense is recorded among general and administrative expenses, exploration and pre-development and cost of sales and other direct production costs. R. Basic and Diluted Income (Loss) Per Common Share — We calculate basic income (loss) per share on the basis of the weighted average number of shares of common stock outstanding during the period. Diluted income per share is calculated using the weighted average number of shares of common stock outstanding during the period plus the effect of potential dilutive common shares during the period using the treasury stock and if-converted methods. S. Comprehensive Income (Loss) — In addition to net income (loss), comprehensive income (loss) includes certain changes in equity during a period, such as adjustments to minimum pension liabilities, adjustments to recognize the over-funded or under-funded status of our defined benefit pension plans, and the change in fair value of derivative contracts designated as hedge transactions, net of tax, if applicable. T. Reclassifications — Certain amounts in prior years have been reclassified to conform with the 2024 presentation. U. New Accounting Pronouncements — Accounting Standards Updates that Became Effective in the Current Period In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, amending reportable segment disclosure requirements to include disclosure of incremental segment information on an annual and interim basis. Among the disclosure enhancements are new disclosures regarding significant segment expenses that are regularly provided to the chief operating decision-maker and included within each reported measure of segment profit or loss, as well as other segment items bridging segment revenue to each reported measure of segment profit or loss. The amendments in ASU 2023-07 are effective for fiscal years beginning after December 15, 2023, and for interim periods within fiscal years beginning after December 15, 2024, and are applied retrospectively. We retrospectively adopted the segment disclosures required under these amended in the year ended December 31, 2024 consolidated financial statements, with no changes to our previously disclosed reportable segments. Accounting Standards Updates to Become Effective in Future Periods In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvement to Income Tax Disclosures, amending income tax disclosure requirements for the effective tax rate reconciliation and income taxes paid. The amendments in ASU 2023-09 are effective for fiscal years beginning after December 15, 2024 and are applied prospectively. Early adoption and retrospective application of the amendments are permitted. The amendments apply to income tax disclosures only, and we will comply with the additional disclosure requirements required by the standard. In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income (Topic 220): Expense Disaggregation Disclosures, which includes amendments to require the disclosure of certain specific costs and expenses that are included in a relevant expense caption on the face of the income statement. Specific costs and expenses that would be required to be disclosed include: purchases of inventory, employee compensation, depreciation and intangible asset amortization. Additionally, a qualitative description of other items is required, equal to the difference between the relevant expense caption and the separately disclosed specific costs. The amendments in ASU 2024-03 are effective for fiscal years beginning after December 15, 2026, and for interim periods beginning after December 15, 2027, and are applied either prospectively or retrospectively at the option of the Company. We are evaluating the impact of the amendments on our consolidated financial statements and disclosures.

Note 3 - Investments

Note 3 - Investments	12 Months Ended
	Dec. 31, 2024
Schedule of Investments [Abstract]
Investments	Note 3: Investments At December 31, 2024 and 2023, the fair value of our non-current investments was $ 33.9 million and $ 33.7 million, respectively. Our non-current investments consist of marketable equity securities which are carried at fair value and our investment in Cascadia which was acquired as part of the acquisition of ATAC Resources Ltd. and accounted for under the equity method with a carrying value of $ 0.7 million and $ 1.4 million as of December 31, 2024 and 2023, respectively. We invested an additional $ 0.1 million in Cascadia in 2024, and recognized $ 0.7 million and $ 0.3 million in equity losses of Cascadia during 2024 and 2023, respectively, which is included in the line item "Other income" in our Consolidated Statement of Operations and Comprehensive Income (Loss). We acquired marketable equity securities having a cost basis of $ 9.0 million in 2023. During 2024 we recognized $3.7 million in unrealized gains and in 2023 and 2022, we recognized $ 0.2 million and $ 5.6 million in net unrealized losses, respectively, in current earnings.

Note 4 - Business Segments, Sal

Note 4 - Business Segments, Sales of Products and Significant Customers	12 Months Ended
	Dec. 31, 2024
Segment Reporting [Abstract]
Business Segments, Sales of Products and Significant Customers	Note 4: Business Segments, Sales of Products and Significant Customers We discover, acquire and develop mines and other mineral interests and produce and market (i) concentrates containing silver, gold, lead and zinc, (ii) carbon material containing silver and gold, and (iii) doré containing silver and gold. We are currently organized and managed in four segments: Greens Creek, Lucky Friday, Keno Hill and Casa Berardi. Effective January 2024, we revised our internal reporting provided to our Chief Operating Decision Maker ("CODM") to no longer include any financial performance information for our Nevada assets ("Nevada"), reflecting the current status of Nevada being on care and maintenance. General corporate activities not associated with operating mines and their various exploration activities, idle properties and environmental remediation services in the Yukon, Canada, and the previously separately reported Nevada assets are presented as “Other". The presentation of the prior period information disclosed below has been revised to reflect this change. The Company regularly reviews its segment reporting for alignment with its strategic goals and operational structure as well as for evaluation of business performance and the allocation of resources by Hecla's President and Chief Executive Officer, who has been identified as our Chief Operating Decision Maker . The CODM evaluates the performance for all of our reportable segments based on segment gross profit or loss. For all segments, the CODM uses segment gross profit or loss to assess segment performance and allocate resources for each segment predominantly in the annual budget and forecasting process. The CODM considers budget to actual variances on a monthly basis when making decisions about allocating capital and personnel to the segments. Significant segment expenses that are components of total cost of goods sold and drive the financial performance of our reportable segments are (i) salaries, wages and other benefits, (ii) contractors, (iii) consumables (iv) change in product inventory and (v) other direct production costs. In further evaluating the operational performance of each segment, the CODM also considers the amount of metals production versus budget, and the grade of the metal processed. General corporate activities not associated with operating mines and their various exploration activities, as well as idle properties and environmental remediation services in the Yukon, Canada, are presented as “other.” The nature of the items that reconcile gross profit (loss) to income (loss) before income and mining taxes are not related to our reportable segments. The tables below present information about our reportable segments as of and for the years ended December 31, 2024, 2023 and 2022 (in thousands). Year ended December 31, 2024 Greens Creek Lucky Friday Keno Hill Casa Berardi Other Total Metal sales $ 421,574 $ 203,154 $ 74,962 $ 209,679 $ — $ 909,369 Environmental remediation services — — — — 20,556 20,556 Intersegment sales — — 3,834 — — 3,834 Reconciliation of sales 421,574 203,154 78,796 209,679 20,556 933,759 Elimination of intersegment sales — — ( 3,834 ) — — ( 3,834 ) Total consolidated sales 929,925 Cost of sales and other direct production costs Salaries, wages and other benefits 69,990 52,879 29,658 49,345 206 202,078 Contractors 6,135 14,154 22,960 23,982 19,696 86,927 Materials and consumables 93,223 39,957 28,648 55,867 625 218,320 Product inventory change 5,858 ( 2,628 ) ( 8,902 ) ( 3,269 ) — ( 8,941 ) Other direct production costs 39,471 1,281 13,216 24,854 — 78,822 Transfer to ramp-up and suspension costs (a) — ( 2,207 ) ( 26,754 ) — — ( 28,961 ) Depreciation, depletion and amortization 53,450 41,049 16,136 72,835 — 183,470 Gross profit (loss) $ 153,447 $ 58,669 $ — $ ( 13,935 ) $ 29 $ 198,210 Other operating expenses (b) 91,934 Income from operations 106,276 Other Expense: Interest expense ( 49,834 ) Fair value adjustments, net ( 2,204 ) Foreign exchange gain, net 7,552 Other income 4,426 Income before income and mining taxes $ 66,216 Capital additions $ 47,795 $ 49,592 $ 54,869 $ 60,704 $ 1,532 $ 214,492 Identifiable assets 564,334 587,945 413,982 687,080 727,719 2,981,060 (a) Total cost of sales in excess of sales value are transferred to ramp-up and suspension costs. (b) Other operating expense items include general and administrative, exploration and pre-development, ramp-up and suspension costs, provision for closed operations and environmental matters, write-down of property, plant and equipment and other operating (income) expense, net. Lucky Friday's income from operations for 2024 includes $ 50.0 million of business interruption and property damage insurance proceeds received during the respective periods related to the fire which suspended Lucky Friday's operations from August 2023 through January 8, 2024. The insurance proceeds received are recorded as part of "Other operating (income) expense, net" in our Consolidated Statements of Operations and Comprehensive Income (Loss). During 2024, the Company wrote down $ 14.6 million of property, plant and mine development which had no salvage value. Of this amount, $ 13.9 million is included in Lucky Friday's income from operations and is related to the remote vein miner machine for which (i) we no longer had a use following the success of the Underhand Closed Bench ("UCB") mining method, (ii) we had been unsuccessful in locating a buyer, and (iii) the vendor advised us during the period that it would discontinue support for the program. The write down is recorded as part of "Write down of Property, Plant and Mine Development" in our Consolidated Statements of Operations and Comprehensive Income (Loss). Year ended December 31, 2023 Greens Creek Lucky Friday Keno Hill Casa Berardi Other Total Metal sales $ 384,504 $ 116,284 $ 35,518 $ 177,678 $ 960 $ 714,944 Environmental remediation services — — — — 5,283 5,283 Intersegment sales — — — — — — Reconciliation of sales 384,504 116,284 35,518 177,678 6,243 720,227 Elimination of intersegment sales - Total consolidated sales 720,227 Cost of sales and other direct production costs Salaries, wages and employee benefits 68,183 43,142 21,569 51,201 3,029 187,124 Contractors 5,917 8,681 10,472 31,912 1,125 58,107 Materials and consumables 89,850 27,030 18,018 48,130 1,606 184,634 Product inventory change 4,266 8,014 ( 1,163 ) 2,913 269 14,299 Other direct production costs 37,684 ( 1,460 ) 12,138 23,376 1,207 72,945 Transfer to ramp-up and suspension costs (a) - ( 25,548 ) ( 29,793 ) ( 2,228 ) ( 1,036 ) ( 58,605 ) Depreciation, depletion and amortization 53,995 24,325 4,277 66,037 140 148,774 Gross profit (loss) $ 124,609 $ 32,100 $ — $ ( 43,663 ) $ ( 97 ) $ 112,949 Other operating expenses (b) 157,623 Loss from operations ( 44,674 ) Other Expense: Interest expense ( 43,319 ) Fair value adjustments, net 2,925 Foreign exchange loss, net ( 3,810 ) Other income 5,883 Loss before income and mining taxes $ ( 82,995 ) Capital additions $ 43,542 $ 65,337 $ 44,672 $ 70,056 $ 280 $ 223,887 Identifiable assets 569,369 578,110 362,986 683,035 817,604 3,011,104 (a) Total cost of sales in excess of sales value are transferred to ramp-up and suspension costs. (b) Other operating expense items include general and administrative, exploration and pre-development, ramp-up and suspension costs, provision for closed operations and environmental matters, write-down of property, plant and equipment and other operating (income) expense, net. Year ended December 31, 2022 Greens Creek Lucky Friday Keno Hill Casa Berardi Other Total Metal sales $ 335,062 $ 147,814 $ — $ 235,136 $ 420 $ 718,432 Environmental remediation services — — — — 473 473 Intersegment sales — — — — — — Reconciliation of sales 335,062 147,814 — 235,136 893 718,905 Elimination of intersegment sales — Total consolidated sales 718,905 Cost of sales and other direct production costs Salaries, wages and employee benefits 64,142 42,155 863 58,678 6,186 172,024 Contractors 7,550 11,384 482 52,715 3,835 75,966 Materials and consumables 81,538 29,868 459 54,896 5,135 171,896 Product inventory change ( 5,885 ) ( 2,302 ) - ( 186 ) ( 9,554 ) ( 17,927 ) Other direct production costs 36,462 1,789 496 21,833 ( 1,428 ) 59,152 Transfer to ramp-up and suspension costs (a) - - ( 2,300 ) - - ( 2,300 ) Depreciation, depletion and amortization 48,911 33,704 - 60,962 361 143,938 Gross profit (loss) $ 102,344 $ 31,216 $ — $ ( 13,762 ) $ ( 3,642 ) $ 116,156 Other operating expenses (b) 128,594 Loss from operations ( 12,438 ) Other Expense: Interest expense ( 42,793 ) Fair value adjustments, net ( 4,723 ) Foreign exchange gain, net 7,211 Other income 7,829 Loss before income and mining taxes $ ( 44,914 ) Capital additions $ 36,898 $ 50,992 $ 19,725 $ 39,667 $ 2,096 $ 149,378 Identifiable assets 582,687 571,510 276,096 681,631 815,248 2,927,172 (a) Total cost of sales in excess of sales value are transferred to ramp-up and suspension costs. (b) Other operating expense items include general and administrative, exploration and pre-development, ramp-up and suspension costs, provision for closed operations and environmental matters, write-down of property, plant and equipment and other operating (income) expense, net. The following are our long-lived assets by geographic area as of December 31, 2024 and 2023 (in thousands): 2024 2023 United States $ 1,684,890 $ 1,698,285 Canada 1,001,612 960,109 Mexico 7,617 7,856 Total long-lived assets $ 2,694,119 $ 2,666,250 Our products consist of metal concentrates and carbon material, which we sell to custom smelters, metal traders and third-party processors, and unrefined bullion bars (doré), which may be sold as doré or further refined before sale to precious metal traders. Revenue is recognized upon the completion of the performance obligations and transfer of control of the product to the customer. For sales of metals from refined doré at Casa Berardi, the performance obligation is met, the transaction price is known, and revenue is recognized at the time of transfer of control of the agreed-upon metal quantities to the customer by the refiner. Refining, selling and shipping costs related to sales of doré and metals from doré are recorded to cost of sales as incurred. For sales of carbon materials, transfer of control takes place, the performance obligation is met, the transaction price is known, and revenue is recognized generally at the time of arrival at the customer's facility. For concentrate sales, which we currently have at Greens Creek, Lucky Friday, and Keno Hill, the performance obligation is met, the transaction price can be reasonably estimated, and revenue is recognized generally at the time of shipment. Concentrates sold at Lucky Friday typically leave the mine and are received by the customer within the same day. However, there is a period of time between shipment of concentrates from Greens Creek and Keno Hill and their physical receipt by the customer, and judgment is required in determining when control has been transferred to the customer and the performance obligation has been met for those shipments. We have determined control is met, title is transferred and the performance obligation is met upon shipment of concentrate parcels from Greens Creek and Keno Hill because, at that time, 1) legal title is transferred to the customer, 2) the customer has accepted the parcel and obtained the ability to realize all of the benefits from the product, 3) the concentrate content specifications are known, have been communicated to the customer, and the customer has the significant risks and rewards of ownership of it, 4) it is very unlikely a concentrate parcel from Greens Creek will be rejected by a customer upon physical receipt, and 5) we have the right to payment for the parcel. Judgment is also required in identifying our concentrate sales performance obligations. Most of our concentrate sales involve “frame contracts” with smelters that can cover multiple years and specify certain terms under which individual parcels of concentrates are sold. However, some terms are not specified in the frame contracts and/or can be renegotiated as part of annual amendments to the frame contract. We have determined parcel shipments represent individual performance obligations satisfied at the point in time when control of the shipment is transferred to the customer. The consideration we receive for our concentrate sales fluctuates due to changes in metals prices between the time of shipment and final settlement with the customer. However, we are able to reasonably estimate the transaction price for the concentrate sales at the time of shipment using forward prices for the month of settlement, and previously recorded sales and accounts receivable are adjusted to estimated settlement metals prices until final settlement with the customer. Also, it is unlikely a significant reversal of revenue for any one concentrate parcel will occur. As such, we use the expected value method to price the parcels until the final settlement date occurs, at which time the final transaction price is known. At December 31, 2024, metals contained in concentrate sales and exposed to future price changes tota led 1.5 million ounces of silver, 2,000 ounces of gold, 39,150 tons of zinc, and 52,350 tons of lead. However, as discussed in Note 10 , we seek to mitigate the risk of price adjustments by using financially-settled forward contracts for some of our sales. Sales and accounts receivable for concentrate shipments are recorded net of charges for treatment, refining, smelting losses, and other charges negotiated by us with the customers, which represent components of the transaction price. Charges are estimated by us upon shipment of concentrates based on contractual terms, and actual charges typically do not vary materially from our estimates. Costs charged by customers include fixed treatment and refining costs per ton of concentrate and may include price escalators which allow the customers to participate in the increase of lead and zinc prices above a negotiated baseline. Costs for shipping concentrates to customers are recorded to cost of sales as incurred. Sales of metal concentrates and metal products are made principally to custom smelters, third-party processors and metal traders. The percentage of metal sales contributed by each segment is reflected in the following table: Year Ended December 31, 2024 2023 2022 Greens Creek 46.4 % 53.7 % 46.6 % Lucky Friday 22.3 % 16.3 % 20.6 % Keno Hill 8.2 % 5.0 % — Casa Berardi 23.1 % 24.9 % 32.7 % Other — 0.1 % 0.1 % 100 % 100 % 100 % Total sales for the years ended December 31, 2024, 2023 and 2022 were as follows (in thousands): Year Ended December 31, 2024 2023 2022 Silver $ 413,980 $ 302,284 $ 265,054 Gold 318,256 274,613 298,910 Lead 87,223 72,726 83,384 Zinc 130,767 116,230 123,057 Copper 416 — — Less: Smelter and refining charges ( 41,273 ) ( 50,909 ) ( 51,973 ) Total metal sales 909,369 714,944 718,432 Environmental remediation services 20,556 5,283 473 Total sales $ 929,925 $ 720,227 $ 718,905 The following is metal sales information by geographic area based on the location of smelters and metal traders (for concentrate shipments) and the location of parent companies (for doré sales to metal traders) for the years ended December 31, 2024, 2023 and 2022 (in thousands): 2024 2023 2022 United States $ 41,079 $ 36,307 $ 21,938 Canada 457,423 375,092 406,600 Japan 44,561 52,744 51,375 Korea 181,372 127,590 107,828 China 183,644 103,534 136,514 Total, excluding gains/losses on forward contracts $ 908,079 $ 695,267 $ 724,255 Metal sales by significant product type for the years ended December 31, 2024, 2023 and 2022 were as follows (in thousands): Year Ended December 31, 2024 2023 2022 Doré and metals from doré - Greens Creek, Casa Berardi $ 238,124 $ 211,321 $ 255,608 Carbon - Casa Berardi 7,670 4,333 2,607 Silver concentrate - Greens Creek, Lucky Friday, Keno Hill 493,584 356,941 329,165 Zinc concentrate - Greens Creek, Lucky Friday, Keno Hill 111,101 80,274 109,177 Precious metals concentrate - Greens Creek 57,600 42,398 27,698 Total, excluding gains/losses on forward contracts $ 908,079 $ 695,267 $ 724,255 Metal sales for 2024, 2023 and 2022 included net gains of $ 1.3 million and $ 19.7 million and net losses of $ 5.8 million, respectively, on derivative contracts for silver, gold, lead and zinc contained in our sales. See Note 10 for more information. Metal sales from continuing operations to significant metals customers as a percentage of total sales were as follows for the years ended December 31, 2024, 2023 and 2022: Year Ended December 31, 2024 2023 2022 Customer A - Casa Berardi 17.2 % 24.2 % 35.4 % Customer B - Greens Creek, Lucky Friday 28.1 % 11.8 % 23.9 % Customer C - Greens Creek 18.5 % 15.5 % 11.3 % Customer D - Greens Creek, Keno Hill 15.9 % 9.5 % 6.9 % Our trade accounts receivable balance related to contracts with customers was $ 31.5 million, $ 19.4 mil lion and $ 45.1 million at December 31, 2024, 2023 and 2022, respectively, and included no allowance for credit losses. Trade accounts receivable balances with significant metals customers as of December 31, 2024, 2023 and 2022 were as follows: 2024 2023 2022 Customer B 46.1 % 22.2 % 57.5 % Customer C 16.8 % 3.3 % 3.1 % Customer D 28.2 % — 2.1 % Customer E 7.2 % 24.2 % 3.2 % Customer F — — 15.9 % Customer G — — 11.8 % Customer H — 34.8 % — We have determined our contracts do not include a significant financing component. For doré sales and sales of metal from doré, payment is received at the time the performance obligation is satisfied. Payment for carbon sales is received within a relatively short period of time after the performance obligation is satisfied. The amount of consideration for concentrate sales is variable, and we receive payment for a significant portion of the estimated value of concentrate parcels within a relatively short period of time after the performance obligation is satisfied. Our environmental services remediation revenue is all generated by our ERDC subsidiary and all from one customer CIRNAC. Annually, ERDC and CIRNAC agree to detailed work plans ("DWP") covering the planned activities from April 1 to March 31, the Canadian government's fiscal year. All DWPs are a separate performance obligation, which are satisfied over time as the services are performed and CIRNAC approves the work performed. Payment terms are 30 days after receipt of an invoice by CIRNAC. CIRNAC has the ability to cancel the contract with or without cause by providing written notice to the Company. ERDC is owed for work performed as of the date of cancellation. As at December 31, 2024, 2023 and 2022, CIRNAC owed us $ 8.8 million, $ 3.6 million and $ 0.4 million, which is included as part of "Other Accounts Receivable" on our consolidated balance sheet. We do not incur significant costs to obtain contracts, nor costs to fulfill contracts which are not addressed by other accounting standards. Therefore, we have not recognized an asset for such costs as of December 31, 2024 and 2023.

Note 5 - Environmental and Recl

Note 5 - Environmental and Reclamation Activities	12 Months Ended
	Dec. 31, 2024
Environmental and Reclamation Activities [Abstract]
Environmental and Reclamation Activities	Note 5: Environmental and Reclamation Activities The liabilities accrued for our reclamation and closure costs at December 31, 2024 and 2023 were as follows (in thousands): 2024 2023 Operating properties: Greens Creek $ 38,737 $ 39,893 Lucky Friday 10,982 12,022 Keno Hill 3,500 3,360 Casa Berardi 17,005 11,157 Non-operating properties: Nevada 33,700 30,539 San Sebastian 1,509 2,061 Troy mine 3,385 5,238 Johnny M 10,148 10,148 All other sites 5,944 6,039 Total 124,910 120,457 Reclamation and closure costs, current ( 13,748 ) ( 9,660 ) Reclamation and closure costs, non-current $ 111,162 $ 110,797 The activity in our accrued reclamation and closure cost liability for the years ended December 31, 2024, 2023 and 2022 was as follows (in thousands): Balance at January 1, 2022 $ 113,231 Accruals for estimated costs 2,874 Accretion expense 5,995 Revision of estimated cash flows due to changes in reclamation plans 452 Payment of reclamation obligations ( 5,553 ) Balance at December 31, 2022 116,999 Accruals for estimated costs 2,952 Accretion expense 7,740 Revision of estimated cash flows due to changes in reclamation plans ( 29 ) Payment of reclamation obligations ( 7,205 ) Balance at December 31, 2023 120,457 Accruals for estimated costs ( 239 ) Accretion expense 5,806 Revision of estimated cash flows due to changes in reclamation plans 7,383 Payment of reclamation obligations ( 8,497 ) Balance at December 31, 2024 $ 124,910 Asset Retirement Obligations Below is a reconciliation as of December 31, 2024 and 2023 (in thousands) of the asset retirement obligations (“ARO”) which are included in our total accrued reclamation and closure costs of $ 124.9 million and $ 120.5 million, respectively, discussed above. The estimated reclamation and closure costs were discounted using credit adjusted, risk-free interest rates ranging from 5.75 % to 14.5 % from the time we incurred the obligation to the time we expect to pay the retirement obligation. 2024 2023 Balance January 1 $ 99,067 $ 96,620 Changes in obligations due to changes in reclamation plans 5,226 ( 29 ) Accretion expense 5,806 7,740 Payment of asset retirement obligations ( 4,667 ) ( 5,264 ) Balance at December 31 $ 105,432 $ 99,067 Payments for reclamation obligations were incurred at Lucky Friday and at our former operating mines San Sebastian and Troy. The AROs related to the changes described above were discounted using a credit adjusted, risk-free interest rate of between 2.75 % and 7.5 % and inflation rates ranging from 1.8 % to 4 %.

Note 6 - Employee Benefit Plans

Note 6 - Employee Benefit Plans	12 Months Ended
	Dec. 31, 2024
Defined Benefit Plan [Abstract]
Employee Benefit Plans	Note 6: Employee Benefit Plans Pensions and Other Post-retirement Plans We sponsor defined benefit pension plans covering substantially all U.S. employees and a Supplemental Excess Retirement Plan (“SERP”) covering certain eligible employees. During July 2024, we closed the Hecla Mining Company Retirement Plan for Employees (the “Hecla Plan”) to new participants. The closure of the Hecla Plan does not affect employees hired prior to July 19, 2024, and they will continue to accrue benefits. Benefits to retirees will continue unchanged. The following tables provide a reconciliation of the changes in the plans’ benefit obligations and fair value of assets over the two-year period ended December 31, 2024, and the funded status as of December 31, 2024 and 2023 (in thousands): Pension Benefits 2024 2023 Change in benefit obligation: Benefit obligation at beginning of year $ 149,426 $ 148,143 Service cost 3,659 3,794 Interest cost 8,302 7,974 Change due to mortality change 2,430 643 Change due to discount rate change 10,819 ( 3,635 ) Actuarial return 1,714 401 Benefits paid ( 8,346 ) ( 7,894 ) Benefit obligation at end of year 168,004 149,426 Change in fair value of plan assets: Fair value of plan assets at beginning of year 176,958 175,159 Actual return on plan assets 15,722 7,937 Employer contributions — 1,756 Benefits paid ( 8,346 ) ( 7,894 ) Fair value of plan assets at end of year 184,334 176,958 Funded status at end of year $ 16,330 $ 27,532 The following table provides the amounts recognized in the consolidated balance sheets as of December 31, 2024 and 2023 (in thousands): Pension Benefits 2024 2023 Non-current assets: Accrued benefit asset $ 19,879 $ 28,399 Pension liability Accrued current benefit liability ( 1,556 ) ( 867 ) Accrued benefit liability ( 1,993 ) — Accumulated other comprehensive loss 19,489 8,031 Net amount recognized $ 35,819 $ 35,563 The benefit obligation and prepaid benefit costs were calculated by applying the following weighted average assumptions: Pension Benefits 2024 2023 Discount rate: net periodic pension cost 5.14 % 5.77 % Discount rate: projected benefit obligation 5.14 % 5.77 % Expected rate of return on plan assets 7.25 % 7.25 % Rate of compensation increase: net periodic pension cost 3 % 5 %/ 2 % (1) Rate of compensation increase: projected benefit obligation 3 % 4 %/ 3 %/ 2 % (2) (1) 5% for 2024 and 2% per year thereafter . (2) 4% for 2024, 3% for 2025 and 2% per year thereafter . The above assumptions were calculated based on information as of December 31, 2024 and 2023, the measurement dates for the plans. The discount rate is based on the yield curve for investment-grade corporate bonds as published by the U.S. Treasury Department. The expected rate of return on plan assets is based upon consideration of the plan’s current asset mix, historical long-term return rates and the plan’s historical performance. Our current assumption for the rate on plan assets is 7.25 %. The vested benefit obligation is determined based on the actuarial present value of benefits to which employees are currently entitled, based on employees' expected date of separation or retirement. Net periodic pension cost for the plans consisted of the following in 2024, 2023, and 2022 (in thousands): Pension Benefits 2024 2023 2022 Service cost $ 3,659 $ 3,794 $ 6,262 Interest cost 8,302 7,974 5,476 Expected return on plan assets ( 12,544 ) ( 12,428 ) ( 13,452 ) Amortization of prior service cost 265 500 511 Amortization of net loss (gain) 61 ( 188 ) 2,049 Net periodic pension (benefit) cost $ ( 257 ) $ ( 348 ) $ 846 The service cost component of net periodic pension cost is included in the same line items of our consolidated financial statements as other employee compensation costs. The net benefit of $ 3.9 million, $ 4.1 million and $ 5.4 million for 2024, 2023 and 2022, respectively, related to all other components of net periodic pension cost is included in other income on our consolidated statements of operations and comprehensive income (loss). Each defined benefit pension plan's statement of investment policy delineates the responsibilities of the board, the committee which administers the plan, the investment manager(s), and investment adviser/consultant, and provides guidelines on investment management. Investment objectives are established for each of the asset categories included in the pension plans with comparisons of performance against appropriate benchmarks. Each plan's policy calls for investments to be supervised by qualified investment managers. The investment managers are monitored on an ongoing basis by our outside consultant, with formal reporting to us and the consultant performed each quarter. The policy sets forth the following allocation of assets: Target Maximum Large cap U.S. equities 17 % 20 % Small cap U.S. equities 8 % 10 % Non-U.S. equities 25 % 30 % U.S. Fixed income 18 % 23 % Emerging markets debt 5 % 8 % Real estate 15 % 18 % Absolute return 5 % 7 % Company stock/Real return 7 % 13 % Each defined benefit pension plan's statement of investment policy and objectives aspires to achieve the assumed long term rate of return on plan assets established by the plan’s actuary plus one percent. Accounting guidance has established a hierarchy of assets measured at fair value on a recurring basis. The three levels included in the hierarchy are: Level 1: quoted prices in active markets for identical assets or liabilities Level 2: significant other observable inputs Level 3: significant unobservable inputs The fair values by asset category in each pension plan, along with their hierarchy levels, are as follows as of December 31, 2024 (in thousands): Hecla plans Lucky Friday Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Investments measured at fair value Interest-bearing cash $ 2,699 $ — $ — $ 2,699 $ 123 $ — $ — $ 123 Common stock 18,874 — — 18,874 2,932 — — 2,932 Mutual funds 87,823 — — 87,823 13,016 — — 13,016 Total investments in the fair value hierarchy 109,396 — — 109,396 16,071 — — 16,071 Investments measured at net asset value Real estate funds — — — 16,318 — — — 3,698 Common collective funds — — — 31,688 — — — 7,163 Total investments measured at net asset value — — — 48,006 — — — 10,861 Total fair value $ 109,396 $ — $ — $ 157,402 $ 16,071 $ — $ — $ 26,932 The fair values by asset category in each defined benefit pension plan, along with their hierarchy levels, were as follows as of December 31, 2023 (in thousands): Hecla plans Lucky Friday Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Investments measured at fair value Interest-bearing cash $ 525 $ — $ — $ 525 $ 117 $ — $ — $ 117 Common stock 19,933 — — 19,933 2,872 — — 2,872 Mutual funds 83,504 — — 83,504 12,792 — — 12,792 Total investments in the fair value hierarchy 103,962 — — 103,962 15,781 — — 15,781 Investments measured at net asset value Real estate funds — — — 18,029 — — — 4,173 Common collective funds — — — 28,386 — — — 6,627 Total investments measured at net asset value — — — 46,415 — — — 10,800 Total fair value $ 103,962 $ — $ — $ 150,377 $ 15,781 $ — $ — $ 26,581 Common stock investments included investments in Hecla common stock as of December 31, 2024 of $ 18.9 million (2023: $ 19.9 million for the Hecla Plan and SERP and $ 2.9 million (2023: $ 2.9 million) for the Lucky Friday retirement plan. Generally, investments are valued based on information provided by fund managers to each plan's trustee as reviewed by management and its investment advisers. Mutual funds and equities are valued based on available exchange data. Commingled equity funds consist of publicly-traded investments. Fair value for real estate funds, hedge funds and common collective equity funds is measured using the net asset value per share (or its equivalent) practical expedient (“NAV”), and has not been categorized in the fair value hierarchy. There are no unfunded commitments related to these investments. There are no restrictions on redemptions of these funds as of December 31, 2024, except as limited by the redemption terms discussed below. The following summarizes information on the asset classes measured using NAV: Investment strategy Redemption terms Real estate funds Invest in real estate properties among the four major property types (office, industrial, retail and multi-family) Allowed quarterly with notice of between 45 and 60 days Hedge funds Invest in a variety of asset classes which aim to diversify sources of returns Allowed quarterly with notice of 90 days Common collective funds Invest in U.S. large cap or small/medium cap public equities in actively traded managed equity portfolios Allowed daily or with notice of 30 days The following are estimates of future benefit payments, which reflect expected future service as appropriate, related to our pension plans (in thousands): Year Ending December 31, Pension 2025 $ 10,061 2026 10,171 2027 10,158 2028 10,427 2029 10,610 Years 2030-2033 53,433 The last time we made a contribution to the plans was during 2023 in the form of $ 1.0 million in shares of our common stock, of which $ 0.8 million and $ 0.2 million was contributed to the SERP and Hecla Plan, respectively. We do not expect to be required to contribute to our defined benefit plans in 2025, but we may choose to do so. The following table indicates whether our pension plans had accumulated benefit obligations (“ABO”) in excess of plan assets, or plan assets exceeded ABO. During 2024 two of our plans had plan assets in excess of the ABO and one did not. During 2023 all three of our plans assets exceeded the ABO (in thousands). 2024 2024 2023 Plan Assets Exceed ABO ABO Exceed Plan Assets Plan Assets Exceed ABO Projected benefit obligation $ 48,251 $ 119,753 $ 149,426 Accumulated benefit obligation $ 47,262 $ 116,148 $ 146,336 Fair value of plan assets $ 66,573 $ 117,761 $ 176,958 For the pension plans, the following amounts are included in “Accumulated other comprehensive income, net” on our balance sheet as of December 31, 2024, that have not yet been recognized as components of net periodic benefit cost (in thousands): Pension Unamortized net loss $ 19,185 Unamortized prior service cost 304 Except for a limited number of employees who participate in the SERP, non-U.S. employees are not eligible to participate in the defined benefit pension plans that we maintain for U.S. employees. Canadian employees participate in Canada's public retirement income system, which includes the following components: (i) the Canada (or Quebec) Pension Plan, which is an employee and employer contributory, earnings-related social insurance program, and (ii) the Old Age Security program. Mexican employees participate in Mexico's public retirement income system, which is based on contributions the employee, employer and the government submit to the retirement savings system. The system is administered through savings accounts managed by private fund managers selected by the participant. Capital Accumulation Plans Our Capital Accumulation Plan ("401(k) plan") is available to all U.S. salaried and certain hourly employees upon employment. We make a matching contribution in the form of cash or stock of 100 % of an employee’s contribution up to 6 % of eligible earnings. Our matching contributions, all in Hecla common stock, were $ 4.8 million, $ 4.6 million and $ 4.5 million in 2024, 2023 and 2022, respectively. We also maintain a 401(k) plan that is available to all hourly employees at Lucky Friday after completion of six months of service. When an employee meets eligibility requirements we make a matching cash contribution of 55 % of the employee’s contribution up to, but not exceeding, 6 % of the employee’s eligible earnings. Our matching contributions were $ 1.6 million, $ 1.3 million and $ 0.6 million in 2024, 2023 and 2022, respectively.

Note 7 - Income and Mining Taxe

Note 7 - Income and Mining Taxes	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Income and Mining Taxes	Note 7: Income and Mining Taxes Major components of our income and mining tax (provision) benefit for the years ended December 31, 2024, 2023 and 2022 are as follows (in thousands): 2024 2023 2022 Current: Domestic $ ( 6,758 ) $ ( 3,846 ) $ ( 3,915 ) Foreign ( 3,968 ) ( 3,322 ) ( 5,119 ) Total current income and mining tax (provision) benefit ( 10,726 ) ( 7,168 ) ( 9,034 ) Deferred: Domestic ( 30,435 ) ( 17,058 ) 2,064 Foreign 10,747 23,004 14,536 Total deferred income and mining tax (provision) benefit ( 19,688 ) 5,946 16,600 Total income and mining tax (provision) benefit $ ( 30,414 ) $ ( 1,222 ) $ 7,566 Domestic and foreign components of income (loss) before income and mining taxes for the years ended December 31, 2024, 2023 and 2022 are as follows (in thousands): 2024 2023 2022 Domestic $ 121,273 $ 43,745 $ ( 6,343 ) Foreign ( 55,057 ) ( 126,740 ) ( 38,571 ) Total $ 66,216 $ ( 82,995 ) $ ( 44,914 ) The annual tax (provision) benefit is different from the amount that would be provided by applying the statutory federal income tax rate to our pretax income (loss). The reasons for the difference are (in thousands): 2024 2023 2022 Computed “statutory” benefit (provision) $ ( 13,905 ) 22 % $ 17,429 21 % $ 9,432 21 % Percentage depletion 9,895 ( 15 ) 4,205 5 8,542 19 Change in valuation allowance ( 14,195 ) 21 ( 20,016 ) ( 24 ) ( 8,113 ) ( 18 ) State taxes, net of federal tax benefit ( 4,823 ) 7 ( 2,731 ) ( 3 ) ( 158 ) — Foreign currency remeasurement 590 ( 1 ) ( 4,155 ) ( 5 ) 4,559 10 Rate differential on foreign earnings 3,293 ( 5 ) 6,553 8 1,515 3 Compensation ( 2,684 ) 4 ( 1,636 ) ( 2 ) 173 — Mining and other taxes ( 7,661 ) 12 ( 1,359 ) ( 2 ) ( 6,609 ) ( 15 ) Other ( 924 ) 1 488 1 ( 1,775 ) ( 3 ) Total (provision) benefit $ ( 30,414 ) 46 % $ ( 1,222 ) ( 1 )% $ 7,566 17 % At December 31, 2024 and 2023, the net deferred tax liability was $ 110.3 million and $ 102.0 million, respectively. The individual components of our net deferred tax assets and liabilities are reflected in the table below (in thousands). December 31, 2024 2023 Deferred tax assets: Accrued reclamation costs $ 34,538 $ 33,451 Deferred exploration 21,591 22,341 Foreign net operating losses 50,763 52,091 Domestic net operating losses 191,583 214,137 Foreign exchange loss 29,292 22,247 Foreign tax credit carryforward 1,576 2,026 Miscellaneous 38,443 35,060 Total deferred tax assets 367,786 381,353 Valuation allowance ( 115,105 ) ( 100,910 ) Total deferred tax assets 252,681 280,443 Deferred tax liabilities: Miscellaneous ( 8,648 ) ( 12,950 ) Properties, plants and equipment ( 354,299 ) ( 369,445 ) Total deferred tax liabilities ( 362,947 ) ( 382,395 ) Net deferred tax liability $ ( 110,266 ) $ ( 101,952 ) We evaluated the positive and negative evidence available to determine the amount of valuation allowance required on our deferred tax assets. At December 31, 2024, the balance of our valuation allowances was $ 115.1 million compared to $ 100.9 million at December 31, 2023. We retained a balance of valuation allowance on Hecla US operations at December 31, 2024 of $ 3.4 million for state loss carryforwards and foreign tax credits. In the Nevada U.S. Group, the scheduling of reversing deferred tax assets and liabilities determined that existing tax loss carryforwards subject to the limitation of eighty percent reduction of taxable income may be limited in the future. A valuation allowance is recorded for $ 39.2 million. Due to cessation of operations in Mexico at the end of 2020, we are uncertain when a source of taxable income will be available in that jurisdiction. Therefore, a valuation allowance of $ 11.6 million was retained on deferred tax assets in Mexico. As of December 31, 2024, a $ 60.9 million valuation allowance is recorded for Canadian jurisdictions, primarily related to the Alexco acquisition in 2022. The changes in the valuation allowance for the years ended December 31, 2024, 2023 and 2022, are as follows (in thousands): 2024 2023 2022 Balance at beginning of year $ ( 100,910 ) $ ( 72,856 ) $ ( 39,152 ) Valuation allowance on deferred tax assets acquired with the ATAC (2023) and Alexco (2022) acquisitions — ( 8,077 ) ( 25,591 ) Increase related to non-recognition of deferred tax assets due to uncertainty of recovery and increase related to non-utilization of net operating loss carryforwards ( 16,965 ) ( 21,114 ) ( 13,256 ) Decrease related to either or a combination of (i) utilization, (ii) release due to future benefit, and (iii) expiration of deferred tax assets as applicable 2,770 1,137 5,143 Balance at end of year $ ( 115,105 ) $ ( 100,910 ) $ ( 72,856 ) As of December 31, 2024, for U.S. income tax purposes, we have federal and state net operating loss carryforwards of $ 818.1 million and $ 318.2 million, respectively. U.S. net operating loss carryforwards for periods arising before January 1, 2018 have a 20-year expiration period, the earliest of which could expire in 2031. U.S. net operating loss carryforwards of $ 468.3 million arising in 2018 and future periods have an indefinite carryforward period. We have foreign and provincial net operating loss carryforwards of $ 183.0 million, which expire between 2026 and 2044. Our utilization of U.S. net operating loss carryforwards may be subject to annual limitations if there is a change in control as defined under Internal Revenue Code Section 382. As of December 31, 2024, no change in control has occurred in the Hecla U.S. group. Net operating losses acquired with the Nevada U.S. Group are subject to limitation under Internal Revenue Code Section 382. However, the annual limitation is not expected to have a material impact on our ability to utilize the losses. We have Internal Revenue Code Section 163(j) interest expense limitation carryforwards in the Nevada U.S. Group of $ 27.5 million as of December 31, 2024. The carryforward results in a future tax benefit of $ 5.8 million and has an indefinite carryforward period. There are no 163(j) interest limitations in the Hecla US group as of December 31, 2024. We have excessive interest and financing expense limitation ("EIFEL") carryforwards of $ 4.7 million in Hecla Quebec as of December 31, 2024. The carryforward results in a future tax benefit of $ 0.9 million and has an indefinite carryforward period. In the Alexco Group, EIFEL carryforwards of $ 16.4 million as of December 31, 2024. The carryforward results in a future tax benefit of $ 4.4 million and has an indefinite carryforward period. As of December 31, 2024, we have foreign tax credit carryforwards of $ 1.6 million. The carryforward period for foreign tax credits is 10 years. Our foreign tax credits will expire between 2025 and 2026. We file income tax returns in the U.S. federal jurisdiction, and various state and foreign jurisdictions. We are no longer subject to income tax examinations by U.S. federal and state tax authorities for years prior to 2008, nor subject to examinations by foreign tax authorities for years prior to 2018. We are currently under examination in certain local Canadian tax jurisdictions. However, we do not anticipate any material adjustments. We had no unrecognized tax benefits as of December 31, 2024 or 2023. Due to the net operating loss carryover provision, coupled with the lack of any unrecognized tax benefits, we have not provided for any interest or penalties associated with any unrecognized tax benefits. If interest and penalties were to be assessed, our policy is to charge interest to interest expense, and penalties to other operating expense. It is not anticipated that there will be any significant changes to unrecognized tax benefits within the next 12 months.

Note 8 - Income (Loss) per Comm

Note 8 - Income (Loss) per Common Share	12 Months Ended
	Dec. 31, 2024
Notes To Financial Statements [Abstract]
Income (Loss) per Common Share	Note 8: Income (Loss) per Common Share We calculate basic income (loss) per share using, as the denominator, the weighted average number of common shares outstanding during the period. Diluted income (loss) per share uses, as its denominator, the weighted average number of common shares outstanding during the period plus the effect of potential dilutive common shares during the period using the treasury stock method for options, warrants, and restricted stock units, and if-converted method for convertible preferred shares. Potential dilutive common shares include outstanding unvested restricted stock unit awards, deferred restricted stock units, performance based units, warrants and convertible preferred stock (collectively referred to as dilutive units) for periods in which we have reported net income. The 2024 dilutive units exclude the impact of 2,068,000 warrants exerciseable at $ 8.02 per warrant, due to their anti-dilutive impact. For periods in which we reported net losses, potential dilutive units are excluded, as their conversion and exercise would not reduce earnings per share. Under the if-converted method, preferred shares would not dilute earnings per share in any of the periods presented. The following table represents net income (loss) per common share – basic and diluted (in thousands, except income (loss) per share): Year ended December 31, 2024 2023 2022 Numerator Net income (loss) $ 35,802 $ ( 84,217 ) $ ( 37,348 ) Preferred stock dividends ( 552 ) ( 552 ) ( 552 ) Net income (loss) applicable to common stockholders $ 35,250 $ ( 84,769 ) $ ( 37,900 ) Denominator Basic weighted average common shares 620,848 605,668 557,344 Dilutive units 1,687 — — Diluted weighted average common shares 622,535 605,668 557,344 Basic income (loss) per common share $ 0.06 $ ( 0.14 ) $ ( 0.07 ) Diluted income (loss) per common share $ 0.06 $ ( 0.14 ) $ ( 0.07 ) For the years ended December 31, 2023 and 2022, all outstanding dilutive units were excluded from the computation of diluted loss per share, as our reported net losses for those periods would cause their conversion and exercise to have no effect on the calculation of loss per share.

Note 9 - Debt, Credit Facility

Note 9 - Debt, Credit Facility and Leases	12 Months Ended
	Dec. 31, 2024
Line of Credit Facility [Abstract]
Debt, Credit Facility and Leases	Note 9: Debt, Credit Facility and Leases Debt Summary Our debt as of December 31, 2024 and 2023 consisted of our 7.25 % Senior Notes due February 15, 2028 (“Senior Notes”), our Investissement Quebec Series 2020-A Senior Notes due July 9, 2025 (the “IQ Notes”) and any drawn amounts on our $ 225 million Credit Agreement. These debt arrangements are discussed further below. The following tables summarize our current and long-term debt balances, including principal amounts outstanding under the Credit Agreement, as of December 31, 2024 and 2023 (in thousands): December 31, 2024 Senior Notes IQ Notes Credit Agreement Total Principal $ 475,000 $ 33,525 $ 23,000 $ 531,525 Unamortized discount/premium and issuance costs ( 2,816 ) 92 — ( 2,724 ) Total debt 472,184 33,617 23,000 528,801 Less: current debt — ( 33,617 ) — ( 33,617 ) Long-term debt $ 472,184 $ — $ 23,000 $ 495,184 December 31, 2023 Senior Notes IQ Notes Credit Agreement Total Principal $ 475,000 $ 36,473 $ 128,000 $ 639,473 Unamortized discount/premium and issuance costs ( 3,730 ) 257 — ( 3,473 ) Long-term debt $ 471,270 $ 36,730 $ 128,000 $ 636,000 The following table summarizes the scheduled annual future payments, including interest, for the Senior Notes and IQ Notes as of December 31, 2024 (in thousands). The amounts for the IQ Notes are stated in USD based on the USD/CAD exchange rate as of December 31, 2024. Senior Notes IQ Notes 2025 $ 34,438 $ 35,709 2026 34,438 — 2027 34,437 — 2028 479,305 — Total $ 582,618 $ 35,709 Senior Notes On February 19, 2020, we completed an offering of $ 475 million in aggregate principal amount of our Senior Notes under our shelf registration statement previously filed with the Securities and Exchange Commission. The Senior Notes are governed by the Indenture, dated as of February 19, 2020, as amended, among Hecla and certain of our subsidiaries and The Bank of New York Mellon Trust Company, N.A., as trustee. On March 19, 2020, the net proceeds from the offering of the Senior Notes ($ 469.5 million) were used, together with cash on hand, to redeem all of our previously-outstanding 6.875 % Senior Notes that were due in 2021 (the "2021 Notes.") The Senior Notes are recorded net of a 1.16 % initial purchaser discount totaling $ 5.5 million. The Senior Notes bear interest at a rate of 7.25 % per year from the date of issuance or from the most recent payment date on which interest has been paid or provided for. Interest on the Senior Notes is payable on February 15 and August 15 of each year, commencing August 15, 2020. During 2024, 2023 and 2022, interest expense on the statement of operations and comprehensive (loss) income related to the Senior Notes and 2021 Notes and amortization of the initial purchaser discount and fees related to the issuance of the Senior Notes and 2021 Notes totaled $ 35.4 mil lion, $ 34.4 million a nd $ 35.4 million, respectively. The Senior Notes are guaranteed on a senior unsecured basis by certain of our subsidiaries (the “Guarantors”). The Senior Notes and the guarantees are, respectively, Hecla's and the Guarantors' general senior unsecured obligations and are subordinated to all of Hecla's and the Guarantors' existing and future secured debt to the extent of the assets securing that secured debt. In addition, the Senior Notes are effectively subordinated to all of the liabilities of Hecla's subsidiaries that are not guaranteeing the Senior Notes, to the extent of the assets of those subsidiaries. Since February 15, 2023, the Senior Notes are redeemable in whole or in part, on the redemption dates specified in the Indenture, at the following redemption prices (expressed as a percentage of the principal amount) plus accrued interest, if any, to the redemption date: (i) 105.438 % for the twelve-month period beginning after February 15, 2023, (ii) 103.625 % for the twelve-month period beginning after February 15, 2024, (iii) 101.813 % for the twelve-month period beginning after February 15, 2025, and (iv) 100.0 % after February 15, 2026. Since February 15, 2023, we may redeem up to 35 % of the Senior Notes with the net cash proceeds of certain equity offerings. Upon the occurrence of a change of control (as defined in the Indenture), each holder of Senior Notes will have the right to require us to purchase all or a portion of such holder's Senior Notes pursuant to a change of control offer (as defined in the Indenture), at a purchase price equal to 101 % of the principal amount thereof plus accrued and unpaid interest, if any, to the date of purchase, subject to the rights of holders of the Senior Notes on the relevant record date to receive interest due on the relevant interest payment date. IQ Notes On July 9, 2020, we entered into a note purchase agreement pursuant to which we issued CAD$ 50 million (USD$ 36.8 million at the time of the transaction) in aggregate principal amount of our IQ Notes to Investissement Québec, a financing arm of the Québec government. Because the IQ notes are denominated in CAD, the reported USD-equivalent principal balance will change with movements in the exchange rate. The IQ Notes were issued at a premium of 103.65 %, or CAD$ 1.8 million, implying an effective annual yield of 5.74 % and an aggregate principal amount to be repaid of CAD$ 48.2 million. The IQ Notes were issued in four equal installments of CAD$ 12.5 million on July 9, August 9, September 9 and October 9, 2020, with the first installment issued net of CAD$ 0.6 million in fees. The IQ Notes bear interest on amounts outstanding at a rate of 6.515 % per year, payable on January 9 and July 9 of each year, commencing January 9, 2021. The IQ Notes are senior and unsecured and are pari passu in all material respects with the Senior Notes, including with respect to guarantees of the IQ Notes by certain of our subsidiaries. The net proceeds from the IQ Notes are available for general corporate purposes, including open market purchases of a portion of the Senior Notes and to pay for capital expenditures at Casa Berardi. Under the note purchase agreement for the IQ Notes and subject to a force majeure event, we met the requirement to invest in the aggregate CAD$ 100 million at Casa Berardi and other exploration and development projects in Quebec over the four-year period commencing on July 9, 2020. During 2024, 2023 and 2022, interest expense related to the IQ Notes, including premium and origination fees, totaled $ 2.2 million , $ 2.3 million and $ 2.3 million, respectively. The IQ Notes are due and payable on July 9, 2025. Credit Agreement On July 21, 2022, we entered into a revolving credit agreement (the "Original Credit Agreement") with various financial institutions (the “Lenders”), Bank of Montreal and Bank of America, N.A. as letters of credit issuers, and Bank of America, N.A., as administrative agent for the Lenders and as swingline lender. The Original Credit Agreement was amended on May 3, 2024, when we entered into a First Amendment to Credit Agreement (the “First Amendment”), which made certain changes to the Original Credit Agreement (the Original Credit Agreement, as amended, modified and supplemented by the First Amendment, is referred to hereafter as the “Credit Agreement”). The First Amendment modified the Original Credit Agreement as follows: • Increased the amount available for borrowing to $ 225 million from $ 150 million; • Extended the maturity date to July 21, 2028 from July 21, 2026 (the maturity date of the Credit Agreement will be accelerated to August 15, 2027 if our Senior Notes are not refinanced by that date); • National Bank, TD Securities, Bank of Nova Scotia and ING were added as new Lenders and Credit Suisse AG, New York Branch assigned its interests in the Original Credit Agreement to its affiliate UBS AG, Stamford Branch immediately prior to entering into the First Amendment. Proceeds of the revolving loans under the Credit Agreement may be used for general corporate purposes. The interest rate on the outstanding loans under the Credit Agreement is based on the Company’s net leverage ratio and is calculated at (i) Term Secured Overnight Financing Rate ("SOFR") plus 2 % to 3.5 % or (ii) Bank of America’s Base Rate plus 1 % to 2.5 % with Base Rate being the 14 highest of (i) the Bank of America prime rate, (ii) the Federal Funds rate plus .50 % or (iii) Term SOFR plus 1.00 %. For each amount drawn, we elect whether we draw on a one, three or six month basis or annual basis for SOFR. If we elect to draw for greater than six months, we pay interest quarterly on the outstanding amount. We are also required to pay a commitment fee of between 0.45 % to 0.78750 %, depending on our net leverage ratio. Letters of credit issued under the Credit Agreement bear a fee between 2.00 % and 3.50 % based on our net leverage ratio, as well as a fronting fee to each issuing bank at an agreed upon rate per annum on the average daily dollar amount of our letter of credit exposure. Hecla Mining Company and certain of our subsidiaries are the borrowers under the Credit Agreement, while certain of our other subsidiaries are guarantors of the borrowers’ obligations under the Credit Agreement. As further security, the Credit Agreement is collateralized by a mortgage on the Greens Creek mine, the equity interests of subsidiaries that own the Greens Creek mine or are part of the Greens Creek Joint Venture and our subsidiary Hecla Admiralty Company (the “Greens Creek Group”), and by all of the Greens Creek Group’s rights and interests in the Greens Creek Joint Venture Agreement, and in all assets of the joint venture and of any member of the Greens Creek Group. As of December 31, 2024, $ 6.2 million (2023: $ 6.9 million) was used for letters of credit, and $ 23.0 m illion (2023: $ 128.0 million) was drawn on the facility leaving $ 195.8 million available for borrowing. We believe we were in compliance with all covenants under the Credit Agreement as of December 31, 2024. Finance Leases We have entered into various lease agreements, primarily for equipment at our operations, which we have determined to be finance leases. At December 31, 2024, the total liability associated with the finance leases, including certain purchase option amounts, was $ 21.9 million (2023: $ 26.8 million), with $ 8.2 million (2023: $ 9.8 million) of the liability classified as current and $ 13.7 million (2023: $ 17.0 million) classified as non-current . The assets related to these leases are recorded in properties, plants, equipment and mine development, net, on our consolidated balance sheets and totaled $ 14.0 million as of December 31, 2024 (2023: $ 20.3 million), net of accumulated depreciation. Expense during 2024, 2023 and 2022 related to finance leases included $ 7.9 million, $ 12.6 million and $ 7.1 million, respectively, for amortization of the related assets, a nd $ 0.9 mil lion, $ 0.9 million and $ 0.9 million, respectively, for interest expense. The total obligation for future minimum finance lease payments was $ 24.1 million as of December 31, 2024, with $ 2.2 million attributed to interest. Our finance leases as of December 31, 2024 had a weighted average remaining term of 1.7 years (2023: 2.2 years) and a weighted average discount rate of 9.7 % (2023: 9.9 %). At December 31, 2024, the annual maturities of finance lease commitments, including interest, were (in thousands): Twelve-month period ending December 31, 2025 $ 9,576 2026 7,849 2027 3,962 2028 1,099 2029 1,099 More than 5 years 550 Total 24,135 Less: effect of interest ( 2,223 ) Net finance lease obligation $ 21,912 Operating Leases We have entered into various lease agreements, primarily for equipment, buildings and other facilities, and land at our operations and corporate offices, which we have determined to be operating leases. Some of the operating leases allow for extension of the lease beyond the current term at our option. We have considered the likelihood and estimated duration of the extension options in determining the lease term for measurement of the liability and right-of-use asset. For our operating leases as of December 31, 2024, we have assumed a weighted average discount rate of 5.7 % (2023: 6.5 %). As of December 31, 2024, the total liability balance associated with the operating leases was $ 8.0 million (2023: $ 8.6 million), with $ 0.9 million (2023: $ 0.8 million) of the liability classified as current as part of Other Current Liabilities and the remaining $ 7.1 million (2023: $ 7.8 million) classified as non-current as part of Other Non-Current Liabilities on our balance sheet. The right-of-use assets for our operating leases are recorded as a non-current asset on our consolidated balance sheets and totaled $ 7.5 million and $ 8.3 million as of December 31, 2024 and 2023, respectively. During 2024, 2023 and 2022, operating lease expense, and cash paid for operating leases included in net cash provided by operating activities, totaled $ 3.8 million, $ 3.1 million and $ 3.1 million, respectively. The weighted-average remaining lease term for our operating leases as of December 31, 2024 was 7.3 years (2023: 9.8 years). At December 31, 2024, the annual maturities of undiscounted operating lease payments, including assumed extensions beyond the current lease terms, were (in thousands): Twelve-month period ending December 31, 2025 $ 1,299 2026 1,299 2027 1,192 2028 1,054 2029 990 More than 5 years 4,916 Total 10,750 Less: effect of discounting ( 2,755 ) Operating lease liability $ 7,995

Note 10 - Derivative Instrument

Note 10 - Derivative Instruments	12 Months Ended
	Dec. 31, 2024
Disclosure Text Block [Abstract]
Derivative Instruments	Note 10: Derivative Instruments General Our current risk management policy provides that up to 75 % of five years of our foreign currency, lead and zinc metals price and silver and gold price exposure may be covered under a derivatives program with certain other limitations. Our program also utilizes derivatives to manage price risk exposure created from when revenue is recognized from a shipment of concentrate until final settlement. These instruments expose us to (i) credit risk in the form of non-performance by counterparties for contracts in which the contract price exceeds the spot price of the hedged commodity or foreign currency and (ii) price risk to the extent that the spot price or currency exchange rate exceeds the contract price for quantities of our production and/or forecasted costs covered under contract positions. Foreign Currency Our wholly-owned subsidiaries owning the Casa Berardi operation and Keno Hill operation are USD-functional entities which routinely incur expenses denominated in CAD. Such expenses expose us to exchange rate fluctuations between the USD and CAD. We have a program to manage our exposure to fluctuations in the USD exchange rate for these subsidiaries' future operating and capital costs denominated in CAD. The program related to forecasted cash operating costs at Casa Berardi and Keno Hill utilizes forward contracts to buy CAD, some of which are designated as cash flow hedges. As of December 31, 2024, we have a total of 378 forward contracts outstanding to buy a total of CAD $ 279.3 million having a notional amount of USD$ 206.6 million with CAD-to-USD exchange rates ranging between 1.2816 and 1.4223 , with the following exposures from 2025-2026: • Forecasted cash operating costs at Casa Berardi and Keno Hill of CAD $ 198.6 million at an average CAD-to-USD exchange rate of 1.34 . • Forecasted capital expenditures at Casa Berardi of CAD$ 15.8 million at an average CAD-to-USD exchange rate of 1.345 . • Forecasted capital expenditures at Keno Hill of CAD$ 47.7 million at an average CAD-to-USD exchange rate of 1.373 . • Forecasted exploration expenditures at Casa Berardi and Keno Hill of CAD$ 5.6 million at an average CAD-to-USD exchange rate of 1.4025 . • Forecasted Corporate costs of CAD$ 11.7 million at an average CAD-to-USD exchange rate of 1.368 . As of December 31, 2024 and 2023, we recorded the following balances for the fair value of the contracts (in millions): December 31, Balance sheet line item: 2024 2023 Other current assets $ — $ 2.7 Other non-current assets — 2.0 Current derivative liabilities ( 8.2 ) ( 1.1 ) Non-current derivative liabilities ( 2.0 ) ( 0.4 ) Net unrealized losses of approximately $ 8.0 million related to the effective portion of the hedges were included in accumulated other comprehensive income (loss) as of December 31, 2024. Unrealized gains and losses will be transferred from accumulated other comprehensive loss to current earnings as the underlying operating expenses are recognized. We estimate approximately $ 6.0 million in net unrealized losses included in accumulated other comprehensive income (loss) as of December 31, 2024 will be reclassified to current earnings in the next twelve months. Net realized losses of approximately $ 3.8 million on contracts related to underlying expenses which have been recognized were transferred from accumulated other comprehensive loss and included in cost of sales and other direct production costs for the year ended December 31, 2024. Net unrealized losses of approximately $ 5.7 million related to contracts not designated as hedges and no net unrealized gains or losses related to ineffectiveness of the hedges were included in fair value adjustments, net on our consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2024. Net realized losses of approximately $ 3.6 million on contracts related to underlying expenses which have been recognized were transferred from accumulated other comprehensive loss and included in cost of sales and other direct production costs for the year ended December 31, 2023. Net unrealized gains of approximately $ 1.2 million related to contracts not designated as hedges and no net unrealized gains or losses related to ineffectiveness of the hedges were included in fair value adjustments, net on our consolidated statements of operations and comprehensive (loss) income for the year ended December 31, 2023. Net realized gains of approximately $ 0.8 million on contracts related to underlying expenses which have been recognized were transferred from accumulated other comprehensive loss and included in cost of sales and other direct production costs for the year ended December 31, 2022. Net unrealized gains of approximately $ 0.1 million related to contracts not designated as hedges and no net unrealized gains or losses related to ineffectiveness of the hedges were included in fair value adjustments, net on our consolidated statements of operations and comprehensive income (loss) for the year ended December 31, 2022. Metals Prices We are currently using financially-settled forward contracts to manage the exposure to: • changes in prices of silver, gold, zinc and lead contained in our concentrate shipments between the time of shipment and final settlement; and • changes in prices of zinc and lead (but not silver and gold) contained in our forecasted future concentrate shipments. The following tables summarize the quantities of metals committed under forward sales contracts at December 31, 2024 and 2023: December 31, 2024 Ounces/pounds under contract (in 000's) Average price per ounce/pound Silver Gold Zinc Lead Silver Gold Zinc Lead (ounces) (ounces) (pounds) (pounds) (ounces) (ounces) (pounds) (pounds) Contracts on provisional sales 2025 settlements 1,535 2 20,834 14,661 $ 31.46 $ 2,673 $ 1.40 $ 0.97 Contracts on forecasted sales 2025 settlements — — 59,194 47,840 N/A N/A $ 1.39 $ 0.99 2026 settlements — — 6,283 52,911 N/A N/A $ 1.41 $ 1.03 December 31, 2023 Ounces/pounds under contract (in 000's) Average price per ounce/pound Silver Gold Zinc Lead Silver Gold Zinc Lead (ounces) (ounces) (pounds) (pounds) (ounces) (ounces) (pounds) (pounds) Contracts on provisional sales 2024 settlements 735 3 441 15,542 $ 24.40 $ 2,045 $ 1.51 $ 1.00 Contracts on forecasted sales 2024 settlements — — — 56,713 N/A N/A N/A $ 0.98 2025 settlements — — — 49,273 N/A N/A N/A $ 0.98 At December 31, 2024 and 2023, we recorded the following balances for the fair value of forward contracts held at that time (in millions): December 31, 2024 December 31, 2023 Balance sheet line item: Contracts in an asset position Contracts in a liability position Net asset (liability) Contracts in an asset position Contracts in a liability position Net asset (liability) Other current assets $ 11.5 $ — $ 11.5 $ 3.1 $ — $ 3.1 Other non-current assets 6.6 — 6.6 1.5 — 1.5 Current derivatives liability — — — — ( 0.1 ) ( 0.1 ) Net realized and unrealized gains of approximately $ 13.4 million related to the effective portion of the contracts designated as hedges were included in accumulated other comprehensive loss as of December 31, 2024. Realized and unrealized gains and losses will be transferred from accumulated other comprehensive loss to current earnings as the underlying forecasted sales transaction is recognized. We estimate approximately $ 7.9 million in net realized and unrealized gains included in accumulated other comprehensive loss as of December 31, 2024 will be reclassified to current earnings in the next twelve months. The realized gains arose due to cash settlement of zinc and lead contracts in 2023 and zinc contracts in 2022 prior to maturity for cash proceeds of $ 8.5 million and $ 17.4 million, respectively. We recognized a net gain of $ 1.3 million, including a $ 11.4 million gain transferred from accumulated other comprehensive income (loss), during 2024 on the contracts utilized to manage exposure to prices of metals in our concentrate shipments, which is included in sales. The net gain recognized on the contracts offsets loss related to price adjustments on our provisional concentrate sales, both of which resulted from changes to silver, gold, lead and zinc prices between the time of sale and final settlement. We recognized a net gain of $ 19.7 million during 2023 on the contracts utilized to manage exposure to prices of metals in our concentrate shipments, which is included in sales. The net gain recognized on the contracts offsets loss related to price adjustments on our provisional concentrate sales, both of which resulted from changes to silver, gold, lead and zinc prices between the time of sale and final settlement. We recognized a net loss of $ 5.8 million during 2022 on the contracts utilized to manage exposure to prices of metals in our concentrate shipments, which is included in sales of products. The net loss recognized on the contracts offsets gains related to price adjustments on our provisional concentrate sales, both of which resulted from changes to silver, gold, lead and zinc prices between the time of sale and final settlement. Credit-risk-related Contingent Features Certain of our derivative contracts contain cross default provisions which provide that a default under our revolving credit agreement would cause a default under the derivative contract. As of December 31, 2024, we have not posted any collateral related to these contracts. The fair value of derivatives in a net liability position related to these arrangements was $ 10.2 million as of December 31, 2024, and includes accrued interest but excludes any adjustment for nonperformance risk. If we were in breach of any of these provisions at December 31, 2024, we could have been required to settle our obligations under the agreements at their termination value of $ 10.2 million.

Note 11- Fair Value Measurement

Note 11- Fair Value Measurement	12 Months Ended
	Dec. 31, 2024
Disclosure Text Block [Abstract]
Fair Value Measurement	Note 11: Fair Value Measurement Fair value adjustments, net is comprised of the following (in thousands): Year Ended December 31, 2024 2023 2022 Loss (gain) on derivative contracts $ ( 5,907 ) $ 3,168 $ 844 Unrealized gain (loss) on investments in equity securities 3,703 ( 243 ) ( 5,632 ) Gain on disposition or exchange of investments — — 65 Total fair value adjustments, net $ ( 2,204 ) $ 2,925 $ ( 4,723 ) Accounting guidance has established a hierarchy for inputs used to measure assets and liabilities at fair value on a recurring basis. The fair value hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels included in the hierarchy are: Level 1: quoted prices in active markets for identical assets or liabilities; Level 2: significant other observable inputs; and Level 3: significant unobservable inputs. The table below sets forth our assets and liabilities (in thousands) that were accounted for at fair value on a recurring basis and the fair value calculation input hierarchy level that we have determined applies to each asset and liability category. See Note 6 for information on the fair values of our defined benefit pension plan assets. Balance at Balance at Input Assets: Cash and cash equivalents: Money market funds and other bank deposits $ 26,868 $ 106,374 Level 1 Current and non-current investments: Equity securities 33,158 32,284 Level 1 Trade accounts receivable: Receivables from provisional concentrate sales 31,515 17,940 Level 2 Derivative contracts - other current assets and other non-current assets: Metal forward contracts 18,039 4,698 Level 2 Foreign exchange contracts — 4,657 Level 2 Restricted cash and cash equivalents balances: Certificates of deposit and other deposits 1,177 1,165 Level 1 Liabilities Derivative contracts - current and non-current derivative liabilities: Metal forward contracts $ — $ 40 Level 2 Foreign exchange contracts 10,176 1,508 Level 2 Cash and cash equivalents consist primarily of money market funds which are carried at fair value. Current and non-current restricted cash and cash equivalents balances consist primarily of certificates of deposit, U.S. Treasury securities, and other deposits which are carried at fair value. Our non-current investments consist of marketable equity securities of companies in the mining industry which are valued using quoted market prices for each security. Trade accounts receivable include amounts due to us for shipments of concentrates, doré, metals sold from doré, and carbon material sold to customers. Revenues and the corresponding accounts receivable for sales of metals products are recorded when title and risk of loss transfer to the customer (generally at the time of ship loading, or at the time of arrival at the customer for trucked products). Sales of concentrates are recorded using estimated forward prices for the anticipated month of settlement applied to our estimate of payable metal quantities contained in each shipment. Sales are recorded net of estimated treatment and refining charges, which are also impacted by changes in metals prices and quantities of contained metals. We estimate the prices at which sales of our concentrates will be settled due to the time elapsed between shipment and final settlement with the customer. Receivables for previously recorded concentrate sales are adjusted to reflect estimated forward metals prices at the end of each period until final settlement by the customer. We obtain the forward metals prices used each period from a pricing service. Changes in metals prices between shipment and final settlement result in changes to revenues previously recorded upon shipment. We use financially-settled forward contracts to manage exposure to changes in the exchange rate between the USD and CAD, and the impact on CAD-denominated operating and capital costs incurred at our Casa Berardi unit and Keno Hill development project (see Note 10 for more information). The contracts related to operating costs qualify for hedge accounting, while the contracts related to capital costs have not been designated as hedges. Unrealized gains and losses related to the effective portion of the contracts designated as hedges are included in accumulated other comprehensive loss, and unrealized gains and losses related to the contracts not designated as hedges and the ineffective portion of the contracts designated as hedges are included in earnings each period. The fair value of each contract represents the present value of the difference between the forward exchange rate for the contract settlement period as of the measurement date and the contract settlement exchange rate. We use financially-settled forward contracts to manage the exposure to changes in prices of silver, gold, zinc and lead contained in our concentrate shipments that have not reached final settlement. We also use financially-settled forward contracts to manage the exposure to changes in prices of zinc and lead (but not silver and gold) contained in our forecasted future concentrate shipments (see Note 10 for more information). The forward contracts for silver and gold contained in our concentrate shipments have not been designated as hedges and are marked-to-market through earnings each period. The fair value of each forward contract represents the present value of the difference between the forward metal price for the contract settlement period as of the measurement date and the contract settlement metal price. At December 31, 2024, our Senior Notes and IQ Notes were recorded at their carrying values of $ 472.2 million and $ 33.6 million, respectively, net of unamortized initial purchaser discount/premium and issuance costs. The estimated fair values of our Senior Notes and IQ Notes were $ 478.5 million and $ 34.1 million, respectively, at December 31, 2024. Quoted prices, which we consider to be Level 1 inputs, are utilized to estimate the fair value of the Senior Notes. Unobservable inputs which we consider to be Level 3, including an assumed current annual yield of 6.77 %, are utilized to estimate the fair value of the IQ Notes. The credit agreement, which we consider to be Level 1 in the fair value hierarchy, has a carrying and fair value of $ 23.0 million. See Note 11 for more information.

Note 12 - Stockholders' Equity

Note 12 - Stockholders' Equity	12 Months Ended
	Dec. 31, 2024
Equity [Abstract]
Stockholders' Equity	Note 12: Stockholders’ Equity Common Stock Subject to the rights of the holders of any outstanding shares of preferred stock, each share of common stock is entitled to: (i) one vote on all matters presented to the stockholders, with no cumulative voting rights; (ii) receive such dividends as may be declared by the Board of Directors out of funds legally available therefor; and (iii) in the event of our liquidation or dissolution, share ratably in any distribution of our assets. Dividends In September 2011 and February 2012, our Board of Directors (“Board”) adopted a common stock dividend policy that had two components: (1) a dividend that links the amount of dividends on our common stock to our average quarterly realized silver price in the preceding quarter, and (2) a minimum annual dividend of $ 0.01 per share of common stock, in each case, payable quarterly, if and when declared. In September 2020, we amended the dividend policy to (1) reduce the minimum quarterly realized silver price threshold for the first component above from $ 30 per ounce to $ 25 per ounce, and (2) increased the minimum annual dividend from $ 0.01 per share to $ 0.015 per share. In each of May and September 2021, our Board approved an increase in our silver-linked dividend policy by $0.01 per year, and in September 2021 also approved a reduction in the minimum realized silver price threshold to $ 20 from $ 25 per ounce. Total quarterly common stock and preferred stock dividends declared by our Board for the years ended December 31, 2024, 2023 and 2022 amounted to $ 25.5 million , $ 15.7 million and $ 12.9 million respectively. The common stock dividend declared by the Board in the third quarter of 2020 and each subsequent quarter with the exception of the fourth quarter of 2022 has included the silver-linked component, as the realized silver price was above the minimum thresholds applicable to each of those quarters. Prior to 2011, no dividends had been declared on our common stock since 1990. In early February 2025, we revised our common stock dividend policy to eliminate the silver-linked component. We intend to maintain the annual common stock dividend, however the declaration and payment of dividends remain in the sole discretion of our Board of Directors, and there can be no assurance it will declare any future dividend. At-The-Market Equity Distribution Agreement Pursuant to an equity distribution agreement dated February 18, 2021, we may offer and sell up to 60 million shares of our common stock from time to time to or through sales agents in ATM offerings. Sales of the shares, if any, will be made by means of ordinary brokers transactions or as otherwise agreed between the Company and the agents as principals. Whether or not we engage in sales from time to time may depend on a variety of factors, including share price, our cash resources, customary black-out restrictions, and whether we have any material inside information. The agreement can be terminated by us at any time. Any sales of shares under the equity distribution agreement are registered under the Securities Act of 1933, as amended, pursuant to a shelf registration statement on Form S-3. During the year ended December 31, 2024, we sold 9,339,287 shares under the agreement for proceeds of $ 58.4 million, net of commissions and fees of approximately $ 0.9 million. In total since September 2022 through December 31, 2024, we have sold 23,843,684 shares under the agreement for total proceeds of $ 132.3 million, net of commissions and fees of $ 2.1 million. Common Stock Repurchase Program In 2012, our Board approved a stock repurchase program under which we are authorized to repurchase up to 20 million shares of our outstanding common stock from time to time in open market or privately negotiated transactions, depending on prevailing market conditions and other factors. The repurchase program may be modified, suspended or discontinued by us at any time. As of December 31, 2024, a total of 934,100 shares have been repurchased under the program, at an average price of $ 3.99 per share. No shares were purchased under the program during the periods covered by these financial statements. Preferred Stock We have 157,756 shares (2023: 157,776 shares) of Series B Preferred Stock (“Preferred Stock”) outstanding which are listed on the New York Stock Exchange. The Preferred Stock ranks senior to our common stock with respect to dividend payments, and amounts due upon liquidation, dissolution or winding up. While the Preferred Stock remains outstanding, we cannot authorize the creation or issuance of any class or series of stock that ranks senior to the Preferred Stock with respect to dividend payments, and amounts due upon liquidation, dissolution or winding up, without the consent of 66 2/3% of the Preferred Stockholders. Preferred Stockholders are entitled to receive, when, as and if declared by our Board, an annual cash dividend of $ 3.50 per share of Preferred Stock, payable quarterly in arrears. Dividends are cumulative from the date of issuance, regardless of whether we have assets legally available for such payment. Total quarterly preferred stock dividends declared by our Board for the years ended December 31, 2024, 2023 and 2022 amounted to $ 552,000 per year, respectively. Interest is not payable on any accumulated dividends. The Preferred Stock is redeemable at our option at $ 50 per share of Preferred Stock, plus any unpaid dividends up to the date of redemption. The Preferred Stock has a liquidation preference of $ 50 per share of Preferred stock, or $ 7.9 million, plus an amount per share equal to all dividends undeclared and unpaid thereon to the date of final distribution. Except in limited circumstances, the Preferred Stockholders have no voting rights. Each share of Preferred Stock is convertible, in whole or in part, at the holder’s option into our common stock at a conversion price of $ 15.55 per common stock. During 2022, 40 shares of Preferred Stock were converted into 128 shares of our common stock. Stock Award Plans We use stock-based compensation plans to aid us in attracting, retaining and motivating our employees, as well as to provide incentives more directly linked to increases in stockholder value. These plans provide for the grant of options to purchase shares of our common stock, the issuance of restricted stock units, performance-based shares and other equity-based awards. Stock-based compensation expense amounts for restricted stock units, performance based grants and common stock grants (collectively "incentive compensation") to employees, shares granted to the interim CEO and non-employee directors totaled $ 8.7 million, $ 6.6 million and $ 6.0 million for the years ended December 31, 2024, 2023 and 2022, respectively. Over the next twelve months, we expect to recognize $ 5.6 million in additional compensation expense as outstanding restricted stock units and performance-based shares vest. Stock Incentive Plan During 2010, our stockholders voted to approve the adoption of our 2010 Stock Incentive Plan and to reserve up to 20,000,000 shares of common stock for issuance under the plan. In the second quarter of 2019, our stockholders voted to approve an amendment to the plan to restore the number of shares of common stock available for issuance under the 2010 plan to the original 20,000,000 shares (along with other changes). The Board has broad authority under the 2010 plan to fix the terms and conditions of individual agreements with participants, including the duration of the award and any vesting requirements. As of December 31, 2024, there were 10,175,414 shares available for future grant under the 2010 plan. Directors’ Stock Plan In 2017, we adopted the amended and restated Hecla Mining Company Stock Plan for Non-Employee Directors (the “Directors’ Stock Plan”), which may be terminated by our Board of Directors at any time. Each non-employee director is credited each year with that number of shares determined by dividing $ 120,000 by the average closing price for our common stock on the New York Stock Exchange for the prior calendar year. A minimum of 25% of the shares credited each year is held in trust for the benefit of each director until delivered to the director. Each director may elect, prior to the first day of the applicable year, to have a greater percentage contributed to the trust for that year. Delivery of the shares from the trust occurs upon the earliest of: (1) death or disability; (2) retirement; (3) a cessation of the director’s service for any other reason; (4) a change in control; or (5) at the election of the director at any time, provided, however, that shares must be held in the trust for at least two years prior to delivery. During 2024, 2023, and 2022, 150,387 , 125,063 , and 98,310 shares, respectively, were credited to the non-employee directors. During 2024, 2023, and 2022, $ 0.8 m illion, $ 0.7 million, and $ 0.4 million, respectively, was charged to general and administrative expense associated with the shares issued to the non-employee directors. During 2022, two directors retired and 388,175 shares were distributed to them. At December 31, 2024, there were 2,039,789 available for grant in the future under the plan. Restricted Stock Units Unvested restricted stock units ("RSU") activity granted by the Board to employees are summarized as follows: Shares Weighted Average Unvested, January 1, 2022 2,022,352 $ 3.97 Granted 1,256,532 $ 4.41 Canceled ( 177,801 ) $ 4.41 Vested ( 1,304,968 ) $ 3.97 Unvested, December 31, 2022 1,796,115 $ 4.23 Granted 1,316,120 $ 5.05 Canceled ( 336,060 ) $ 4.90 Vested ( 918,927 ) $ 5.05 Unvested, December 31, 2023 1,857,248 $ 4.28 Granted 1,538,407 $ 5.17 Canceled ( 130,450 ) $ 5.00 Vested ( 908,132 ) $ 4.45 Unvested, December 31, 2024 2,357,073 $ 4.76 Unvested RSUs will be forfeited by participants upon termination of employment in advance of vesting, with the exception of termination due to retirement if certain criteria are met. At December 31, 2024, there was unrecognized compensation expense of $ 6.8 million related to unvested RSUs to be recognized over a weighted average period of 2.0 years. The fair value of RSUs that vested during 2024, 2023 and 2022 was $ 4.7 million, $ 4.6 million and $ 5.8 million, respectively. Performance-Based Shares We periodically grant performance-based share awards ("PSUs") to certain executive employees. The value of the PSUs (if any) is based on the ranking of the market performance of our common stock relative to the performance of the common stock of a group of peer companies over a three-year measurement period. The number of shares to be issued (if any) is based on the value of the PSUs divided by the share price at grant date. The compensation cost is measured using a Monte Carlo simulation to estimate their value at grant date, and the expense related to the performance-based awards (if any) will be recognized on a straight-line basis over the thirty months following that date of the PSUs. Unvested PSUs activity granted by the Board to eligible employees are summarized as follows: Shares Weighted Average Unvested, January 1, 2022 874,422 $ 2.61 Granted 322,796 $ 3.78 Vested (1) ( 597,360 ) $ 0.31 Unvested, December 31, 2022 599,858 $ 5.54 Granted 336,096 $ 3.54 Canceled ( 109,727 ) $ 5.30 Vested (1) ( 205,425 ) $ 8.17 Unvested, December 31, 2023 620,802 $ 3.63 Granted 542,770 $ 3.32 Forfeited (2) ( 290,950 ) $ 3.78 Unvested, December 31, 2024 872,622 $ 3.39 (1) Vested on December 31 and distributed in February of the following year (2) The awards granted in 2022 did not meet the established performance criteria and accordingly were forfeited as unvested Unvested PSUs will be forfeited by participants upon termination of employment in advance of vesting. At December 31, 2024, there was an unrecognized compensation expense of $ 1.6 million related to unvested PSUs to be recognized over a weighted average period of 1.6 years. The fair value of PSUs that vested during on December 31, 2023 and 2022, and were distributed in February 2024 and 2023 was $ 0.7 million and $ 1.0 million, respectively. In connection with the vesting of restricted RSUs, PSUs and other stock grants, employees have in the past, at their election and when permitted by us, chosen to satisfy their tax withholding obligations through net share settlement, pursuant to which we withhold the number of shares necessary to satisfy such withholding obligations and pay the obligations in cash. Pursuant to such net settlements, in 2024, we withheld 277,966 shares valued at $ 1.2 million, or $ 4.31 per share. In 2023, we withheld 404,514 shares valued at $ 2.0 million, or $ 5.03 per share. In 2022, we withheld 737,25 8 shares valued at $ 3.7 million, or $ 4.99 per share. These shares become treasury shares unless we cancel them. Warrants We have 2,068,000 (2023: 4,136,000 ) warrants outstanding. The warrants were issued as part of the Klondex acquisition purchase consideration in July 2018. Each warrant entitles the warrant holder to purchase one share of our common stock. During the year end December 31, 2024, the warrant holder of 2,068,000 warrants with an exercise price of $ 1.57 and an expiration date of February 2029, exercised all their warrants by means of a cashless exercise whereby 1,488,050 shares were issued. The outstanding warrants have the following key terms: Number of warrants Exercise price Expiration date 2,068,000 $ 8.02 April 2032

Note 13 - Accumulated Other Com

Note 13 - Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss)	Note 13: Accumulated Other Comprehensive Income (Loss) The following table lists the beginning balance, yearly activity and ending balance of each component of “Accumulated other comprehensive income (loss), net” (in thousands): Changes in fair value of derivative contracts designated as hedge transactions Adjustments Total Balance January 1, 2022 $ ( 4,675 ) $ ( 23,781 ) $ ( 28,456 ) 2022 change 13,837 17,067 30,904 Balance December 31, 2022 9,162 ( 6,714 ) 2,448 2023 change 4,546 ( 1,157 ) 3,389 Balance December 31, 2023 13,708 ( 7,871 ) 5,837 2024 change ( 7,714 ) ( 8,389 ) ( 16,103 ) Balance December 31, 2024 $ 5,994 $ ( 16,260 ) $ ( 10,266 ) The amounts above are net of the income tax effect of such balances and activity as summarized in the following table (in thousands): Changes in fair value of derivative contracts designated as hedge transactions Adjustments Total Balance January 1, 2022 $ 4,689 $ 6,196 $ 10,885 2022 change ( 5,233 ) ( 6,454 ) ( 11,687 ) Balance December 31, 2022 ( 544 ) ( 258 ) ( 802 ) 2023 change ( 1,683 ) 428 ( 1,255 ) Balance December 31, 2023 ( 2,227 ) 170 ( 2,057 ) 2024 change 2,822 3,069 5,891 Balance December 31, 2024 $ 595 $ 3,239 $ 3,834 See Note 6 for more information on our employee benefit plans and Note 10 for more information on our derivative instruments.

Note 14 - Product Inventories

Note 14 - Product Inventories	12 Months Ended
	Dec. 31, 2024
Inventory Disclosure [Abstract]
Product Inventories	Note 14: Product Inventories Product Inventories Our major components of product inventories are (in thousands): 2024 2023 Concentrates $ 15,030 $ 13,328 Stockpiled ore 13,168 7,168 In-process 6,764 8,327 Total product inventories $ 34,962 $ 28,823

Note 15 - Properties, Plants, E

Note 15 - Properties, Plants, Equipment and Mine Development, net, and Lease Commitments	12 Months Ended
	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
Properties, Plants, Equipment and Mine Development, net, and Lease Commitments	Note 15: Properties, Plants, Equipment and Mine Development, net, and Lease Commitments Properties, Plants, Equipment and Mine Development Our major components of properties, plants, equipment, and mine development are (in thousands): December 31, 2024 2023 Mining properties, including asset retirement obligations $ 958,858 $ 911,018 Development costs 671,741 630,391 Plants and equipment 1,805,236 1,666,577 Land 35,680 35,112 Mineral interests 1,166,045 1,164,390 Construction in progress 66,566 121,022 4,704,126 4,528,510 Less accumulated depreciation, depletion and amortization 2,010,007 1,862,260 Net carrying value $ 2,694,119 $ 2,666,250 During 2024, we incurred total capital expenditures of $ 214.5 million. T his excludes non-cash items for equipment acquired under finance leases and adjustments for asset retirement obligations, and includes acquisitions of mineral interests and land. The expenditures include d $ 49.6 million at Lucky Friday, $ 47.8 million at Greens Creek, $ 60.7 million at Casa Berardi and $ 54.9 million at Keno Hill. Mineral interests include amounts for value beyond proven and probable reserves (“VBPP”) related to mines and exploration or pre-development interests acquired by us which are not depleted until the mineralized material they relate to is converted to proven and probable reserves. As of December 31, 2024, mineral interests included VBPP assets of $ 323.6 million, $ 388.2 million, $ 83.3 million and $ 95.7 million , respectively, at Casa Berardi, Nevada, Greens Creek and Keno Hill, along with various other properties. As of December 31, 2023, mineral interests included VBPP assets of $ 323.6 million, $ 383.6 million, $ 86.3 million and $ 102.1 million, respectively, at Casa Berardi, Nevada, Greens Creek and Keno Hill, along with various other properties. Finance Leases We periodically enter into lease agreements, primarily for equipment at our operations, which we have determined to be finance leases. As of December 31, 2024 and 2023, we have recorded $ 108.5 million a nd $ 106.9 million, respectively, for the gross amount of assets acquired under the finance leases an d $ 94.4 million and $ 86.5 million, respectively, in accumulated depreciation on those assets, classified as plants and equipment in Properties, plants, equipment and mine development . See Note 9 for information on future obligations related to our finance leases.

Note 16 - Commitments, Continge

Note 16 - Commitments, Contingencies, and Obligations	12 Months Ended
	Dec. 31, 2024
Disclosure Text Block [Abstract]
Commitments, Contingencies, and Obligations	Note 16: Commitments, Contingencies, and Obligations San Mateo Creek Basin, New Mexico In July 2018, the EPA informed Hecla Limited that it and several other potentially responsible parties (“PRPs”) may be liable for cleanup of the San Mateo Creek Basin (“SMCB”), which is an approximately 321 square mile area in New Mexico that contains numerous legacy uranium mines and mills. At the time, the EPA stated it had incurred approximately $ 9.6 million in response costs. Also, in May, 2022, and August, 2024, Hecla Limited received a letter from a PRP notifying Hecla Limited that other PRPs may seek cost recovery and contribution from Hecla Limited under CERCLA for certain investigatory work performed by the PRPs at the SMCB site. Hecla Limited cannot with reasonable certainty estimate the amount or range of liability, if any, relating to this matter because of, among other reasons, the lack of information concerning the site, including the relative contributions of contamination by the various PRPs. Carpenter Snow Creek and Barker-Hughesville Sites in Montana In July 2010, the EPA made a formal request to Hecla for information regarding the Carpenter Snow Creek Superfund site located in Cascade County, Montana. The Carpenter Snow Creek site is located in a historical mining district, and in the early 1980s Hecla Limited leased 6 mining claims and performed limited exploration activities at the site. Hecla Limited terminated the mining lease in 1988. In June 2011, the EPA informed Hecla Limited that it believes Hecla Limited, and several other PRPs, may be liable for cleanup of the site or for costs incurred by the EPA in cleaning up the site. The EPA stated in the letter that it has incurred approximately $ 4.5 million in response costs and estimated that total remediation costs may exceed $ 100 million. Hecla Limited cannot with reasonable certainty estimate the amount or range of liability, if any, relating to this matter because of, among other reasons, the lack of information concerning the site, including the relative contributions of contamination by various other PRPs. In February 2017, the EPA made a formal request to Hecla for information regarding the Barker-Hughesville Mining District Superfund site located in Judith Basin and Cascade Counties, Montana. Hecla Limited submitted a response in April 2017. The Barker-Hughesville site is located in a historic mining district, and between approximately June and December 1983, Hecla Limited was party to an agreement with another mining company under which limited exploration activities occurred at or near the site. In August 2018, the EPA informed Hecla Limited that it and several other PRPs may be liable for cleanup of the site or for costs incurred by the EPA in cleaning up the site. The EPA did not include an amount of its alleged response costs to date. Hecla Limited cannot with reasonable certainty estimate the amount or range of liability, if any, relating to this matter because of, among other reasons, the lack of information concerning past or anticipated future costs at the site and the relative contributions of contamination by various other PRPs. Lucky Friday and Keno Hill Environmental Issues Effective on October 16, 2024, Hecla Limited and the EPA are parties to a Consent Agreement and Final Order (the “Settlement”) resolving certain liabilities of Hecla Limited under the Clean Water Act involving the Lucky Friday mine’s permitted water discharges between 2018 and 2024. Under the Settlement, Hecla Limited will pay the EPA $ 174,300 and undertake a Supplemental Environmental Project involving river habitat restoration on the South Fork of the Coeur d’Alene River estimated to cost $ 299,000 . Litigation Related to Klondex Acquisition On May 24, 2019, a purported Hecla stockholder filed a putative class action lawsuit in the U.S. District Court for the Southern District of New York against Hecla and certain of our executive officers, one of whom was also a director. The complaint, purportedly brought on behalf of all purchasers of Hecla common stock from March 19, 2018 through and including May 8, 2019, asserts claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder and seeks, among other things, damages and costs and expenses. Specifically, the complaint alleges that Hecla, under the authority and control of the individual defendants, made certain materially false and misleading statements and omitted certain material information regarding Hecla’s Nevada assets. The complaint was dismissed by the Federal District Court with prejudice on September 30, 2024. On October 28, 2024, the plaintiffs filed a notice of appeal with the United States Court of Appeals for the Second Circuit. Related to this class action lawsuit, Hecla has been named as a nominal defendant in a shareholder derivative lawsuit which also names as defendants certain current and past members of Hecla’s Board of Directors and certain past officers of Hecla. The case was filed on May 4, 2022 in the Delaware Chancery Court. In general terms, the suit alleges breaches of fiduciary duties by the individual defendants, waste of corporate assets and unjust enrichment, and seeks damages, purportedly on behalf of Hecla. Debt See Note 9 for information on the commitments related to our debt arrangements as of December 31, 2024. Other Commitments Our contractual obligations as of December 31, 2024 incl uded open purchase orders and commitments of $ 5.8 million, $ 9.7 million, $ 11.2 million, and $ 9.1 million for various capital and non -capital items at Greens Creek, Lucky Friday, Keno Hill, and Casa Berardi, respectively. We also have total commitments of $ 24.1 million relating to scheduled payments on finance leases, including interest, primarily for equipment at our Greens Creek, Lucky Friday, Casa Berardi, and Keno Hill units, and total commitments of $ 10.8 million relating to payments on operating leases (see Note 9 for more information). As part of our ongoing business and operations, we are required to provide surety bonds, bank letters of credit, and restricted deposits for various purposes, including financial support for environmental reclamation obligations and workers compensation programs. As of December 31, 2024, we had surety bonds totaling $ 213.6 million and letters of credit totaling $ 6.2 million in place as financial support for future reclamation and closure costs, self-insurance, and employee benefit plans. The obligations associated with these instruments are generally related to performance requirements that we address through ongoing operations. As the requirements are met, the beneficiary of the associated instruments cancels or returns the instrument to the issuing entity. Certain of these instruments are associated with operating sites with long-lived assets and will remain outstanding until closure of the sites. We believe we are in compliance with all applicable bonding requirements and will be able to satisfy future bonding requirements as they arise. Other Contingencies We also have certain other contingencies resulting from litigation, claims, EPA investigations, and other commitments and are subject to a variety of environmental and safety laws and regulations incident to the ordinary course of business. We currently have no basis to conclude that any or all of such contingencies will materially affect our financial position, results of operations or cash flows. However, in the future, there may be changes to these contingencies, or additional contingencies may occur, any of which might result in an accrual or a change in current accruals recorded by us, and there can be no assurance that their ultimate disposition will not have a material adverse effect on our financial position, results of operations or cash flows.

Note 2 - Summary of Significa_2

Note 2 - Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Principles of Consolidation, Basis of Presentation and Other Information	A. Principles of Consolidation, Basis of Presentation and Other Information — Our Consolidated Financial Statements have been prepared in accordance with GAAP, and include our accounts and our wholly-owned subsidiaries’ accounts. All inter-company balances and transactions have been eliminated in consolidation. Equity method accounting is applied for our investment in Cascadia Minerals Ltd. ("Cascadia"), over which the Company does not have control, but does have significant influence over the activities that most significantly impact the investments operations and financial performance.
Assumptions and Use of Estimates	B. Assumptions and Use of Estimates — Preparing financial statements requires management to make estimates and assumptions that affect the reported amounts and related disclosure of assets, liabilities, revenue and expenses at the date of the consolidated financial statements and reporting periods. We consider our most significant accounting estimates to be future metals prices; obligations for environmental, reclamation and closure matters and mineral reserves and resources. Other significant areas requiring the use of management assumptions and estimates relate to reserves for contingencies and litigation; asset impairments, including long-lived assets; valuation of deferred tax assets; and post-employment, post-retirement and other employee benefit assets and liabilities. We have based our estimates on historical experience and various other assumptions that we believe to be reasonable. Accordingly, actual results may differ materially from these estimates under different assumptions or conditions.
Cash and Cash Equivalents	C. Cash and Cash Equivalents — Cash and cash equivalents consist of all cash balances and highly liquid investments with a remaining maturity of three months or less when purchased and are carried at fair value. Cash and cash equivalents are invested in money market funds, certificates of deposit, U.S. government and federal agency securities, municipal securities and corporate bonds. At certain times, amounts on deposit may exceed federal deposit insurance limits.
Investments	D. Investments — We determine the appropriate classification of our investments at the time of purchase and re-evaluate such determinations at each reporting date. Currently all our investments are marketable equity securities and are carried at fair value or accounted for under the equity method. Marketable securities we anticipate selling within the next twelve months are included in other current assets. Gains and losses on the sale of securities are recognized on a specific identification basis. Gains and losses of marketable securities and investments accounted for under the equity method are included as a component of a separate line item, “fair value adjustments, net,” and "Other income", respectively, both of which are included on our consolidated statements of operations and comprehensive income (loss).
Inventories	E. Inventories — Major types of inventories include materials and supplies and metals product inventory, which is determined by the stage at which the ore is in the production process (stockpiled ore, in-process and finished goods). Product inventories are stated at the lower of full cost of production or estimated net realizable value based on current metals prices. Materials and supplies inventories are stated at average cost. Stockpiled ore inventory represents ore that has been mined, hauled to the surface, and is available for further processing. Stockpiles are measured by estimating the number of tons added and removed from the stockpile, the amount of contained metal ounces or pounds (based on assay data) and the estimated metallurgical recovery rates (based on the expected processing method). Costs are allocated to a stockpile based on relative values of material stockpiled and processed using current mining costs incurred up to the point of stockpiling the ore, including applicable overhead, depreciation, depletion and amortization relating to mining operations, and removed at each stockpile’s average cost per recoverable unit. In-process inventory represents material that is currently in the process of being converted to a saleable product. Conversion processes vary depending on the nature of the ore and the specific processing facility, but include mill in-circuit, flotation, and carbon-in-leach. In-process material is measured based on assays of the material fed into the process and the projected recoveries of the respective processing plants. In-process inventory is valued at the lower of the average cost of the material fed into the process attributable to the source material coming from the mine and stockpile plus the in-process conversion costs, including applicable depreciation, depletion and amortization relating to the process facilities incurred to that point in the process, or net realizable value. Finished goods inventory includes doré and concentrates at our operations, doré in transit to refiners or at refiners waiting to be processed, and bullion in our accounts at refineries.
Restricted Cash and Investments	F. Restricted Cash and Cash Equivalents — Restricted cash and cash equivalents primarily represent investments in certificates of deposit and bonds of U.S. government agencies and are restricted primarily for reclamation funding or surety bonds. Restricted cash and cash equivalents balances are carried at fair value. Non-current restricted cash and cash equivalents is reported in a separate line on the consolidated balance sheets and totaled $ 1.2 million at December 31, 2024 and 2023, respectively.
Properties, Plants, Equipment and Mineral Interests	G. Properties, Plants, Equipment and Mine Development – Costs are capitalized when it has been determined an ore body can be economically developed pursuant to certain internal investment criteria. The development stage begins at new projects when our management and/or Board of Directors makes the decision to bring a mine into commercial production, and ends when the production stage, or exploitation of reserves, begins. Expenditures incurred during the development and production stages for new assets, new facilities, alterations to existing facilities that extend the useful lives of those facilities, and major mine development expenditures are capitalized, including primary development costs such as costs of building access ways, shaft sinking, lateral development, drift development, ramps and infrastructure developments. Costs to improve, alter, or rehabilitate primary development assets which appreciably extend the life, increase capacity, or improve the efficiency or safety of such assets are also capitalized. The costs of removing overburden and waste materials to access the ore body at an open-pit mine prior to the production stage are referred to as “pre-stripping costs.” Pre-stripping costs are capitalized during the development stage. Where multiple open pits exist at an operation utilizing common facilities, pre-stripping costs are capitalized at each pit. The production stage of a mine commences when saleable materials, beyond a de minimis amount, are produced. Stripping costs incurred during the production stage are treated as variable production costs included as a component of inventory, to be recognized in cost of sales and other direct production costs in the same period as the revenue from the sale of inventory. When stripping costs incurred during the production phase result in the construction of an asset with an alternative use, such as a tailings storage facility, a portion of those stripping costs are capitalized. Costs for exploration, pre-development, secondary development at operating mines, including drilling costs related to those activities (discussed further below), and maintenance and repairs on capitalized properties, plants and equipment are charged to operations as incurred. Exploration costs include those relating to activities carried out in search of previously unidentified resources or exploration targets, (a) at undeveloped concessions, or (b) at operating mines already containing proven and probable reserves, where a determination remains pending as to whether new target deposits outside of the existing reserve areas can be economically developed. Pre-development activities involve costs incurred in the exploration stage that may ultimately benefit production, such as underground ramp development, which are expensed due to the lack of evidence of economic viability, which is necessary to demonstrate future recoverability of these expenses. At an underground mine, secondary development costs are incurred for preparation of an ore body for production in a specific ore block, stope or work area, providing a relatively short-lived benefit only to the mine area they relate to, and not to the ore body as a whole. Primary development costs benefit long-term production, multiple mine areas, or the ore body as a whole, and are therefore capitalized. Drilling, development and related costs are either classified as exploration, pre-development or secondary development, as defined above, and charged to operations as incurred, or capitalized, based on the following criteria: • whether the costs are incurred to further define resources or exploration targets at and adjacent to existing reserve areas or intended to assist with mine planning within a reserve area; • whether the drilling or development costs relate to an ore body that has been determined to be commercially mineable, and a decision has been made to put the ore body into commercial production; and • whether, at the time the cost is incurred: (a) the expenditure embodies a probable future benefit that involves a capacity, singly or in combination with other assets, to contribute directly or indirectly to future net cash inflows, (b) we can obtain the benefit and control others’ access to it, and (c) the transaction or event giving rise to our right to or control of the benefit has already occurred. If all of these criteria are met, drilling, development and related costs are capitalized. Drilling and development costs not meeting all of these criteria are expensed as incurred. The following factors are considered in determining whether or not the criteria listed above have been met, and capitalization of drilling and development costs is appropriate: • completion of a favorable economic study and mine plan for the ore body targeted; • authorization of development of the ore body by management and/or the Board of Directors; and • there is a justifiable expectation, based on applicable laws and regulations, that issuance of permits or resolution of legal issues and/or contractual requirements necessary for us to have the right to or control of the future benefit from the targeted ore body have been met. Drilling and related costs of approximately $ 12.4 million , $ 17.6 million, and $ 11.2 million for the years ended December 31, 2024, 2023 and 2022, respectively, met our criteria for capitalization listed above at our production stage properties. When assets are retired or sold, the costs and related allowances for depreciation and amortization are eliminated from the accounts and any resulting gain or loss is reflected in current period net income (loss). Our mineral interests, which are tangible assets, include acquired undeveloped mineral interests and royalty interests. Undeveloped mineral interests include: (i) resources which are measured, indicated or inferred with insufficient drill spacing or quality to qualify as proven and probable reserves; and (ii) inferred material and exploration targets not immediately adjacent to existing proven and probable reserves but accessible within the immediate mine infrastructure. Residual values for undeveloped mineral interests represent the expected fair value of the interests at the time we plan to convert, develop, further explore or dispose of the interests and are evaluated at least annually.
Depreciation, Depletion and Amortization	H. Depreciation, Depletion and Amortization — Capitalized costs are depreciated or depleted using the straight-line method or units-of-production method at rates sufficient to depreciate such costs over the shorter of estimated productive lives of such facilities or the useful life of the individual assets. Productive lives range from 2 to 14 years, but do not exceed the useful life of the individual asset. Determination of expected useful lives for amortization calculations are made on a property-by-property or asset-by-asset basis at least annually. Our estimates for reserves and resources are a key component in determining our units-of-production depreciation rates, with net book value of many assets depreciated over remaining estimated reserves. Reserves are estimates made by our professional technical personnel of the amount of metals that they believe could be economically and legally extracted or produced at the time of the reserve determination (discussed in J. Proven and Probable Mineral Reserves below). Our estimates of proven and probable mineral reserves and resources may change, possibly in the near term, resulting in changes to depreciation, depletion and amortization rates in future reporting periods. Undeveloped mineral interests and value beyond proven and probable reserves are not amortized until such time as there are proven and probable reserves or the related mineralized material is converted to proven and probable reserves. At that time, the basis of the mineral interest is amortized on a units-of-production basis. Pursuant to our policy on impairment of long-lived assets (discussed further below), if it is determined that an undeveloped mineral interest cannot be economically converted to proven and probable reserves and its carrying value exceeds its estimated undiscounted future cash flows, the basis of the mineral interest is reduced to its fair value and an impairment loss is recorded to expense in the period in which it is determined to be impaired.
Impairment of Long-lived Assets	I. Impairment of Long-lived Assets — Management reviews and evaluates the net carrying value of all facilities, including idle facilities, for impairment upon the occurrence of events or changes in circumstances that indicate that the related carrying amounts may not be recoverable. We perform the test for recoverability of each property based on the estimated probability adjusted undiscounted expected future cash flows that will be generated from operations at each property, potential future asset disposals, the estimated salvage value of the surface plant and equipment, and the value associated with property interests. Although management has made what it believes to be a reasonable estimate of factors based on current conditions and information, assumptions underlying future cash flows, which includes the estimated value of resources and exploration targets, are subject to significant risks and uncertainties. Estimates of undiscounted expected future cash flows are dependent upon, among other factors, estimates of: (i) metals to be recovered from proven and probable mineral reserves and identified resources and exploration targets beyond proven and probable reserves, (ii) future production and capital costs, (iii) estimated metals prices (considering current and historical prices, forward pricing curves and related factors) over the estimated remaining mine life, (iv) market values of mineral interests and (v) potential estimated sales value. It is possible that changes could occur in the near term that could adversely affect our estimate of future cash flows to be generated from our operating properties. If estimated probability adjusted undiscounted expected cash flows are less than the carrying value of a property, an impairment loss is recognized for the difference between the carrying value and fair value of the property.
Proven and Probable Mineral Reserves	J. Proven and Probable Mineral Reserves — At least annually, management reviews the reserves used to estimate the quantities and grades of ore at our mines which we believe can be recovered and sold economically. Management’s calculations of proven and probable mineral reserves are based on financial, engineering and geological estimates, including future metals prices and operating costs, and an assessment of our ability to obtain the permits required to mine and process the material. From time to time, management obtains external audits or reviews of reserves. Reserve estimates will change as existing reserves are depleted through production, as additional reserves are proven and added to the estimates and as market prices of metals, production or capital costs, smelter terms, the grade or tonnage of the deposit, throughput, dilution of the ore or recovery rates change.
Leases	K. Leases — Contractual arrangements are assessed at inception to determine if they represent or contain a lease. Right-of-use (“ROU”) assets related to operating leases are separately reported in the Consolidated Balance Sheets. ROU assets related to finance leases are included in Properties, plants, equipment and mine development, net. Operating and finance lease ROU assets and lease liabilities are recognized at the lease commencement date based on the present value of the future lease payments over the lease term. When the rate implicit to the lease cannot be readily determined, we utilize our incremental borrowing rate in determining the present value of the future lease payments. The incremental borrowing rate is derived from information available at the lease commencement date and represents the rate of interest that we would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment. The ROU asset includes any lease payments made and lease incentives received prior to the commencement date. Operating lease ROU assets also include any cumulative prepaid or accrued rent when the lease payments are uneven throughout the lease term. The ROU assets and lease liabilities may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option.
Income and Mining Taxes	L. Income and Mining Taxes — We provide for federal, state and foreign income taxes currently payable, as well as those deferred, due to timing differences between reporting income and expenses for financial statement purposes versus tax purposes. Federal, state and foreign tax benefits are recorded as a reduction of income taxes, when applicable. We record deferred tax assets and liabilities for expected future tax consequences of temporary differences between the financial statement carrying amounts and the tax bases of those assets and liabilities, as well as operating loss and tax credit carryforwards, using enacted tax rates in effect in the years in which the differences are expected to reverse. We evaluate uncertain tax positions in a two-step process, whereby (i) it is determined whether it is more likely than not that the tax positions will be sustained based on the technical merits of the position and (ii) for those tax positions that meet the more-likely-than-not recognition threshold, the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement with the related tax authority would be recognized. We evaluate our ability to realize deferred tax assets by considering the sources and timing of taxable income, including the reversal of existing temporary differences, the ability to carryback tax attributes to prior periods, qualifying tax-planning strategies, and estimates of future taxable income exclusive of reversing temporary differences. In determining future taxable income, the Company’s assumptions include the amount of pre-tax operating income according to different state, federal and international taxing jurisdictions, the origination of future temporary differences, and the implementation of feasible and prudent tax-planning strategies. Should we determine that a portion of our deferred tax assets will not be realized, a valuation allowance is recorded in the period that such determination is made. When we determine, based on the existence of sufficient evidence, that more or less of the deferred tax assets are more likely than not to be realized, an adjustment to the valuation allowance is made in the period such a determination is made. We classify as income taxes mine license taxes incurred in the states of Alaska and Idaho, the net proceeds taxes incurred in Nevada, mining duties in Mexico, and resource taxes incurred in Quebec and Yukon, Canada.
Reclamation and Remediation Costs (Asset Retirement Obligations)	M. Reclamation and Remediation Costs (Asset Retirement Obligations) — At our operating properties, we record a liability for the present value of our estimated environmental remediation costs, and the related asset created with it, in the period in which the liability is incurred. The liability is accreted and the asset is depreciated over the life of the related assets. Adjustments for changes resulting from the passage of time and changes to either the timing or amount of the original present value estimate underlying the obligation are made in the period incurred. At our non-operating properties, we accrue costs associated with environmental remediation obligations when it is probable that such costs will be incurred and they are reasonably estimable. Accruals for estimated losses from environmental remediation obligations have historically been recognized no later than completion of the remediation feasibility study for such facility and are charged to current earnings under provision for closed operations and environmental matters. Costs of future expenditures for environmental remediation are not discounted to their present value unless subject to a contractually obligated fixed payment schedule. Such costs are based on management’s current estimate of amounts to be incurred when the remediation work is performed, within current laws and regulations. Future closure, reclamation and environmental-related expenditures are difficult to estimate in many circumstances, due to the early stage nature of investigations, uncertainties associated with defining the nature and extent of environmental contamination, the application of laws and regulations by regulatory authorities, and changes in reclamation or remediation technology. We periodically review accrued liabilities for such reclamation and remediation costs as evidence becomes available indicating that our liabilities have potentially changed. Changes in estimates at our non-operating properties are reflected in current period net income (loss).
Revenue Recognition and Trade Accounts Receivable	N. Revenue Recognition and Trade Accounts Receivable — Sales of all metals products sold directly to customers, including by-product metals, are recorded as revenues and accounts receivable upon completion of the performance obligations and transfer of control of the product to the customer. For sales of metals from refined doré, the performance obligation is met, the transaction price is known, and revenue is recognized at the time of transfer of control of the agreed-upon metal quantities to the customer by the refiner. For sales of unrefined doré and carbon material, the performance obligation is met, the transaction price is known, and revenue is recognized at the time of transfer of title and control of the doré or carbon containing the agreed-upon metal quantities to the customer. For concentrate sales, the performance obligation is met, the transaction price can be reasonably estimated, and revenue is recognized generally at the time of shipment at estimated forward prices for the anticipated month of settlement. Due to the time elapsed from shipment to the customer and the final settlement with the customer, we must estimate the prices at which sales of our concentrates will be settled. Previously recorded sales and accounts receivable are adjusted to estimated settlement metals prices until final settlement by the customer. As discussed in P. Risk Management Contracts below, we seek to mitigate this exposure by using financially-settled forward contracts for some of the metals contained in our concentrate shipments. Refining, selling and shipping costs related to sales of doré, metals from doré, and carbon are recorded to cost of sales and other direct production costs as incurred. Sales and accounts receivable for concentrate shipments are recorded net of charges by the customers for treatment, refining, smelting losses, and other charges negotiated by us with the customers. Charges are estimated by us upon shipment of concentrates based on contractual terms, and actual charges typically do not vary materially from our estimates. Costs charged by customers include fixed costs per ton of concentrate, and price escalators which allow the customers to participate in the increase of lead and zinc prices above a negotiated baseline. The Company's wholly owned subsidiary Elsa Reclamation and Development Company Ltd. ("ERDC"), generates revenue from performing environmental remediation services for the Crown-Indigenous Relations and Northern Affairs Canada ("CIRNAC"), a department of the Federal Government of Canada. ERDC and CIRNAC agree on annual work plans, which detail the scope of activities to be completed. Based on the work plan, the performance obligations to be met and the transaction price is known. Revenue is recognized on a monthly basis, as the required environmental remediation services performance obligations are completed and CIRNAC approves the activities performed. Modification to the scope of work would be agreed to separately with CIRNAC as no work outside of the work plan is reimbursable.
Foreign Currency	O. Foreign Currency — The functional currency for our operations located in the U.S., Mexico and Canada is the U.S. dollar (“USD”) for all periods presented. Accordingly, for Casa Berardi and Keno Hill in Canada and San Sebastian in Mexico, we have translated our monetary assets and liabilities at the period-end exchange rate, and non-monetary assets and liabilities at historical rates, with income and expenses translated at the average exchange rate for the current period. All translation gains and losses have been included in the current period net income (loss). Expenses incurred at our foreign operations and denominated in CAD and MXN expose us to exchange rate fluctuations between those currencies and the USD. As discussed in P. Risk Management Contracts below, we seek to mitigate this exposure by using financially-settled forward contracts to sell CAD.
Risk Management Contracts	P. Risk Management Contracts — We use derivative financial instruments as part of an overall risk-management strategy as a means of managing exposure to changes in metals prices and exchange rate fluctuations between the USD and CAD. We do not hold or issue derivative financial instruments for speculative trading purposes. We measure derivative contracts as assets or liabilities based on their fair value. Amounts recognized for the fair value of derivative asset and liability positions with the same counterparty and which would be settled on a net basis are offset against each other on our consolidated balance sheets. Gains or losses resulting from changes in the fair value of derivatives in each period are recorded either in current earnings or other comprehensive income (“OCI”), depending on the use of the derivative, whether it qualifies for hedge accounting and whether that hedge is effective. Amounts deferred in OCI are reclassified to sales of products (for metals price-related contracts) or cost of sales and other direct production costs (for foreign currency-related contracts). Ineffective portions of any change in fair value of a derivative are recorded in current period other operating income (expense). For derivatives qualifying as hedges, when the hedged items are sold, extinguished or terminated, or it is determined the hedged transactions are no longer likely to occur, gains or losses on the derivatives are reclassified from OCI to current earnings. As of December 31, 2024 and 2023, certain of our foreign currency-related forward contracts and metals prices hedges qualified for hedge accounting, with unrealized gains and loss related to the effective portion of the contracts included in OCI.
Stock Based Compensation	Q. Stock-Based Compensation — The fair values of equity instruments granted to employees that have vesting periods are expensed over the vesting periods on a straight-line basis. The fair values of instruments having no vesting period are expensed when granted. Stock-based compensation expense is recorded among general and administrative expenses, exploration and pre-development and cost of sales and other direct production costs.
Basic and Diluted Income (Loss) Per Common Share	R. Basic and Diluted Income (Loss) Per Common Share — We calculate basic income (loss) per share on the basis of the weighted average number of shares of common stock outstanding during the period. Diluted income per share is calculated using the weighted average number of shares of common stock outstanding during the period plus the effect of potential dilutive common shares during the period using the treasury stock and if-converted methods.
Comprehensive Income (Loss)	S. Comprehensive Income (Loss) — In addition to net income (loss), comprehensive income (loss) includes certain changes in equity during a period, such as adjustments to minimum pension liabilities, adjustments to recognize the over-funded or under-funded status of our defined benefit pension plans, and the change in fair value of derivative contracts designated as hedge transactions, net of tax, if applicable.
Reclassifications	T. Reclassifications — Certain amounts in prior years have been reclassified to conform with the 2024 presentation.
New Accounting Pronouncements	U. New Accounting Pronouncements — Accounting Standards Updates that Became Effective in the Current Period In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, amending reportable segment disclosure requirements to include disclosure of incremental segment information on an annual and interim basis. Among the disclosure enhancements are new disclosures regarding significant segment expenses that are regularly provided to the chief operating decision-maker and included within each reported measure of segment profit or loss, as well as other segment items bridging segment revenue to each reported measure of segment profit or loss. The amendments in ASU 2023-07 are effective for fiscal years beginning after December 15, 2023, and for interim periods within fiscal years beginning after December 15, 2024, and are applied retrospectively. We retrospectively adopted the segment disclosures required under these amended in the year ended December 31, 2024 consolidated financial statements, with no changes to our previously disclosed reportable segments. Accounting Standards Updates to Become Effective in Future Periods In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvement to Income Tax Disclosures, amending income tax disclosure requirements for the effective tax rate reconciliation and income taxes paid. The amendments in ASU 2023-09 are effective for fiscal years beginning after December 15, 2024 and are applied prospectively. Early adoption and retrospective application of the amendments are permitted. The amendments apply to income tax disclosures only, and we will comply with the additional disclosure requirements required by the standard. In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income (Topic 220): Expense Disaggregation Disclosures, which includes amendments to require the disclosure of certain specific costs and expenses that are included in a relevant expense caption on the face of the income statement. Specific costs and expenses that would be required to be disclosed include: purchases of inventory, employee compensation, depreciation and intangible asset amortization. Additionally, a qualitative description of other items is required, equal to the difference between the relevant expense caption and the separately disclosed specific costs. The amendments in ASU 2024-03 are effective for fiscal years beginning after December 15, 2026, and for interim periods beginning after December 15, 2027, and are applied either prospectively or retrospectively at the option of the Company. We are evaluating the impact of the amendments on our consolidated financial statements and disclosures.

Note 4 - Business Segments, S_2

Note 4 - Business Segments, Sales of Products and Significant Customers (Tables)	12 Months Ended
	Dec. 31, 2024
Segment Reporting [Abstract]
Schedule of Information About Reportable Segments	The tables below present information about our reportable segments as of and for the years ended December 31, 2024, 2023 and 2022 (in thousands). Year ended December 31, 2024 Greens Creek Lucky Friday Keno Hill Casa Berardi Other Total Metal sales $ 421,574 $ 203,154 $ 74,962 $ 209,679 $ — $ 909,369 Environmental remediation services — — — — 20,556 20,556 Intersegment sales — — 3,834 — — 3,834 Reconciliation of sales 421,574 203,154 78,796 209,679 20,556 933,759 Elimination of intersegment sales — — ( 3,834 ) — — ( 3,834 ) Total consolidated sales 929,925 Cost of sales and other direct production costs Salaries, wages and other benefits 69,990 52,879 29,658 49,345 206 202,078 Contractors 6,135 14,154 22,960 23,982 19,696 86,927 Materials and consumables 93,223 39,957 28,648 55,867 625 218,320 Product inventory change 5,858 ( 2,628 ) ( 8,902 ) ( 3,269 ) — ( 8,941 ) Other direct production costs 39,471 1,281 13,216 24,854 — 78,822 Transfer to ramp-up and suspension costs (a) — ( 2,207 ) ( 26,754 ) — — ( 28,961 ) Depreciation, depletion and amortization 53,450 41,049 16,136 72,835 — 183,470 Gross profit (loss) $ 153,447 $ 58,669 $ — $ ( 13,935 ) $ 29 $ 198,210 Other operating expenses (b) 91,934 Income from operations 106,276 Other Expense: Interest expense ( 49,834 ) Fair value adjustments, net ( 2,204 ) Foreign exchange gain, net 7,552 Other income 4,426 Income before income and mining taxes $ 66,216 Capital additions $ 47,795 $ 49,592 $ 54,869 $ 60,704 $ 1,532 $ 214,492 Identifiable assets 564,334 587,945 413,982 687,080 727,719 2,981,060 (a) Total cost of sales in excess of sales value are transferred to ramp-up and suspension costs. (b) Other operating expense items include general and administrative, exploration and pre-development, ramp-up and suspension costs, provision for closed operations and environmental matters, write-down of property, plant and equipment and other operating (income) expense, net. Year ended December 31, 2023 Greens Creek Lucky Friday Keno Hill Casa Berardi Other Total Metal sales $ 384,504 $ 116,284 $ 35,518 $ 177,678 $ 960 $ 714,944 Environmental remediation services — — — — 5,283 5,283 Intersegment sales — — — — — — Reconciliation of sales 384,504 116,284 35,518 177,678 6,243 720,227 Elimination of intersegment sales - Total consolidated sales 720,227 Cost of sales and other direct production costs Salaries, wages and employee benefits 68,183 43,142 21,569 51,201 3,029 187,124 Contractors 5,917 8,681 10,472 31,912 1,125 58,107 Materials and consumables 89,850 27,030 18,018 48,130 1,606 184,634 Product inventory change 4,266 8,014 ( 1,163 ) 2,913 269 14,299 Other direct production costs 37,684 ( 1,460 ) 12,138 23,376 1,207 72,945 Transfer to ramp-up and suspension costs (a) - ( 25,548 ) ( 29,793 ) ( 2,228 ) ( 1,036 ) ( 58,605 ) Depreciation, depletion and amortization 53,995 24,325 4,277 66,037 140 148,774 Gross profit (loss) $ 124,609 $ 32,100 $ — $ ( 43,663 ) $ ( 97 ) $ 112,949 Other operating expenses (b) 157,623 Loss from operations ( 44,674 ) Other Expense: Interest expense ( 43,319 ) Fair value adjustments, net 2,925 Foreign exchange loss, net ( 3,810 ) Other income 5,883 Loss before income and mining taxes $ ( 82,995 ) Capital additions $ 43,542 $ 65,337 $ 44,672 $ 70,056 $ 280 $ 223,887 Identifiable assets 569,369 578,110 362,986 683,035 817,604 3,011,104 (a) Total cost of sales in excess of sales value are transferred to ramp-up and suspension costs. (b) Other operating expense items include general and administrative, exploration and pre-development, ramp-up and suspension costs, provision for closed operations and environmental matters, write-down of property, plant and equipment and other operating (income) expense, net. Year ended December 31, 2022 Greens Creek Lucky Friday Keno Hill Casa Berardi Other Total Metal sales $ 335,062 $ 147,814 $ — $ 235,136 $ 420 $ 718,432 Environmental remediation services — — — — 473 473 Intersegment sales — — — — — — Reconciliation of sales 335,062 147,814 — 235,136 893 718,905 Elimination of intersegment sales — Total consolidated sales 718,905 Cost of sales and other direct production costs Salaries, wages and employee benefits 64,142 42,155 863 58,678 6,186 172,024 Contractors 7,550 11,384 482 52,715 3,835 75,966 Materials and consumables 81,538 29,868 459 54,896 5,135 171,896 Product inventory change ( 5,885 ) ( 2,302 ) - ( 186 ) ( 9,554 ) ( 17,927 ) Other direct production costs 36,462 1,789 496 21,833 ( 1,428 ) 59,152 Transfer to ramp-up and suspension costs (a) - - ( 2,300 ) - - ( 2,300 ) Depreciation, depletion and amortization 48,911 33,704 - 60,962 361 143,938 Gross profit (loss) $ 102,344 $ 31,216 $ — $ ( 13,762 ) $ ( 3,642 ) $ 116,156 Other operating expenses (b) 128,594 Loss from operations ( 12,438 ) Other Expense: Interest expense ( 42,793 ) Fair value adjustments, net ( 4,723 ) Foreign exchange gain, net 7,211 Other income 7,829 Loss before income and mining taxes $ ( 44,914 ) Capital additions $ 36,898 $ 50,992 $ 19,725 $ 39,667 $ 2,096 $ 149,378 Identifiable assets 582,687 571,510 276,096 681,631 815,248 2,927,172 (a) Total cost of sales in excess of sales value are transferred to ramp-up and suspension costs. (b) Other operating expense items include general and administrative, exploration and pre-development, ramp-up and suspension costs, provision for closed operations and environmental matters, write-down of property, plant and equipment and other operating (income) expense, net.
Schedule of Long-lived Assets by Geographic Area	The following are our long-lived assets by geographic area as of December 31, 2024 and 2023 (in thousands): 2024 2023 United States $ 1,684,890 $ 1,698,285 Canada 1,001,612 960,109 Mexico 7,617 7,856 Total long-lived assets $ 2,694,119 $ 2,666,250
Schedule of Sales Contributed by Each Segment	Sales of metal concentrates and metal products are made principally to custom smelters, third-party processors and metal traders. The percentage of metal sales contributed by each segment is reflected in the following table: Year Ended December 31, 2024 2023 2022 Greens Creek 46.4 % 53.7 % 46.6 % Lucky Friday 22.3 % 16.3 % 20.6 % Keno Hill 8.2 % 5.0 % — Casa Berardi 23.1 % 24.9 % 32.7 % Other — 0.1 % 0.1 % 100 % 100 % 100 %
Schedule of Sales of Products by Metal	Total sales for the years ended December 31, 2024, 2023 and 2022 were as follows (in thousands): Year Ended December 31, 2024 2023 2022 Silver $ 413,980 $ 302,284 $ 265,054 Gold 318,256 274,613 298,910 Lead 87,223 72,726 83,384 Zinc 130,767 116,230 123,057 Copper 416 — — Less: Smelter and refining charges ( 41,273 ) ( 50,909 ) ( 51,973 ) Total metal sales 909,369 714,944 718,432 Environmental remediation services 20,556 5,283 473 Total sales $ 929,925 $ 720,227 $ 718,905
Schedule of Sales Information by Geographic Area	The following is metal sales information by geographic area based on the location of smelters and metal traders (for concentrate shipments) and the location of parent companies (for doré sales to metal traders) for the years ended December 31, 2024, 2023 and 2022 (in thousands): 2024 2023 2022 United States $ 41,079 $ 36,307 $ 21,938 Canada 457,423 375,092 406,600 Japan 44,561 52,744 51,375 Korea 181,372 127,590 107,828 China 183,644 103,534 136,514 Total, excluding gains/losses on forward contracts $ 908,079 $ 695,267 $ 724,255 Metal sales by significant product type for the years ended December 31, 2024, 2023 and 2022 were as follows (in thousands): Year Ended December 31, 2024 2023 2022 Doré and metals from doré - Greens Creek, Casa Berardi $ 238,124 $ 211,321 $ 255,608 Carbon - Casa Berardi 7,670 4,333 2,607 Silver concentrate - Greens Creek, Lucky Friday, Keno Hill 493,584 356,941 329,165 Zinc concentrate - Greens Creek, Lucky Friday, Keno Hill 111,101 80,274 109,177 Precious metals concentrate - Greens Creek 57,600 42,398 27,698 Total, excluding gains/losses on forward contracts $ 908,079 $ 695,267 $ 724,255
Schedule of Sales from Continuing Operations to Significant Metals Customers	Metal sales from continuing operations to significant metals customers as a percentage of total sales were as follows for the years ended December 31, 2024, 2023 and 2022: Year Ended December 31, 2024 2023 2022 Customer A - Casa Berardi 17.2 % 24.2 % 35.4 % Customer B - Greens Creek, Lucky Friday 28.1 % 11.8 % 23.9 % Customer C - Greens Creek 18.5 % 15.5 % 11.3 % Customer D - Greens Creek, Keno Hill 15.9 % 9.5 % 6.9 %
Summary of Trade Accounts Receivable	Trade accounts receivable balances with significant metals customers as of December 31, 2024, 2023 and 2022 were as follows: 2024 2023 2022 Customer B 46.1 % 22.2 % 57.5 % Customer C 16.8 % 3.3 % 3.1 % Customer D 28.2 % — 2.1 % Customer E 7.2 % 24.2 % 3.2 % Customer F — — 15.9 % Customer G — — 11.8 % Customer H — 34.8 % —

Note 5 - Environmental and Re_2

Note 5 - Environmental and Reclamation Activities (Tables)	12 Months Ended
	Dec. 31, 2024
Environmental and Reclamation Activities [Abstract]
Schedule of Reclamation and Closure Costs Liabilities	The liabilities accrued for our reclamation and closure costs at December 31, 2024 and 2023 were as follows (in thousands): 2024 2023 Operating properties: Greens Creek $ 38,737 $ 39,893 Lucky Friday 10,982 12,022 Keno Hill 3,500 3,360 Casa Berardi 17,005 11,157 Non-operating properties: Nevada 33,700 30,539 San Sebastian 1,509 2,061 Troy mine 3,385 5,238 Johnny M 10,148 10,148 All other sites 5,944 6,039 Total 124,910 120,457 Reclamation and closure costs, current ( 13,748 ) ( 9,660 ) Reclamation and closure costs, non-current $ 111,162 $ 110,797
Schedule of Reclamation and Closure Costs Activities	The activity in our accrued reclamation and closure cost liability for the years ended December 31, 2024, 2023 and 2022 was as follows (in thousands): Balance at January 1, 2022 $ 113,231 Accruals for estimated costs 2,874 Accretion expense 5,995 Revision of estimated cash flows due to changes in reclamation plans 452 Payment of reclamation obligations ( 5,553 ) Balance at December 31, 2022 116,999 Accruals for estimated costs 2,952 Accretion expense 7,740 Revision of estimated cash flows due to changes in reclamation plans ( 29 ) Payment of reclamation obligations ( 7,205 ) Balance at December 31, 2023 120,457 Accruals for estimated costs ( 239 ) Accretion expense 5,806 Revision of estimated cash flows due to changes in reclamation plans 7,383 Payment of reclamation obligations ( 8,497 ) Balance at December 31, 2024 $ 124,910
Schedule of Change in Asset Retirement Obligation	2024 2023 Balance January 1 $ 99,067 $ 96,620 Changes in obligations due to changes in reclamation plans 5,226 ( 29 ) Accretion expense 5,806 7,740 Payment of asset retirement obligations ( 4,667 ) ( 5,264 ) Balance at December 31 $ 105,432 $ 99,067

Note 6 - Employee Benefit Pla_2

Note 6 - Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2024
Defined Benefit Plan [Abstract]
Schedule of changes in the plans' benefit obligations and fair value of assets	The following tables provide a reconciliation of the changes in the plans’ benefit obligations and fair value of assets over the two-year period ended December 31, 2024, and the funded status as of December 31, 2024 and 2023 (in thousands): Pension Benefits 2024 2023 Change in benefit obligation: Benefit obligation at beginning of year $ 149,426 $ 148,143 Service cost 3,659 3,794 Interest cost 8,302 7,974 Change due to mortality change 2,430 643 Change due to discount rate change 10,819 ( 3,635 ) Actuarial return 1,714 401 Benefits paid ( 8,346 ) ( 7,894 ) Benefit obligation at end of year 168,004 149,426 Change in fair value of plan assets: Fair value of plan assets at beginning of year 176,958 175,159 Actual return on plan assets 15,722 7,937 Employer contributions — 1,756 Benefits paid ( 8,346 ) ( 7,894 ) Fair value of plan assets at end of year 184,334 176,958 Funded status at end of year $ 16,330 $ 27,532
Schedule of the amounts recognized in the consolidated balance sheets	The following table provides the amounts recognized in the consolidated balance sheets as of December 31, 2024 and 2023 (in thousands): Pension Benefits 2024 2023 Non-current assets: Accrued benefit asset $ 19,879 $ 28,399 Pension liability Accrued current benefit liability ( 1,556 ) ( 867 ) Accrued benefit liability ( 1,993 ) — Accumulated other comprehensive loss 19,489 8,031 Net amount recognized $ 35,819 $ 35,563
Schedule of assumptions related to benefit obligation and prepaid benefit costs	The benefit obligation and prepaid benefit costs were calculated by applying the following weighted average assumptions: Pension Benefits 2024 2023 Discount rate: net periodic pension cost 5.14 % 5.77 % Discount rate: projected benefit obligation 5.14 % 5.77 % Expected rate of return on plan assets 7.25 % 7.25 % Rate of compensation increase: net periodic pension cost 3 % 5 %/ 2 % (1) Rate of compensation increase: projected benefit obligation 3 % 4 %/ 3 %/ 2 % (2) (1) 5% for 2024 and 2% per year thereafter . (2) 4% for 2024, 3% for 2025 and 2% per year thereafter .
Schedule of net periodic pension cost	Net periodic pension cost for the plans consisted of the following in 2024, 2023, and 2022 (in thousands): Pension Benefits 2024 2023 2022 Service cost $ 3,659 $ 3,794 $ 6,262 Interest cost 8,302 7,974 5,476 Expected return on plan assets ( 12,544 ) ( 12,428 ) ( 13,452 ) Amortization of prior service cost 265 500 511 Amortization of net loss (gain) 61 ( 188 ) 2,049 Net periodic pension (benefit) cost $ ( 257 ) $ ( 348 ) $ 846
Schedule of allocation of assets	Target Maximum Large cap U.S. equities 17 % 20 % Small cap U.S. equities 8 % 10 % Non-U.S. equities 25 % 30 % U.S. Fixed income 18 % 23 % Emerging markets debt 5 % 8 % Real estate 15 % 18 % Absolute return 5 % 7 % Company stock/Real return 7 % 13 %
Schedule of fair values of plan by asset category	The fair values by asset category in each pension plan, along with their hierarchy levels, are as follows as of December 31, 2024 (in thousands): Hecla plans Lucky Friday Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Investments measured at fair value Interest-bearing cash $ 2,699 $ — $ — $ 2,699 $ 123 $ — $ — $ 123 Common stock 18,874 — — 18,874 2,932 — — 2,932 Mutual funds 87,823 — — 87,823 13,016 — — 13,016 Total investments in the fair value hierarchy 109,396 — — 109,396 16,071 — — 16,071 Investments measured at net asset value Real estate funds — — — 16,318 — — — 3,698 Common collective funds — — — 31,688 — — — 7,163 Total investments measured at net asset value — — — 48,006 — — — 10,861 Total fair value $ 109,396 $ — $ — $ 157,402 $ 16,071 $ — $ — $ 26,932 Hecla plans Lucky Friday Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Investments measured at fair value Interest-bearing cash $ 525 $ — $ — $ 525 $ 117 $ — $ — $ 117 Common stock 19,933 — — 19,933 2,872 — — 2,872 Mutual funds 83,504 — — 83,504 12,792 — — 12,792 Total investments in the fair value hierarchy 103,962 — — 103,962 15,781 — — 15,781 Investments measured at net asset value Real estate funds — — — 18,029 — — — 4,173 Common collective funds — — — 28,386 — — — 6,627 Total investments measured at net asset value — — — 46,415 — — — 10,800 Total fair value $ 103,962 $ — $ — $ 150,377 $ 15,781 $ — $ — $ 26,581
Schedule of estimates of future benefit payments	The following are estimates of future benefit payments, which reflect expected future service as appropriate, related to our pension plans (in thousands): Year Ending December 31, Pension 2025 $ 10,061 2026 10,171 2027 10,158 2028 10,427 2029 10,610 Years 2030-2033 53,433
Schedule of indication of whether pension plans had accumulated benefit obligations (ABO) in excess of plan assets, or plan assets exceeded ABO	The following table indicates whether our pension plans had accumulated benefit obligations (“ABO”) in excess of plan assets, or plan assets exceeded ABO. During 2024 two of our plans had plan assets in excess of the ABO and one did not. During 2023 all three of our plans assets exceeded the ABO (in thousands). 2024 2024 2023 Plan Assets Exceed ABO ABO Exceed Plan Assets Plan Assets Exceed ABO Projected benefit obligation $ 48,251 $ 119,753 $ 149,426 Accumulated benefit obligation $ 47,262 $ 116,148 $ 146,336 Fair value of plan assets $ 66,573 $ 117,761 $ 176,958
Schedule of amounts included in "Accumulated other comprehensive loss, net"	For the pension plans, the following amounts are included in “Accumulated other comprehensive income, net” on our balance sheet as of December 31, 2024, that have not yet been recognized as components of net periodic benefit cost (in thousands): Pension Unamortized net loss $ 19,185 Unamortized prior service cost 304

Note 7 - Income and Mining Ta_2

Note 7 - Income and Mining Taxes (Tables)	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Schedule of Components of Income and Mining Tax Benefit (Provision)	Major components of our income and mining tax (provision) benefit for the years ended December 31, 2024, 2023 and 2022 are as follows (in thousands): 2024 2023 2022 Current: Domestic $ ( 6,758 ) $ ( 3,846 ) $ ( 3,915 ) Foreign ( 3,968 ) ( 3,322 ) ( 5,119 ) Total current income and mining tax (provision) benefit ( 10,726 ) ( 7,168 ) ( 9,034 ) Deferred: Domestic ( 30,435 ) ( 17,058 ) 2,064 Foreign 10,747 23,004 14,536 Total deferred income and mining tax (provision) benefit ( 19,688 ) 5,946 16,600 Total income and mining tax (provision) benefit $ ( 30,414 ) $ ( 1,222 ) $ 7,566
Schedule of Domestic and Foreign Components of Income (Loss) Before Income and Mining Taxes	Domestic and foreign components of income (loss) before income and mining taxes for the years ended December 31, 2024, 2023 and 2022 are as follows (in thousands): 2024 2023 2022 Domestic $ 121,273 $ 43,745 $ ( 6,343 ) Foreign ( 55,057 ) ( 126,740 ) ( 38,571 ) Total $ 66,216 $ ( 82,995 ) $ ( 44,914 )
Schedule of Effective Income Tax Reconciliation	The annual tax (provision) benefit is different from the amount that would be provided by applying the statutory federal income tax rate to our pretax income (loss). The reasons for the difference are (in thousands): 2024 2023 2022 Computed “statutory” benefit (provision) $ ( 13,905 ) 22 % $ 17,429 21 % $ 9,432 21 % Percentage depletion 9,895 ( 15 ) 4,205 5 8,542 19 Change in valuation allowance ( 14,195 ) 21 ( 20,016 ) ( 24 ) ( 8,113 ) ( 18 ) State taxes, net of federal tax benefit ( 4,823 ) 7 ( 2,731 ) ( 3 ) ( 158 ) — Foreign currency remeasurement 590 ( 1 ) ( 4,155 ) ( 5 ) 4,559 10 Rate differential on foreign earnings 3,293 ( 5 ) 6,553 8 1,515 3 Compensation ( 2,684 ) 4 ( 1,636 ) ( 2 ) 173 — Mining and other taxes ( 7,661 ) 12 ( 1,359 ) ( 2 ) ( 6,609 ) ( 15 ) Other ( 924 ) 1 488 1 ( 1,775 ) ( 3 ) Total (provision) benefit $ ( 30,414 ) 46 % $ ( 1,222 ) ( 1 )% $ 7,566 17 %
Schedule of Components of Net Deferred Tax Assets and Liabilities	The individual components of our net deferred tax assets and liabilities are reflected in the table below (in thousands). December 31, 2024 2023 Deferred tax assets: Accrued reclamation costs $ 34,538 $ 33,451 Deferred exploration 21,591 22,341 Foreign net operating losses 50,763 52,091 Domestic net operating losses 191,583 214,137 Foreign exchange loss 29,292 22,247 Foreign tax credit carryforward 1,576 2,026 Miscellaneous 38,443 35,060 Total deferred tax assets 367,786 381,353 Valuation allowance ( 115,105 ) ( 100,910 ) Total deferred tax assets 252,681 280,443 Deferred tax liabilities: Miscellaneous ( 8,648 ) ( 12,950 ) Properties, plants and equipment ( 354,299 ) ( 369,445 ) Total deferred tax liabilities ( 362,947 ) ( 382,395 ) Net deferred tax liability $ ( 110,266 ) $ ( 101,952 )
Schedule of Changes in Valuation Allowance	The changes in the valuation allowance for the years ended December 31, 2024, 2023 and 2022, are as follows (in thousands): 2024 2023 2022 Balance at beginning of year $ ( 100,910 ) $ ( 72,856 ) $ ( 39,152 ) Valuation allowance on deferred tax assets acquired with the ATAC (2023) and Alexco (2022) acquisitions — ( 8,077 ) ( 25,591 ) Increase related to non-recognition of deferred tax assets due to uncertainty of recovery and increase related to non-utilization of net operating loss carryforwards ( 16,965 ) ( 21,114 ) ( 13,256 ) Decrease related to either or a combination of (i) utilization, (ii) release due to future benefit, and (iii) expiration of deferred tax assets as applicable 2,770 1,137 5,143 Balance at end of year $ ( 115,105 ) $ ( 100,910 ) $ ( 72,856 )

Note 8 - Income (Loss) per Co_2

Note 8 - Income (Loss) per Common Share (Tables)	12 Months Ended
	Dec. 31, 2024
Notes To Financial Statements [Abstract]
Schedule of Earnings Per Share Basic and Diluted	The following table represents net income (loss) per common share – basic and diluted (in thousands, except income (loss) per share): Year ended December 31, 2024 2023 2022 Numerator Net income (loss) $ 35,802 $ ( 84,217 ) $ ( 37,348 ) Preferred stock dividends ( 552 ) ( 552 ) ( 552 ) Net income (loss) applicable to common stockholders $ 35,250 $ ( 84,769 ) $ ( 37,900 ) Denominator Basic weighted average common shares 620,848 605,668 557,344 Dilutive units 1,687 — — Diluted weighted average common shares 622,535 605,668 557,344 Basic income (loss) per common share $ 0.06 $ ( 0.14 ) $ ( 0.07 ) Diluted income (loss) per common share $ 0.06 $ ( 0.14 ) $ ( 0.07 )

Note 9 - Debt, Credit Facilit_2

Note 9 - Debt, Credit Facility and Leases (Tables)	12 Months Ended
	Dec. 31, 2024
Line of Credit Facility [Abstract]
Schedule of Long-term Debt	The following tables summarize our current and long-term debt balances, including principal amounts outstanding under the Credit Agreement, as of December 31, 2024 and 2023 (in thousands): December 31, 2024 Senior Notes IQ Notes Credit Agreement Total Principal $ 475,000 $ 33,525 $ 23,000 $ 531,525 Unamortized discount/premium and issuance costs ( 2,816 ) 92 — ( 2,724 ) Total debt 472,184 33,617 23,000 528,801 Less: current debt — ( 33,617 ) — ( 33,617 ) Long-term debt $ 472,184 $ — $ 23,000 $ 495,184 December 31, 2023 Senior Notes IQ Notes Credit Agreement Total Principal $ 475,000 $ 36,473 $ 128,000 $ 639,473 Unamortized discount/premium and issuance costs ( 3,730 ) 257 — ( 3,473 ) Long-term debt $ 471,270 $ 36,730 $ 128,000 $ 636,000
Scheduled of Annual Future Payments, Including Interest	The following table summarizes the scheduled annual future payments, including interest, for the Senior Notes and IQ Notes as of December 31, 2024 (in thousands). The amounts for the IQ Notes are stated in USD based on the USD/CAD exchange rate as of December 31, 2024. Senior Notes IQ Notes 2025 $ 34,438 $ 35,709 2026 34,438 — 2027 34,437 — 2028 479,305 — Total $ 582,618 $ 35,709
Schedule of Annual Maturities of Finance Lease Commitments, Including Interest	At December 31, 2024, the annual maturities of finance lease commitments, including interest, were (in thousands): Twelve-month period ending December 31, 2025 $ 9,576 2026 7,849 2027 3,962 2028 1,099 2029 1,099 More than 5 years 550 Total 24,135 Less: effect of interest ( 2,223 ) Net finance lease obligation $ 21,912
Schedule of Annual Maturities of Undiscounted Operating Lease Payments	At December 31, 2024, the annual maturities of undiscounted operating lease payments, including assumed extensions beyond the current lease terms, were (in thousands): Twelve-month period ending December 31, 2025 $ 1,299 2026 1,299 2027 1,192 2028 1,054 2029 990 More than 5 years 4,916 Total 10,750 Less: effect of discounting ( 2,755 ) Operating lease liability $ 7,995

Note 10 - Derivative Instrume_2

Note 10 - Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2024
Table Text Block [Abstract]
Schedule of Foreign Exchange Contracts, Statement of Financial Position	As of December 31, 2024 and 2023, we recorded the following balances for the fair value of the contracts (in millions): December 31, Balance sheet line item: 2024 2023 Other current assets $ — $ 2.7 Other non-current assets — 2.0 Current derivative liabilities ( 8.2 ) ( 1.1 ) Non-current derivative liabilities ( 2.0 ) ( 0.4 )
Schedule of Notional Amounts of Outstanding Derivative Positions	The following tables summarize the quantities of metals committed under forward sales contracts at December 31, 2024 and 2023: December 31, 2024 Ounces/pounds under contract (in 000's) Average price per ounce/pound Silver Gold Zinc Lead Silver Gold Zinc Lead (ounces) (ounces) (pounds) (pounds) (ounces) (ounces) (pounds) (pounds) Contracts on provisional sales 2025 settlements 1,535 2 20,834 14,661 $ 31.46 $ 2,673 $ 1.40 $ 0.97 Contracts on forecasted sales 2025 settlements — — 59,194 47,840 N/A N/A $ 1.39 $ 0.99 2026 settlements — — 6,283 52,911 N/A N/A $ 1.41 $ 1.03 December 31, 2023 Ounces/pounds under contract (in 000's) Average price per ounce/pound Silver Gold Zinc Lead Silver Gold Zinc Lead (ounces) (ounces) (pounds) (pounds) (ounces) (ounces) (pounds) (pounds) Contracts on provisional sales 2024 settlements 735 3 441 15,542 $ 24.40 $ 2,045 $ 1.51 $ 1.00 Contracts on forecasted sales 2024 settlements — — — 56,713 N/A N/A N/A $ 0.98 2025 settlements — — — 49,273 N/A N/A N/A $ 0.98
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location	At December 31, 2024 and 2023, we recorded the following balances for the fair value of forward contracts held at that time (in millions): December 31, 2024 December 31, 2023 Balance sheet line item: Contracts in an asset position Contracts in a liability position Net asset (liability) Contracts in an asset position Contracts in a liability position Net asset (liability) Other current assets $ 11.5 $ — $ 11.5 $ 3.1 $ — $ 3.1 Other non-current assets 6.6 — 6.6 1.5 — 1.5 Current derivatives liability — — — — ( 0.1 ) ( 0.1 )

Note 11 - Fair Value Measuremen

Note 11 - Fair Value Measurement (Tables)	12 Months Ended
	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings	Fair value adjustments, net is comprised of the following (in thousands): Year Ended December 31, 2024 2023 2022 Loss (gain) on derivative contracts $ ( 5,907 ) $ 3,168 $ 844 Unrealized gain (loss) on investments in equity securities 3,703 ( 243 ) ( 5,632 ) Gain on disposition or exchange of investments — — 65 Total fair value adjustments, net $ ( 2,204 ) $ 2,925 $ ( 4,723 )
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The table below sets forth our assets and liabilities (in thousands) that were accounted for at fair value on a recurring basis and the fair value calculation input hierarchy level that we have determined applies to each asset and liability category. See Note 6 for information on the fair values of our defined benefit pension plan assets. Balance at Balance at Input Assets: Cash and cash equivalents: Money market funds and other bank deposits $ 26,868 $ 106,374 Level 1 Current and non-current investments: Equity securities 33,158 32,284 Level 1 Trade accounts receivable: Receivables from provisional concentrate sales 31,515 17,940 Level 2 Derivative contracts - other current assets and other non-current assets: Metal forward contracts 18,039 4,698 Level 2 Foreign exchange contracts — 4,657 Level 2 Restricted cash and cash equivalents balances: Certificates of deposit and other deposits 1,177 1,165 Level 1 Liabilities Derivative contracts - current and non-current derivative liabilities: Metal forward contracts $ — $ 40 Level 2 Foreign exchange contracts 10,176 1,508 Level 2

Note 12 - Stockholders' Equity

Note 12 - Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2024
Equity [Abstract]
Schedule of Stockholders' Equity Note, Warrants or Rights	Number of warrants Exercise price Expiration date 2,068,000 $ 8.02 April 2032
Share-Based Payment Arrangement, Performance Shares, Activity	Shares Weighted Average Unvested, January 1, 2022 874,422 $ 2.61 Granted 322,796 $ 3.78 Vested (1) ( 597,360 ) $ 0.31 Unvested, December 31, 2022 599,858 $ 5.54 Granted 336,096 $ 3.54 Canceled ( 109,727 ) $ 5.30 Vested (1) ( 205,425 ) $ 8.17 Unvested, December 31, 2023 620,802 $ 3.63 Granted 542,770 $ 3.32 Forfeited (2) ( 290,950 ) $ 3.78 Unvested, December 31, 2024 872,622 $ 3.39 (1) Vested on December 31 and distributed in February of the following year (2) The awards granted in 2022 did not meet the established performance criteria and accordingly were forfeited as unvested
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity	Shares Weighted Average Unvested, January 1, 2022 2,022,352 $ 3.97 Granted 1,256,532 $ 4.41 Canceled ( 177,801 ) $ 4.41 Vested ( 1,304,968 ) $ 3.97 Unvested, December 31, 2022 1,796,115 $ 4.23 Granted 1,316,120 $ 5.05 Canceled ( 336,060 ) $ 4.90 Vested ( 918,927 ) $ 5.05 Unvested, December 31, 2023 1,857,248 $ 4.28 Granted 1,538,407 $ 5.17 Canceled ( 130,450 ) $ 5.00 Vested ( 908,132 ) $ 4.45 Unvested, December 31, 2024 2,357,073 $ 4.76

Note 13 - Accumulated Other C_2

Note 13 - Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Accumulated other comprehensive income (loss), net	The following table lists the beginning balance, yearly activity and ending balance of each component of “Accumulated other comprehensive income (loss), net” (in thousands): Changes in fair value of derivative contracts designated as hedge transactions Adjustments Total Balance January 1, 2022 $ ( 4,675 ) $ ( 23,781 ) $ ( 28,456 ) 2022 change 13,837 17,067 30,904 Balance December 31, 2022 9,162 ( 6,714 ) 2,448 2023 change 4,546 ( 1,157 ) 3,389 Balance December 31, 2023 13,708 ( 7,871 ) 5,837 2024 change ( 7,714 ) ( 8,389 ) ( 16,103 ) Balance December 31, 2024 $ 5,994 $ ( 16,260 ) $ ( 10,266 ) The amounts above are net of the income tax effect of such balances and activity as summarized in the following table (in thousands): Changes in fair value of derivative contracts designated as hedge transactions Adjustments Total Balance January 1, 2022 $ 4,689 $ 6,196 $ 10,885 2022 change ( 5,233 ) ( 6,454 ) ( 11,687 ) Balance December 31, 2022 ( 544 ) ( 258 ) ( 802 ) 2023 change ( 1,683 ) 428 ( 1,255 ) Balance December 31, 2023 ( 2,227 ) 170 ( 2,057 ) 2024 change 2,822 3,069 5,891 Balance December 31, 2024 $ 595 $ 3,239 $ 3,834

Note 14 - Product Inventories (

Note 14 - Product Inventories (Tables)	12 Months Ended
	Dec. 31, 2024
Inventory Disclosure [Abstract]
Schedule of Our Major Components of Product Inventories	Our major components of product inventories are (in thousands): 2024 2023 Concentrates $ 15,030 $ 13,328 Stockpiled ore 13,168 7,168 In-process 6,764 8,327 Total product inventories $ 34,962 $ 28,823

Note 15 - Properties, Plants,_2

Note 15 - Properties, Plants, Equipment and Mine Development, net, and Lease Commitments (Tables)	12 Months Ended
	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
Schedule of properties, plants, equipment, and mine development	December 31, 2024 2023 Mining properties, including asset retirement obligations $ 958,858 $ 911,018 Development costs 671,741 630,391 Plants and equipment 1,805,236 1,666,577 Land 35,680 35,112 Mineral interests 1,166,045 1,164,390 Construction in progress 66,566 121,022 4,704,126 4,528,510 Less accumulated depreciation, depletion and amortization 2,010,007 1,862,260 Net carrying value $ 2,694,119 $ 2,666,250

Note 2 - Summary of Significa_3

Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Restricted cash and cash equivalents	$ 1,177	$ 1,165	$ 1,164
Capitalized Drilling Costs	$ 12,400	$ 17,600	$ 11,200
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	2 years
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	14 years

Note -Revision of Previously Is

Note -Revision of Previously Issued Financial Statements for Immaterial Misstatements (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Depreciation, depletion and amortization	$ 190,471	$ 163,672	$ 145,147

Note -Revision of Previously _2

Note -Revision of Previously Issued Financial Statements for Immaterial Misstatements - Schedule of Prior Period Adjustments (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Inventories: Concentrates, dore, and stockpiled ore	$ 34,962	$ 28,823
Total current assets	214,152	260,262
Properties, plants, equipment and mine development, net	2,694,119	2,666,250
Total assets	2,981,060	3,011,104	$ 2,927,172
Accrued taxes	6,312	3,501
Total current liabilities	197,838	157,460
Deferred tax liability	110,266	104,835
Total liabilities	941,546	1,043,000
Accumulated deficit	(493,529)	(503,861)
Total shareholders' equity	2,039,514	1,968,104	1,978,967	$ 1,760,787
Total liabilities and shareholders' equity	2,981,060	3,011,104
Cost of sales and other direct production costs	548,245	458,504	458,811
Depreciation, depletion and amortization	183,470	148,774	143,938
Total cost of sales	731,715	607,278	602,749
Gross profit	198,210	112,949	116,156
Income from operations	106,276	(44,674)	(12,438)
Loss before income and mining taxes	66,216	(82,995)	(44,914)
Income and mining tax (provision) benefit	30,414	1,222	(7,566)
Net Income (Loss)	35,802	(84,217)	(37,348)
Loss applicable to common shareholders	35,250	(84,769)	(37,900)
Comprehensive loss	$ 19,699	$ (80,828)	$ (6,444)
Basic income (loss) common share after preferred dividends	$ 0.06	$ (0.14)	$ (0.07)
Diluted income (loss) per common share after preferred dividends	$ 0.06	$ (0.14)	$ (0.07)
Depreciation, depletion and amortization	$ 190,471	$ 163,672	$ 145,147
Cash provided by operating activities	$ 218,277	$ 75,499	$ 89,890

Note 3 - Investments (Additiona

Note 3 - Investments (Additional Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Non-current investments	$ 33.9	$ 33.7
Carrying value of non-current investments	0.7	1.4
Equity Method Investments	0.1
Equity Losses	$ 0.7	0.3
Payments to acquire marketable securities		9
Unrealized losses on investment		$ 0.2	$ 5.6

Note 4 -Business Segments, Sale

Note 4 -Business Segments, Sales of Products and Significant Customers (Additional Information) (Details) $ in Thousands, oz in Millions, T in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) Segment T oz	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	4
Writedown of property, plant and equipment	$ 14,574	$ 0	$ 0
Derivative, loss on derivative	1,300	19,700	5,800
Actual Costs of Work Performed	8,800	3,600	400
Trade	31,515	19,425	45,100
Allowance for doubtful accounts	$ 0	$ 0	$ 0
Derivative, loss, statement of income or comprehensive income [Extensible Enumeration]	Unrealized (loss) gain on derivative contracts designated as hedge transactions	Unrealized (loss) gain on derivative contracts designated as hedge transactions	Unrealized (loss) gain on derivative contracts designated as hedge transactions
Debt Instrument, Payment Terms	Payment terms are 30 days after receipt of an invoice by CIRNAC. CIRNAC has the ability to cancel the contract with or without cause by providing written notice to the Company. ERDC is owed for work performed as of the date of cancellation.
Property Plant And Mine Development Member
Segment Reporting Information [Line Items]
Writedown of property, plant and equipment	$ 14,600
Lucky Friday [Member]
Segment Reporting Information [Line Items]
Business interruption insurance proceeds received	50,000
Writedown of property, plant and equipment	$ 13,900
Silver Contracts [Member]
Segment Reporting Information [Line Items]
Metals contained in concentrates (Ounce) | oz	1.5
Gold [Member]
Segment Reporting Information [Line Items]
Metals contained in concentrates (Ounce) | oz	2,000
Zinc [Member]
Segment Reporting Information [Line Items]
Metals contained in concentrates (Ounce) | T	39,150
Lead [Member]
Segment Reporting Information [Line Items]
Metals contained in concentrates (Ounce) | T	52,350

Note 4 -Business Segments, Sa_2

Note 4 -Business Segments, Sales of Products and Significant Customers - Schedule of Information About Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Segment Reporting Information [Line Items]
Total consolidated sales	$ 929,925		$ 720,227		$ 718,905
Salaries, wages and other benefits	202,078		187,124		172,024
Contractors	86,927		58,107		75,966
Materials and consumables	218,320		184,634		171,896
Product inventory change	(8,941)		14,299		(17,927)
Other direct production costs	78,822		72,945		59,152
Transfer to ramp-up and suspension costs	(28,961)	[1]	(58,605)	[2]	(2,300)	[3]
Depreciation, depletion and amortization	183,470		148,774		143,938
Gross profit	198,210		112,949		116,156
Other segment items	91,934	[4]	157,623	[5]	128,594	[6]
Income (loss) from operations	106,276		(44,674)		(12,438)
Interest expense	(49,834)		(43,319)		(42,793)
Fair value adjustments, net	(2,204)		2,925		(4,723)
Foreign exchange gain (loss), net	7,552		(3,810)		7,211
Other income	4,426		5,883		7,829
Income (loss) before income and mining taxes	66,216		(82,995)		(44,914)
Capital additions	214,492		223,887		149,378
Identifiable assets	2,981,060		3,011,104		2,927,172
Metal Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	909,369		714,944		718,432
Environmental Remediation Services [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	20,556		5,283		473
Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	3,834		0		0
Reconciliation of Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	933,759		720,227		718,905
Elimination of Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	(3,834)		0		0
Greens Creek [Member]
Segment Reporting Information [Line Items]
Salaries, wages and other benefits	69,990		68,183		64,142
Contractors	6,135		5,917		7,550
Materials and consumables	93,223		89,850		81,538
Product inventory change	5,858		4,266		(5,885)
Other direct production costs	39,471		37,684		36,462
Transfer to ramp-up and suspension costs	0	[1]	0	[2]	0	[3]
Depreciation, depletion and amortization	53,450		53,995		48,911
Gross profit	153,447		124,609		102,344
Capital additions	47,795		43,542		36,898
Identifiable assets	564,334		569,369		582,687
Greens Creek [Member] | Metal Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	421,574		384,504		335,062
Greens Creek [Member] | Environmental Remediation Services [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0		0		0
Greens Creek [Member] | Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0		0		0
Greens Creek [Member] | Reconciliation of Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	421,574		384,504		335,062
Greens Creek [Member] | Elimination of Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0
Lucky Friday [Member]
Segment Reporting Information [Line Items]
Salaries, wages and other benefits	52,879		43,142		42,155
Contractors	14,154		8,681		11,384
Materials and consumables	39,957		27,030		29,868
Product inventory change	(2,628)		8,014		(2,302)
Other direct production costs	1,281		(1,460)		1,789
Transfer to ramp-up and suspension costs	(2,207)	[1]	(25,548)	[2]	0	[3]
Depreciation, depletion and amortization	41,049		24,325		33,704
Gross profit	58,669		32,100		31,216
Capital additions	49,592		65,337		50,992
Identifiable assets	587,945		578,110		571,510
Lucky Friday [Member] | Metal Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	203,154		116,284		147,814
Lucky Friday [Member] | Environmental Remediation Services [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0		0		0
Lucky Friday [Member] | Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0		0		0
Lucky Friday [Member] | Reconciliation of Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	203,154		116,284		147,814
Lucky Friday [Member] | Elimination of Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0
Keno Hill [Member]
Segment Reporting Information [Line Items]
Salaries, wages and other benefits	29,658		21,569		863
Contractors	22,960		10,472		482
Materials and consumables	28,648		18,018		459
Product inventory change	(8,902)		(1,163)		0
Other direct production costs	13,216		12,138		496
Transfer to ramp-up and suspension costs	(26,754)	[1]	(29,793)	[2]	(2,300)	[3]
Depreciation, depletion and amortization	16,136		4,277		0
Gross profit	0		0		0
Capital additions	54,869		44,672		19,725
Identifiable assets	413,982		362,986		276,096
Keno Hill [Member] | Metal Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	74,962		35,518		0
Keno Hill [Member] | Environmental Remediation Services [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0		0		0
Keno Hill [Member] | Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	3,834		0		0
Keno Hill [Member] | Reconciliation of Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	78,796		35,518		0
Keno Hill [Member] | Elimination of Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	(3,834)
Casa Berardi [Member]
Segment Reporting Information [Line Items]
Salaries, wages and other benefits	49,345		51,201		58,678
Contractors	23,982		31,912		52,715
Materials and consumables	55,867		48,130		54,896
Product inventory change	(3,269)		2,913		(186)
Other direct production costs	24,854		23,376		21,833
Transfer to ramp-up and suspension costs	0	[1]	(2,228)	[2]	0	[3]
Depreciation, depletion and amortization	72,835		66,037		60,962
Gross profit	(13,935)		(43,663)		(13,762)
Capital additions	60,704		70,056		39,667
Identifiable assets	687,080		683,035		681,631
Casa Berardi [Member] | Metal Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	209,679		177,678		235,136
Casa Berardi [Member] | Environmental Remediation Services [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0		0		0
Casa Berardi [Member] | Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0		0		0
Casa Berardi [Member] | Reconciliation of Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	209,679		177,678		235,136
Casa Berardi [Member] | Elimination of Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0
Other Operating Segment [Member]
Segment Reporting Information [Line Items]
Salaries, wages and other benefits	206		3,029		6,186
Contractors	19,696		1,125		3,835
Materials and consumables	625		1,606		5,135
Product inventory change	0		269		(9,554)
Other direct production costs	0		1,207		(1,428)
Transfer to ramp-up and suspension costs	0	[1]	(1,036)	[2]	0	[3]
Depreciation, depletion and amortization	0		140		361
Gross profit	29		(97)		(3,642)
Capital additions	1,532		280		2,096
Identifiable assets	727,719		817,604		815,248
Other Operating Segment [Member] | Metal Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0		960		420
Other Operating Segment [Member] | Environmental Remediation Services [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	20,556		5,283		473
Other Operating Segment [Member] | Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	0		0		0
Other Operating Segment [Member] | Reconciliation of Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	20,556		$ 6,243		$ 893
Other Operating Segment [Member] | Elimination of Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	$ 0
[1] Total cost of sales in excess of sales value are transferred to ramp-up and suspension costs. Total cost of sales in excess of sales value are transferred to ramp-up and suspension costs. Total cost of sales in excess of sales value are transferred to ramp-up and suspension costs. Other operating expense items include general and administrative, exploration and pre-development, ramp-up and suspension costs, provision for closed operations and environmental matters, write-down of property, plant and equipment and other operating (income) expense, net. Other operating expense items include general and administrative, exploration and pre-development, ramp-up and suspension costs, provision for closed operations and environmental matters, write-down of property, plant and equipment and other operating (income) expense, net. Other operating expense items include general and administrative, exploration and pre-development, ramp-up and suspension costs, provision for closed operations and environmental matters, write-down of property, plant and equipment and other operating (income) expense, net.

Note 4 -Business Segments, Sa_3

Note 4 -Business Segments, Sales of Products and Significant Customers - Schedule of Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Long-lived assets	$ 2,694,119	$ 2,666,250
UNITED STATES
Segment Reporting Information [Line Items]
Long-lived assets	1,684,890	1,698,285
CANADA
Segment Reporting Information [Line Items]
Long-lived assets	1,001,612	960,109
MEXICO
Segment Reporting Information [Line Items]
Long-lived assets	$ 7,617	$ 7,856

Note 4 -Business Segments, Sa_4

Note 4 -Business Segments, Sales of Products and Significant Customers - Schedule of Sales Contributed by Each Segment (Details) - Revenue Benchmark [Member] - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Percentage of sales	100%	100%	100%
Greens Creek [Member]
Segment Reporting Information [Line Items]
Percentage of sales	46.40%	53.70%	46.60%
Lucky Friday [Member]
Segment Reporting Information [Line Items]
Percentage of sales	22.30%	16.30%	20.60%
Keno Hill [Member]
Segment Reporting Information [Line Items]
Percentage of sales	8.20%	5%	0%
Casa Berardi [Member]
Segment Reporting Information [Line Items]
Percentage of sales	23.10%	24.90%	32.70%
Other [Member]
Segment Reporting Information [Line Items]
Percentage of sales	0%	0.10%	0.10%

Note 4 -Business Segments, Sa_5

Note 4 -Business Segments, Sales of Products and Significant Customers - Schedule of Sales of Products by Metal (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Less: Smelter and refining charges	$ (41,273)	$ (50,909)	$ (51,973)
Total consolidated sales	929,925	720,227	718,905
Silver Contracts [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	413,980	302,284	265,054
Gold [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	318,256	274,613	298,910
Lead [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	87,223	72,726	83,384
Zinc [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	130,767	116,230	123,057
Copper [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	416	0	0
Total Metal [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	909,369	714,944	718,432
Environmental Remediation Services [Member]
Segment Reporting Information [Line Items]
Total consolidated sales	$ 20,556	$ 5,283	$ 473

Note 4 -Business Segments, Sa_6

Note 4 -Business Segments, Sales of Products and Significant Customers - Schedule of Sales Information by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Sales by significant product type	$ 908,079	$ 695,267	$ 724,255
Doré and Metals from Doré [Member]
Segment Reporting Information [Line Items]
Sales by significant product type	238,124	211,321	255,608
Carbon [Member]
Segment Reporting Information [Line Items]
Sales by significant product type	7,670	4,333	2,607
Silver Concentrate [Member]
Segment Reporting Information [Line Items]
Sales by significant product type	493,584	356,941	329,165
Zinc Concentrate [Member]
Segment Reporting Information [Line Items]
Sales by significant product type	111,101	80,274	109,177
Precious Metals Concentrate [Member]
Segment Reporting Information [Line Items]
Sales by significant product type	57,600	42,398	27,698
UNITED STATES
Segment Reporting Information [Line Items]
Sales by significant product type	41,079	36,307	21,938
CANADA
Segment Reporting Information [Line Items]
Sales by significant product type	457,423	375,092	406,600
JAPAN
Segment Reporting Information [Line Items]
Sales by significant product type	44,561	52,744	51,375
KOREA
Segment Reporting Information [Line Items]
Sales by significant product type	181,372	127,590	107,828
CHINA
Segment Reporting Information [Line Items]
Sales by significant product type	$ 183,644	$ 103,534	$ 136,514

Note 4 -Business Segments, Sa_7

Note 4 -Business Segments, Sales of Products and Significant Customers - Schedule of Sales from Continuing Operations to Significant Metals Customers (Details) - Revenue from Contract with Customer Benchmark [Member] - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Customer A [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable	24.20%	17.20%	35.40%
Customer B [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable	11.80%	28.10%	23.90%
Customer C [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable	15.50%	18.50%	11.30%
Customer D [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable	9.50%	15.90%	6.90%

Note 4 -Business Segments, Sa_8

Note 4 -Business Segments, Sales of Products and Significant Customers - Summary of Trade Accounts Receivable (Details) - Trade Accounts Receivable [Member] - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Customer B [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable	46.10%	22.20%	57.50%
Customer C [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable	16.80%	3.30%	3.10%
Customer D [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable	28.20%		2.10%
Customer E [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable	7.20%	24.20%	3.20%
Customer F [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable			15.90%
Customer G [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable			11.80%
Customer H [Member]
Segment Reporting Information [Line Items]
Percentage of accounts receivable		34.80%

Note 5 - Environmental and Re_3

Note 5 - Environmental and Reclamation Activities - Schedule of Reclamation and Closure Costs Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 124,910	$ 120,457	$ 116,999	$ 113,231
Reclamation and closure costs, current	$ (13,748)	$ (9,660)
Environmental Loss Contingency, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Reclamation Costs, Current	Accrued Reclamation Costs, Current
Reclamation and closure costs, non-current	$ 111,162	$ 110,797
Environmental Loss Contingency, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Mine Reclamation and Closing Liability, Noncurrent	Mine Reclamation and Closing Liability, Noncurrent
Operating Properties [Member] | Greens Creek [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 38,737	$ 39,893
Operating Properties [Member] | Lucky Friday [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	10,982	12,022
Operating Properties [Member] | Keno Hill [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 3,500	$ 3,360
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Employee-related Liabilities, Current	Employee-related Liabilities, Current
Operating Properties [Member] | Casa Berardi [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 17,005	$ 11,157
Non-Operating Properties [Member] | Nevada Operations [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	33,700	30,539
Non-Operating Properties [Member] | San Sebastian [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	1,509	2,061
Non-Operating Properties [Member] | Troy Mine [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	3,385	5,238
Non-Operating Properties [Member] | Johnny M [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	10,148	10,148
Non-Operating Properties [Member] | All Other Sites [Member]
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 5,944	$ 6,039

Note 5 - Environmental and Re_4

Note 5 - Environmental and Reclamation Activities - Schedule of Reclamation and Closure Costs Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Environmental and Reclamation Activities [Abstract]
Beginning balance	$ 120,457	$ 116,999	$ 113,231
Accruals for estimated costs	(239)	2,952	2,874
Accretion expense	5,806	7,740	5,995
Revision of estimated cash flows due to changes in reclamation plans	7,383	(29)	452
Payment of reclamation obligations	(8,497)	(7,205)	(5,553)
Ending balance	$ 124,910	$ 120,457	$ 116,999

Note 5 - Environmental and Re_5

Note 5 - Environmental and Reclamation Activities - Schedule of Change in Asset Retirement Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Environmental and Reclamation Activities [Abstract]
Beginning Balance at January 1	$ 99,067	$ 96,620
Changes in obligations due to changes in reclamation plans	5,226	(29)
Accretion expense	5,806	7,740
Payment of asset retirement obligations	(4,667)	(5,264)
Ending balance at December 31	$ 105,432	$ 99,067

Note 5 - Environmental and Re_6

Note 5 - Environmental and Reclamation Activities - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Environmental and Reclamation Activities [Line Items]
Reclamation and closure costs	$ 124,910	$ 120,457	$ 116,999	$ 113,231
Minimum [Member]
Environmental and Reclamation Activities [Line Items]
Inflation Rate, Asset Retirement Obligation	1.80%
Minimum [Member] | Reclamation and Abandonment Costs [Member] | Measurement Input, Risk Free Interest Rate [Member]
Environmental and Reclamation Activities [Line Items]
Derivative liability, measurement input	0.0575
Minimum [Member] | Asset Retirement Obligation [Member] | Measurement Input, Risk Free Interest Rate [Member]
Environmental and Reclamation Activities [Line Items]
Derivative liability, measurement input	0.0275
Maximum [Member]
Environmental and Reclamation Activities [Line Items]
Inflation Rate, Asset Retirement Obligation	4%
Maximum [Member] | Reclamation and Abandonment Costs [Member] | Measurement Input, Risk Free Interest Rate [Member]
Environmental and Reclamation Activities [Line Items]
Derivative liability, measurement input	0.145
Maximum [Member] | Asset Retirement Obligation [Member] | Measurement Input, Risk Free Interest Rate [Member]
Environmental and Reclamation Activities [Line Items]
Derivative liability, measurement input	0.075

Note 6 - Employee Benefit Pla_3

Note 6 - Employee Benefit Plans (Details Textual) - USD ($) $ in Thousands	2 Months Ended	12 Months Ended
	Feb. 17, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Expected rate of return on plan assets	7.25%	7.25%	7.25%
Defined Benefit Plan Assumed Long Term Rate Basis Spread		1%
Defined Benefit Plan, Plan Assets, Contributions by Employer		$ 0	$ 1,756
Defined Contribution Plan, Employer Matching Contribution, Percent of Match		55%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay		6%
Defined Benefit Plan, Plan Assets, Contributions by Employer		$ 1,600	1,300	$ 600
Capital Accumulation 401(K) Plan [Member]
Defined Benefit Plan, Plan Assets, Contributions by Employer		$ 4,800	4,600	4,500
Defined Contribution Plan, Employer Matching Contribution, Percent of Match		100%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay		6%
Pension plans
Defined Benefit Plan, Plan Assets, Contributions by Employer			1,000
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan, Plan Assets, Contributions by Employer		$ 800
Common Stock [Member] | Supplemental Employee Retirement Plan [Member]
Common stock investments		18,900	19,900
Hecla Plans
Defined Benefit Plan, Plan Assets, Contributions by Employer		200
Hecla Plans | Common Stock [Member]
Common stock investments		18,900	19,900
Lucky Friday plan | Common Stock [Member]
Common stock investments		2,900	2,900
Nonoperating Income (Expense) [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Except Service cost		$ 3,900	$ 4,100	$ 5,400

Note 6 - Employee Benefit Pla_4

Note 6 - Employee Benefit Plans - Change in Benefit Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan [Abstract]
Benefit obligation at beginning of year	$ 149,426	$ 148,143
Service cost	3,659	3,794	$ 6,262
Interest cost	8,302	7,974	5,476
Change due to mortality change	2,430	643
Change due to discount rate change	10,819	(3,635)
Actuarial return	1,714	401
Benefits paid	(8,346)	(7,894)
Benefit obligation at end of year	168,004	149,426	148,143
Fair value of plan assets at beginning of year	176,958	175,159
Actual return on plan assets	15,722	7,937
Employer contributions	0	1,756
Benefits paid	(8,346)	(7,894)
Fair value of plan assets at end of year	184,334	176,958	$ 175,159
Funded status at end of year	$ 16,330	$ 27,532

Note 6 - Employee Benefit Pla_5

Note 6 - Employee Benefit Plans - Amounts Recognized in the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Liabilities, Current [Abstract]
Accrued benefit asset	$ 19,879	$ 28,399
Accrued current benefit liability	(1,556)	(867)
Accrued benefit liability	(1,993)	0
Accumulated other comprehensive loss	19,489	8,031
Net amount recognized	$ 35,819	$ 35,563

Note 6 - Employee Benefit Pla_6

Note 6 - Employee Benefit Plans - Benefit Obligation and Prepaid Benefit Costs Assumptions (Details)		2 Months Ended	12 Months Ended
		Feb. 17, 2022	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Discount rate: net periodic pension cost			5.14%	5.77%
Discount rate: projected benefit obligation			5.14%	5.77%
Expected rate of return on plan assets		7.25%	7.25%	7.25%
Rate of compensation increase: net periodic pension cost	[1]		3%
Rate of compensation increase: projected benefit obligation	[2]		3%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase: net periodic pension cost	[1]			5%
Rate of compensation increase: projected benefit obligation	[2]			4%
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase: net periodic pension cost	[1]			2%
Rate of compensation increase: projected benefit obligation	[2]			2%
Median [Member]
Defined Benefit Plan Disclosure [Line Items]
Rate of compensation increase: projected benefit obligation	[2]			3%
[1] 5% for 2024 and 2% per year thereafter 4% for 2024, 3% for 2025 and 2% per year thereafter

Note 6 - Employee Benefit Pla_7

Note 6 - Employee Benefit Plans - Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan [Abstract]
Service cost	$ 3,659	$ 3,794	$ 6,262
Interest cost	8,302	7,974	5,476
Expected return on plan assets	$ (12,544)	$ (12,428)	$ (13,452)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Comprehensive Income (Loss), Net of Tax, Attributable to Parent	Comprehensive Income (Loss), Net of Tax, Attributable to Parent	Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Amortization of prior service benefit	$ 265	$ 500	$ 511
Amortization of net loss (gain)	61	(188)	2,049
Net periodic pension (benefit) cost	$ (257)	$ (348)	$ 846

Note 6 - Employee Benefit Pla_8

Note 6 - Employee Benefit Plans - Investment Policy Allocation (Details)	Dec. 31, 2024
Large Cap US Equity [Member]
Investment policy allocation	17%
Large Cap US Equity [Member] | Maximum [Member]
Investment policy allocation	20%
Small Cap US Equity [Member]
Investment policy allocation	8%
Small Cap US Equity [Member] | Maximum [Member]
Investment policy allocation	10%
Non-U.S. equity [Member]
Investment policy allocation	25%
Non-U.S. equity [Member] | Maximum [Member]
Investment policy allocation	30%
U.S. Fixed Income [Member]
Investment policy allocation	18%
U.S. Fixed Income [Member] | Maximum [Member]
Investment policy allocation	23%
Emerging Market Debt [Member]
Investment policy allocation	5%
Emerging Market Debt [Member] | Maximum [Member]
Investment policy allocation	8%
Real Estate [Member]
Investment policy allocation	15%
Real Estate [Member] | Maximum [Member]
Investment policy allocation	18%
Absolute Return [Member]
Investment policy allocation	5%
Absolute Return [Member] | Maximum [Member]
Investment policy allocation	7%
Company Stock/Real Return [Member]
Investment policy allocation	7%
Company Stock/Real Return [Member] | Maximum [Member]
Investment policy allocation	13%

Note 6 - Employee Benefit Pla_9

Note 6 - Employee Benefit Plans - Fair Value by Asset Category (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Total fair value	$ 184,334	$ 176,958	$ 175,159
Fair Value, Inputs, Level 1 [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	109,396	103,962
Fair Value, Inputs, Level 1 [Member] | Lucky Friday Pension Plan [Member]
Total fair value	16,071	15,781
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	109,396	103,962
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | Lucky Friday Pension Plan [Member]
Total fair value	16,071	15,781
Fair Value Measured at Net Asset Value Per Share [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	157,402	150,377
Fair Value Measured at Net Asset Value Per Share [Member] | Lucky Friday Pension Plan [Member]
Total fair value	26,932	26,581
Interest-Bearing Deposits [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	2,699	525
Interest-Bearing Deposits [Member] | Lucky Friday Pension Plan [Member]
Total fair value	123	117
Interest-Bearing Deposits [Member] | Fair Value, Inputs, Level 1 [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	2,699	525
Interest-Bearing Deposits [Member] | Fair Value, Inputs, Level 1 [Member] | Lucky Friday Pension Plan [Member]
Total fair value	123	117
Common Stock [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	18,874	19,933
Common Stock [Member] | Lucky Friday Pension Plan [Member]
Total fair value	2,932	2,872
Common Stock [Member] | Fair Value, Inputs, Level 1 [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	18,874	19,933
Common Stock [Member] | Fair Value, Inputs, Level 1 [Member] | Lucky Friday Pension Plan [Member]
Total fair value	2,932	2,872
Mutual Funds [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	87,823	83,504
Mutual Funds [Member] | Lucky Friday Pension Plan [Member]
Total fair value	13,016	12,792
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	87,823	83,504
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Lucky Friday Pension Plan [Member]
Total fair value	13,016	12,792
Real Estate Investments [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	16,318	18,029
Real Estate Investments [Member] | Lucky Friday Pension Plan [Member]
Total fair value	3,698	4,173
Real Estate Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value		0
Real Estate Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Lucky Friday Pension Plan [Member]
Total fair value		0
Common Collective Funds [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	31,688	28,386
Common Collective Funds [Member] | Lucky Friday Pension Plan [Member]
Total fair value	7,163	6,627
Common Collective Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value		0
Common Collective Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Lucky Friday Pension Plan [Member]
Total fair value		0
Investments Measured At Net Asset Value [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value	48,006	46,415
Investments Measured At Net Asset Value [Member] | Lucky Friday Pension Plan [Member]
Total fair value	$ 10,861	10,800
Investments Measured At Net Asset Value [Member] | Fair Value, Inputs, Level 1 [Member] | Hecla Mining Company Retirement Plan [Member]
Total fair value		0
Investments Measured At Net Asset Value [Member] | Fair Value, Inputs, Level 1 [Member] | Lucky Friday Pension Plan [Member]
Total fair value		$ 0

Note 6 - Employee Benefit Pl_10

Note 6 - Employee Benefit Plans - Future Benefit Payments (Details) $ in Thousands	Dec. 31, 2024 USD ($)
Defined Benefit Plan [Abstract]
2025	$ 10,061
2026	10,171
2027	10,158
2028	10,427
2029	10,610
Years 2030-2033	$ 53,433

Note 6 - Employee Benefit Pl_11

Note 6 - Employee Benefit Plans - Accumulated Benefit Obligations (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Plan Assets Exceed ABO [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 48,251	$ 149,426
Accumulated benefit obligation	47,262	146,336
Fair value of plan assets	66,573	$ 176,958
ABO Exceed Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	119,753
Accumulated benefit obligation	116,148
Fair value of plan assets	$ 117,761

Note 6 - Employee Benefit Pl_12

Note 6 - Employee Benefit Plans - Pension and Benefit Plan Amounts Included in Accumulated Other Comprehensive Income (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)
Defined Benefit Plan [Abstract]
Unamortized net loss	$ 19,185
Unamortized prior service cost	$ 304

Note 7 - Income and Mining Ta_3

Note 7 - Income and Mining Taxes - Schedule of Components of Income and Mining Tax Benefit (Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current:
Domestic	$ (6,758)	$ (3,846)	$ (3,915)
Foreign	(3,968)	(3,322)	(5,119)
Total current income and mining tax (provision) benefit	(10,726)	(7,168)	(9,034)
Deferred:
Domestic	(30,435)	(17,058)	2,064
Foreign	10,747	23,004	14,536
Total deferred income and mining tax (provision) benefit	(19,688)	5,946	16,600
Total benefit (provision), Amount	$ (30,414)	$ (1,222)	$ 7,566

Note 7 - Income and Mining Ta_4

Note 7 - Income and Mining Taxes - Schedule of Domestic and Foreign Components of Income (Loss) Before Income and Mining Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Line Items]
Total	$ 66,216	$ (82,995)	$ (44,914)
Domestic [Member]
Income Tax Disclosure [Line Items]
Total	121,273	43,745	(6,343)
Foreign [Member]
Income Tax Disclosure [Line Items]
Total	$ (55,057)	$ (126,740)	$ (38,571)

Note 7 - Income and Mining Ta_5

Note 7 - Income and Mining Taxes - Schedule of Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Computed “statutory” benefit (provision), Amount	$ (13,905)	$ 17,429	$ 9,432
Computed “statutory” benefit (provision), Percentage	22%	21%	21%
Percentage depletion, Amount	$ 9,895	$ 4,205	$ 8,542
Percentage depletion, Percentage	(15.00%)	5%	19%
Change in valuation allowance, Amount	$ (14,195)	$ (20,016)	$ (8,113)
Change in valuation allowance, Percentage	21%	(24.00%)	(18.00%)
State taxes, net of federal tax benefit, Amount	$ (4,823)	$ (2,731)	$ (158)
State taxes, net of federal tax benefit, Percentage	7%	(3.00%)	0%
Foreign currency remeasurement, Amount	$ 590	$ (4,155)	$ 4,559
Foreign currency remeasurement, Percentage	(1.00%)	(5.00%)	10%
Rate differential on foreign earnings, Amount	$ 3,293	$ 6,553	$ 1,515
Rate differential on foreign earnings, Percentage	(5.00%)	8%	3%
Compensation, Amount	$ (2,684)	$ (1,636)	$ 173
Compensation, Percentage	4%	(2.00%)	0%
Mining and other taxes, Amount	$ (7,661)	$ (1,359)	$ (6,609)
Mining and other taxes, Percentage	12%	(2.00%)	(15.00%)
Other, Amount	$ (924)	$ 488	$ (1,775)
Other, Percentage	1%	1%	(3.00%)
Total benefit (provision), Amount	$ (30,414)	$ (1,222)	$ 7,566
Total benefit (provision), Percentage	46%	(1.00%)	17%

Note 7 - Income and Mining Ta_6

Note 7 - Income and Mining Taxes - Schedule of Components of Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Accrued reclamation costs	$ 34,538	$ 33,451
Deferred exploration	21,591	22,341
Foreign net operating losses	50,763	52,091
Domestic net operating losses	191,583	214,137
Foreign exchange loss	29,292	22,247
Foreign tax credit carryforward	1,576	2,026
Miscellaneous	38,443	35,060
Total deferred tax assets	367,786	381,353
Valuation allowance	(115,105)	(100,910)	$ (72,856)	$ (39,152)
Total deferred tax assets	252,681	280,443
Deferred tax liabilities:
Miscellaneous	(8,648)	(12,950)
Properties, plants and equipment	(354,299)	(369,445)
Total deferred tax liabilities	(362,947)	(382,395)
Net deferred tax liability	$ (110,266)	$ (101,952)

Note 7 - Income and Mining Ta_7

Note 7 - Income and Mining Taxes - Schedule of Changes in Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Line Items]
Balance at beginning of year	$ (100,910)	$ (72,856)	$ (39,152)
Balance at end of year	(115,105)	(100,910)	(72,856)
Increase Due to Uncertainty of Recovery [Member]
Income Tax Disclosure [Line Items]
Valuation allowance, deferred tax asset	(16,965)	(21,114)	(13,256)
Decrease Related to Utilization and Expiration [Member]
Income Tax Disclosure [Line Items]
Valuation allowance, deferred tax asset	2,770	1,137	5,143
Klondex Mines Ltd [Member] | Business Acquisition [Member]
Income Tax Disclosure [Line Items]
Valuation allowance, deferred tax asset	$ 0	$ (8,077)	$ (25,591)

Note 7 - Income and Mining Ta_8

Note 7 - Income and Mining Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Line Items]
Deferred tax liabilities	$ 110,266	$ 101,952
Deferred tax assets, valuation allowance	115,105	100,910	$ 72,856	$ 39,152
Unrecognized tax benefits	0	0
Mexican Tax Authority [Member]
Income Tax Disclosure [Line Items]
Deferred tax assets, valuation allowance	11,600
Nevada Operations [Member]
Income Tax Disclosure [Line Items]
Deferred tax assets, valuation allowance	39,200
Deferred tax assets, tax credit carryforwards	5,800
Tax credit carryforward, amount	27,500
Foreign Tax Jurisdiction [Member]
Income Tax Disclosure [Line Items]
Operating loss carryforwards	183,000
Tax credit carryforward, amount	$ 1,600
Tax credit carryforward term	10 years
Tax credit carryforward, limitations on use	Our foreign tax credits will expire between 2025 and 2026.
Domestic Tax Jurisdiction [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward, valuation allowance	$ 3,400
Deferred tax assets, tax credit carryforwards	900
Operating loss carryforwards	818,100	$ 318,200
Operating loss carryforwards, Indefinite period	468,300
Tax credit carryforward, amount	4,700
Alexco Resource Corp Member
Income Tax Disclosure [Line Items]
Deferred tax assets, valuation allowance	60,900
Deferred tax assets, tax credit carryforwards	4,400
Tax credit carryforward, amount	$ 16,400

Note 8 - Income (Loss) per Co_3

Note 8 - Income (Loss) per Common Share (Details Textual) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share [Abstract]
Warrants exerciseable	2,068,000,000
Warrants exercise price per share	$ 8.02
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)		0	0

Note 8 - Income (Loss) per Co_4

Note 8 - Income (Loss) per Common Share - Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share [Abstract]
Net Income (Loss)	$ 35,802	$ (84,217)	$ (37,348)
Preferred stock dividends	(552)	(552)	(552)
Net income (loss) applicable to common stockholders	$ 35,250	$ (84,769)	$ (37,900)
Basic weighted average common shares	620,848	605,668	557,344
Dilutive units	1,687	0	0
Diluted weighted average common shares	622,535	605,668	557,344
Basic income (loss) per common share	$ 0.06	$ (0.14)	$ (0.07)
Diluted income (loss) per common share	$ 0.06	$ (0.14)	$ (0.07)

Note 9 - Debt, Credit Facilit_3

Note 9 - Debt, Credit Facility and Leases (Details Textual) $ in Thousands, $ in Millions					12 Months Ended
	Feb. 16, 2026	Jul. 21, 2022	Jul. 09, 2020 CAD ($)	Mar. 19, 2020 USD ($)	Feb. 15, 2026	Feb. 15, 2025	Dec. 31, 2024 USD ($)	Feb. 15, 2024	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021	May 03, 2024 USD ($)	Jul. 09, 2020 USD ($) Contract	Jul. 09, 2020 CAD ($) Contract	Feb. 19, 2020 USD ($)
Proceeds from issuance of long-term debt							$ 279,000		$ 239,000	$ 25,000
Finance lease liability							21,912		26,800
Finance lease liability, current							8,200		9,800
Finance lease liability, noncurrent							13,700		17,000
Finance lease right-of-use asset							14,000		20,300
Finance lease right-of-use asset, amortization							7,900		12,600	7,100
Finance lease, interest expense							900		$ 900	$ 900
Finance lease, liability, payment, due							24,135
Finance lease, liability, undiscounted excess amount							$ 2,223
Finance lease, weighted average remaining lease term (year)							1 year 8 months 12 days		2 years 2 months 12 days
Finance lease, weighted average discount rate, percent							9.70%		9.90%
Finance lease, liability, statement of financial position [Extensible Enumeration]										Finance lease liability	Finance lease liability
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]							Liabilities		Liabilities
Finance lease, right-of-use asset, statement of financial position [Extensible Enumeration]							Properties, plants, equipment and mine development, net		Properties, plants, equipment and mine development, net
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]							Liabilities, Current		Liabilities, Current	Operating lease liability	Operating lease liability
Operating lease liability							$ 7,995		$ 8,600
Operating lease liability, current							900		800
Operating lease liability, noncurrent							7,100		7,800
Operating lease right-of-use asset							7,544		8,349
Operating lease expense							$ 3,800		$ 3,100	$ 3,100
Operating lease, weighted average remaining lease term (year)							7 years 3 months 18 days		9 years 9 months 18 days
Operating lease, weighted average discount rate, percent							5.70%		6.50%
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]							Liabilities, Current		Liabilities, Current
Operating lease, liability, statement of financial position [Extensible Enumeration]							Total current liabilities		Total current liabilities	Operating lease liability	Operating lease liability
New Credit Agreement [Member]
Line of credit facility, maximum borrowing capacity							$ 195,800
Long-term line of credit							6,200		$ 6,900
Proceeds from lines of credit							$ 23,000		128,000
New Credit Agreement [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Line of credit facility, maximum borrowing capacity												$ 150,000
Line of credit facility, commitment fee percentage		0.45%
New Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Line of credit facility, maximum borrowing capacity												$ 225,000
Line of credit facility, commitment fee percentage		0.7875%
New Credit Agreement [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt instrument, basis spread on variable rate							2%
New Credit Agreement [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt instrument, basis spread on variable rate							3.50%
New Credit Agreement [Member] | Base Rate [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt instrument, basis spread on variable rate							1%
Debt instrument, basis spread on variable rate, applicable margin		1%
New Credit Agreement [Member] | Base Rate [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt instrument, basis spread on variable rate							2.50%
New Credit Agreement [Member] | Fed Funds Effective Rate Overnight Index Swap Rate [Member] | Revolving Credit Facility [Member]
Debt instrument, basis spread on variable rate		0.50%
New Credit Agreement [Member] | Leverage Ratio Applicable Margin [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt instrument, participation fee, percent		2%
New Credit Agreement [Member] | Leverage Ratio Applicable Margin [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt instrument, participation fee, percent		3.50%
Senior Notes [Member]
Long-term debt balance							$ 495,184		$ 636,000
Senior Notes [Member] | The 2028 Senior Notes [Member]
Debt instrument, interest rate, stated percentage							7.25%		7.25%						7.25%
Debt instrument, face amount															$ 475,000
Underwriting discount on senior notes															1.16%
Debt instrument, unamortized discount															$ 5,500
Debt instrument, redemption price, percentage								105.438%
Debt instrument, redemption price, percentage, net of cash proceeds of equity offerings											35%
Debt instrument, redemption price, percentage, including accrued and unpaid interest											101%
Long-term debt balance							$ 472,184		$ 471,270
Senior Notes [Member] | The 2028 Senior Notes [Member] | Forecast [Member]
Debt instrument, redemption price, percentage	100%				101.813%	103.625%
Senior Notes [Member] | The 2021 Senior Notes [Member]
Proceeds from issuance of long-term debt				$ 469,500
Previously outstanding				6.875%
Interest expense debt							$ 35,400		$ 34,400	$ 35,400
Senior Notes [Member] | IQ Notes [Member]
Debt instrument, interest rate, stated percentage							7.25%		7.25%				6.515%	6.515%
Debt instrument, face amount													$ 36,800	$ 50
Interest expense debt							$ 2,200		$ 2,300	$ 2,300
Debt instrument, unamortized premium, percentage of principal													103.65%	103.65%
Debt instrument, unamortized premium														$ 1.8
Debt instrument, effective annual yield													5.74%	5.74%
Long-term debt balance							0		$ 36,730					$ 48.2
Debt instrument, number of issuance installments | Contract													4	4
Proceeds from issuance of debt			$ 12.5
Payments of debt issuance costs			$ 0.6
Debt instrument, covenant, investment over next four years														$ 100
Senior Notes [Member] | New Credit Agreement [Member]
Letters of credit, drawn amount							$ 225,000

Note 9 - Debt, Credit Facilit_4

Note 9 - Debt, Credit Facility and Leases - Debt Summary (Details) $ in Thousands, $ in Millions	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jul. 09, 2020 CAD ($)
Debt Instrument [Line Items]
Less: current debt	$ (33,617)	$ 0
Senior Notes [Member]
Debt Instrument [Line Items]
Principal	531,525	639,473
Unamortized discount/premium and issuance costs	(2,724)	(3,473)
Total debt	528,801
Long-term debt	495,184	636,000
Less: current debt	(33,617)
Senior Notes [Member] | The 2028 Senior Notes [Member]
Debt Instrument [Line Items]
Principal	475,000	475,000
Unamortized discount/premium and issuance costs	(2,816)	(3,730)
Total debt	472,184
Long-term debt	472,184	471,270
Less: current debt	0
Senior Notes [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Principal	23,000	128,000
Unamortized discount/premium and issuance costs	0	0
Total debt	23,000
Long-term debt	23,000	128,000
Less: current debt	0
Senior Notes [Member] | IQ Notes [Member]
Debt Instrument [Line Items]
Principal	33,525	36,473
Unamortized discount/premium and issuance costs	92	257
Total debt	33,617
Long-term debt	0	$ 36,730	$ 48.2
Less: current debt	$ (33,617)

Note 9 - Debt, Credit Facilit_5

Note 9 - Debt, Credit Facility and Leases - Future Payments of Long-term Debt (Details) - Senior Notes [Member] $ in Thousands	Dec. 31, 2024 USD ($)
The 2028 Senior Notes [Member]
2025	$ 34,438
2026	34,438
2027	34,437
2028	479,305
Total	582,618
IQ Notes [Member]
2025	35,709
2026	0
2027	0
2028	0
Total	$ 35,709

Note 9 - Debt, Credit Facilit_6

Note 9 - Debt, Credit Facility and Leases - Maturities of Finance Lease (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Line of Credit Facility [Abstract]
2025, finance lease	$ 9,576
2026, finance lease	7,849
2027, finance lease	3,962
2028, finance lease	1,099
2029, finance lease	1,099
More than 5 years, finance lease	550
Total, finance lease	24,135
Less: effect of interest, finance lease	(2,223)
Finance lease, liability, statement of financial position [Extensible Enumeration]			Net finance lease obligation	Net finance lease obligation
Net finance lease obligation	$ 21,912	$ 26,800

Note 9 - Debt, Credit Facilit_7

Note 9 - Debt, Credit Facility and Leases - Maturities of Operating Lease (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Line of Credit Facility [Abstract]
2025, operating lease	$ 1,299
2026, operating lease	1,299
2027, operating lease	1,192
2028, operating lease	1,054
2029, operating lease	990
More than 5 years, operating lease	4,916
Total, operating lease	10,750
Less: Effect of discounting, operating lease	$ (2,755)
Operating lease, liability, statement of financial position [Extensible Enumeration]	Total current liabilities	Total current liabilities	Operating lease liability	Operating lease liability
Operating lease liability	$ 7,995	$ 8,600

Note 10 - Derivative Instrume_3

Note 10 - Derivative Instruments (Details Textual) $ in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2024 CAD ($) Contract	Dec. 31, 2024 USD ($) Contract
Maximum Allocation of Forecasted CAD-demonimated Operating Costs				75%	75%
Forecasted CAD-denominated Operating Costs to be Hedged, Term (Year)	5 years
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	$ 3,800	$ 3,600	$ 800
Gain (Loss) on Components Excluded from Assessment of Foreign Currency Cash Flow Hedge Effectiveness	0	0	$ 0
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months					$ 7,900
Derivative, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration]			Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent
Other Comprehensive Income (Loss) [Member]
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months					6,000
Price Risk Derivative [Member]
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax					$ 13,400
Foreign Exchange Forward [Member]
Derivative, Notional Amount				$ 11.7
Derivative, Forward Exchange Rate				0.01368	0.01368
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax					$ 8,000
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member]
Unrealized Gain (Loss) on Derivatives	5,700	1,200	$ 100
Foreign Exchange Forward [Member] | Casa Berardi [Member]
Derivative, Notional Amount				$ 15.8
Derivative, Forward Exchange Rate				0.01345	0.01345
Foreign Exchange Forward [Member] | Casa Berardi [Member] | Minimum [Member]
Derivative, Forward Exchange Rate				0.012816	0.012816
Foreign Exchange Forward [Member] | Casa Berardi [Member] | Maximum [Member]
Derivative, Forward Exchange Rate				0.014223	0.014223
Foreign Exchange Forward [Member] | Casa Berardi [Member] | Designated as Hedging Instrument [Member]
Derivative, Number of Instruments Held, Total | Contract				378	378
Derivative, Notional Amount				$ 279.3	$ 206,600
Foreign Exchange Forward [Member] | Casa Berardi and Keno Hill [Member]
Derivative, Notional Amount				$ 198.6
Derivative, Forward Exchange Rate				0.0134	0.0134
Foreign Exchange Forward [Member] | Casa Berardi & Keno Hill [Member]
Derivative, Notional Amount				$ 5.6
Derivative, Forward Exchange Rate				0.014025	0.014025
Foreign Exchange Forward [Member] | Keno Hill [Member]
Derivative, Notional Amount				$ 47.7
Derivative, Forward Exchange Rate				0.01373	0.01373
Unsettled Concentrate Sales Contracts [Member]
Derivative, Gain (Loss) on Derivative, Net, Total	1,300	$ 19,700	$ 5,800
Price Risk Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	11,400
Zinc Contract 2022 [Member] | Other Comprehensive Income (Loss) [Member]
Derivative, Gain (Loss) on Derivative, Net, Total	8,500
Commodity Contract [Member]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral, Total					$ 10,200
Derivative, Fair Value, Obligations Under the Agreements					$ 10,200
Zinc and Lead Contract 2023 [Member] | Other Comprehensive Income (Loss) [Member]
Derivative, Gain (Loss) on Derivative, Net, Total	$ 17,400

Note 10 - Derivative Instrume_4

Note 10 - Derivative Instruments - Foreign Currency (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Current derivative liabilities	$ (8,155)	$ (1,144)
Non-current derivatitive liabilities	2,021	364
Foreign Exchange Contract [Member]
Derivative [Line Items]
Other current assets	$ 0	$ 2,700
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Other non-current assets	$ 0	$ 2,000
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Current derivative liabilities	$ (8,200)	$ (1,100)
Non-current derivatitive liabilities	$ (2,000)	$ (400)

Note 10 - Derivative Instrume_5

Note 10 - Derivative Instruments - Summary of Forward Sales Contracts (Details) oz in Thousands, lb in Thousands	12 Months Ended
	Dec. 31, 2024 oz lb $ / £ $ / oz	Dec. 31, 2023 lb oz $ / £ $ / oz
Silver 2024 Settlements For Provisional Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | oz		735
Underlying, Derivative Mass | $ / oz		24.4
Gold 2024 Settlements For Provisional Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | oz		3
Underlying, Derivative Mass | $ / oz		2,045
Zinc 2024 Settlements for Provisional Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | lb		441
Underlying, Derivative Mass | $ / £		1.51
Silver 2025 Settlements For Provisional Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | oz	1,535
Underlying, Derivative Mass | $ / oz	31.46
Gold 2025 Settlements For Provisional Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | oz	2
Underlying, Derivative Mass | $ / oz	2,673
Zinc 2025 Settlements For Provisional Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | lb	20,834
Underlying, Derivative Mass | $ / £	1.4
Lead 2025 Settlements For Provisional Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | lb	14,661
Underlying, Derivative Mass | $ / £	0.97
Lead 2024 Settlements for Provisional Sales[Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | lb		15,542
Underlying, Derivative Mass | $ / £		1
Lead 2024 Settlements for Forecasted Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | lb		56,713
Underlying, Derivative Mass | $ / £		0.98
Zinc 2025 Settlements For Forecasted Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | lb	59,194
Underlying, Derivative Mass | $ / £	1.39
Lead 2025 Settlements For Forecasted Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | lb	47,840	49,273
Underlying, Derivative Mass | $ / £	0.99	0.98
Zinc 2026 Settlements For Forecasted Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | lb	6,283
Underlying, Derivative Mass | $ / £	1.41
Lead 2026 Settlements For Forecasted Sales [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Mass | lb	52,911
Underlying, Derivative Mass | $ / £	1.03

Note 10 - Derivative Instrume_6

Note 10 - Derivative Instruments - Fair Value of Forward and Put Option Contracts (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Contracts in a liability position	$ 8,155	$ 1,144
Other non-current assets, liability position	$ (2,021)	$ (364)
Forward and Put Option Contracts [Member]
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Forward and Put Option Contracts [Member] | Other Current Assets [Member]
Contracts in an asset position	$ 11,500	$ 3,100
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Contracts in a liability position	$ 0	$ 0
Net asset (liability)	11,500	3,100
Forward and Put Option Contracts [Member] | Other Noncurrent Assets [Member]
Contracts in an asset position	6,600	1,500
Contracts in a liability position	0	0
Net asset (liability)	6,600	1,500
Forward and Put Option Contracts [Member] | Current derivatives liability [Member]
Contracts in an asset position	$ 0	$ 0
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Contracts in a liability position	Contracts in a liability position
Contracts in a liability position	$ 0	$ (100)
Net asset (liability)	$ 0	$ (100)

Note 11 - Fair Value Measurem_2

Note 11 - Fair Value Measurement (Details Textual)	Dec. 31, 2024 USD ($)
Fair Value, Inputs, Level 1 [Member]
Carrying and fair value	$ 23,000,000
IQ Notes [Member]
Notes Payable, Total	33,600,000
IQ Notes [Member] | Fair Value, Inputs, Level 1 [Member]
Notes Payable, Fair Value Disclosure	$ 34,100,000
IQ Notes [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input, Annual Yield [Member]
Debt Instrument, Measurement Input	0.0677
Senior Notes [Member]
Notes Payable, Total	$ 472,200,000
Senior Notes [Member] | Fair Value, Inputs, Level 1 [Member]
Notes Payable, Fair Value Disclosure	$ 478,500,000

Note 11 - Fair Value Measurem_3

Note 11 - Fair Value Measurement - Details of Fair Value Adjustment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent	Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent
Total fair value adjustments, net	$ (2,204)	$ 2,925	$ (4,723)
Fair Value, Inputs, Level 1 [Member]
Unrealized gain (loss) on investments in equity securities	3,703	(243)	(5,632)
Derivative [Member] | Fair Value, Inputs, Level 3 [Member]
Loss (gain) on derivative contracts	(5,907)	3,168	844
Gain on disposition or exchange of investments	(5,907)	3,168	844
Securities Investment [Member] | Fair Value, Inputs, Level 1 [Member]
Loss (gain) on derivative contracts	0	0	65
Gain on disposition or exchange of investments	$ 0	$ 0	$ 65

Note 11 - Fair Value Measurem_4

Note 11 - Fair Value Measurement - Assets and Liabilities Accounted for at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Receivables from provisional concentrate sales	$ 17,538	$ 13,691
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]
Money market funds and other bank deposits	26,868	106,374
Equity securities	33,158	32,284
Certificates of deposit and other deposits	1,177	1,165
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]
Receivables from provisional concentrate sales	31,515	17,940
Metal forward contracts	$ 18,039	$ 4,698
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Assets	Assets
Foreign exchange contracts	$ 0	$ 4,657
Metal forward contracts	$ 0	$ 40
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Liabilities	Liabilities
Foreign exchange contracts	$ 10,176	$ 1,508

Note 12 - Stockholders' Equit_2

Note 12 - Stockholders' Equity (Details Textual)	1 Months Ended			3 Months Ended	12 Months Ended					28 Months Ended
	Feb. 29, 2024 USD ($)	Feb. 28, 2023 USD ($)	Sep. 30, 2021 $ / shares	Dec. 31, 2020 $ / shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) Director $ / shares shares	Dec. 31, 2020 $ / shares	Dec. 31, 2019 $ / shares	Dec. 31, 2024 USD ($) $ / shares shares	Feb. 15, 2022 $ / shares	Feb. 18, 2021 shares	Sep. 30, 2020 $ / shares	Jul. 20, 2018 shares	May 08, 2012 shares	Jun. 30, 2010 shares
Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ / shares				$ 0.015	$ 0.01				$ 0.01
Average Realized Silver Price, Minimum Dividend, Threshold (in dollars per share) | $ / shares									$ 30				$ 25
Average Realized Silver Price Per Ounce (in dollars per share) | $ / shares			$ 20					$ 25
Stock Issued During Period, Shares, New Issues (in shares) | shares					1,488,050
Share Price (in dollars per share) | $ / shares											$ 0
Series B preferred stock, shares outstanding (in shares) | shares					157,756	157,776				157,756
Percent of Shareholders' Consent Needed to Create or Issue Stock Ranking Senior to Series B Preferred Stock					66%					66%
Preferred stock, dividends declared (Quarterly)					$ 552,000	$ 552,000	$ 552,000
Series B preferred stock, liquidation preference					7,889,000	7,889,000				$ 7,889,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total					$ 5,600,000					$ 5,600,000
Share-based Compensation Arrangement by Share-based Payment Award, Measurement Period Used to Value Performance-based Awards (Year)					3 years
warrant holder | shares					2,068,000					2,068,000
Warrants exercise price per share | $ / shares					$ 8.02					$ 8.02
Number of series B preffered stock coverted | shares					20		40
Common stock issued upon conversion of series B preffered stock | shares					64		128
Unrecognized Tax Benefits, Interest on Income Taxes Expense					$ 6,800,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition					2 years
Restricted Stock Units Vested					$ 4,700,000	$ 4,600,000	$ 5,800,000
Distributed	$ 700,000	$ 1,000,000
Warrants in Connection with Klondex Mines Acquisition [Member]
Class of Warrant or Right, Issued During Period (in shares) | shares					2,068,000	4,136,000
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares														1
Warrants exercise price per share | $ / shares					$ 1.57					$ 1.57
Satisfy Withholding Obligations [Member]
Treasury Stock Acquired, Average Cost Per Share (in dollars per share) | $ / shares					$ 4.31	$ 5.03	$ 4.99
Stock Repurchased During Period, Shares (in shares) | shares					277,966,000	404,514	73,725
Stock Repurchased During Period, Value					$ 1,200,000	$ 2,000,000	$ 3,700,000
2010 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) | shares																20,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares) | shares					10,175,414					10,175,414
Directors Stock Plan [Member]
Number of distributed shares | shares							388,175
Number of directors | Director							2
Share-based Payment Arrangement, Expense					$ 800,000	$ 700,000	$ 400,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares) | shares					2,039,789					2,039,789
Share-Based Compensation Arrangement by Share-Based Payment Award, Method of Measuring Cost of Award Participant, Numerator					$ 120,000
Shares Issued, Shares, Share-based Payment Arrangement, before Forfeiture (in shares) | shares					150,387	125,063	98,310
Share-Based Payment Arrangement [Member]
Share-based Payment Arrangement, Expense					$ 8,700,000	$ 6,600,000	$ 6,000,000
Performance Shares [Member]
Unrecognized Tax Benefits, Interest on Income Taxes Expense					$ 1,600,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition					1 year 7 months 6 days
Series B Preferred Stock [Member]
Series B preferred stock, shares outstanding (in shares) | shares					157,756	157,776				157,756
Preferred Stock, Dividend Rate, Per-Dollar-Amount (in dollars per share) | $ / shares					$ 3.5
Preferred stock, dividends declared (Quarterly)					$ 552,000	$ 552,000	$ 552,000
Preferred Stock, Redemption Price Per Share (in dollars per share) | $ / shares					$ 50					$ 50
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ / shares							$ 50
Series B preferred stock, liquidation preference					$ 7,900,000					$ 7,900,000
Preferred Stock Conversion Price (in dollars per share) | $ / shares					$ 15.55					$ 15.55
Common Stock Repurchase Program [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares) | shares															20
Cumulative Stock Repurchased (in shares) | shares					934,100					934,100
Treasury Stock Acquired, Average Cost Per Share (in dollars per share) | $ / shares					$ 3.99
At-the-market Offering [Member]
Equity Distribution Agreement, Maximum Number of Shares to be Sold (in shares) | shares					9,339,287					9,339,287		60
At-the-market Offering [Member] | September 2022 through December 31, 2023 [Member]
Payments of Stock Issuance Costs										$ 2,100,000
At-the-market Offering [Member] | September 2022 through December 31, 2024 [Member]
Equity Distribution Agreement, Maximum Number of Shares to be Sold (in shares) | shares					23,843,684,000					23,843,684,000
Proceeds from Issuance or Sale of Equity										$ 132,300,000
At-the-market Offering [Member] | At The Market Equity Distribution Agreement [Member]
Proceeds from Issuance or Sale of Equity					$ 58,400,000
Payments of Stock Issuance Costs					900,000
O2024Q4Dividends [Member]
Dividends, Common Stock, Total					$ 25,500,000
O2023Q4Dividends [Member]
Dividends, Common Stock, Total						$ 15,700,000
O2022Q4Dividends [Member]
Dividends, Common Stock, Total							$ 12,900,000

Note 12 - Stockholders' Equit_3

Note 12 - Stockholders' Equity - Unvested Restricted Stock (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unvested, shares (in shares)	1,857,248	1,796,115	2,022,352
Granted, shares (in shares)	1,538,407	1,316,120	1,256,532
Forfeited, shares (in shares)	(130,450)	(336,060)	(177,801)
Vested	(908,132)	(918,927)	(1,304,968)
Unvested, shares (in shares)	2,357,073	1,857,248	1,796,115
Unvested, weighted average fair value per share (in dollars per share)	$ 4.28	$ 4.23	$ 3.97
Granted (unvested), weighted average fair value per share (in dollars per share)	5.17	5.05	4.41
Forfeited, weighted average fair value per share (in dollars per share)	5	4.9	4.41
Distributed (vested), weighted average fair value per share (in dollars per share)	4.45	5.05	3.97
Unvested, weighted average fair value per share (in dollars per share)	$ 4.76	$ 4.28	$ 4.23

Note 12 - Stockholders' Equit_4

Note 12 - Stockholders' Equity - Unvested Performance-based Shares (Details) - Performance Shares [Member] - $ / shares		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unvested, shares (in shares)		620,802	599,858	874,422
Granted, shares (in shares)		542,770	336,096	322,796
Vested	[1]		(205,425)	(597,360)
Forfeited, shares (in shares)	[2]	(290,950)
Canceled , shares (in shares)			(109,727)
Unvested, shares (in shares)		872,622	620,802	599,858
Unvested, weighted average fair value per share (in dollars per share)		$ 3.63	$ 5.54	$ 2.61
Granted (unvested), weighted average fair value per share (in dollars per share)		3.32	3.54	3.78
Forfeited, weighted average fair value per share (in dollars per share)	[2]	3.78
Distributed (vested), weighted average fair value per share (in dollars per share)	[1]		8.17	0.31
Canceled, weighted average fair value per share (in dollars per share)			5.3
Unvested, weighted average fair value per share (in dollars per share)		$ 3.39	$ 3.63	$ 5.54
[1] Vested on December 31 and distributed in February of the following year The awards granted in 2022 did not meet the established performance criteria and accordingly were forfeited as unvested

Note 12 - Stockholders' Equit_5

Note 12 - Stockholders' Equity - Details of Warrants Outstanding (Details)	Dec. 31, 2024 $ / shares shares
Warrants exercise price per share	$ 8.02
Warrants Expiring in April 2032 [Member]
Number of warrants (in shares) | shares	2,068,000
Warrants exercise price per share	$ 8.02

Note 13- Accumulated Other Comp

Note 13- Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Balance	$ 1,968,104	$ 1,978,967	$ 1,760,787
Other comprehensive income	(16,103)	3,389	30,904
Balance	2,039,514	1,968,104	1,978,967
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Balance	13,708	9,162	(4,675)
Other comprehensive income	(7,714)	4,546	13,837
Balance	5,994	13,708	9,162
Balance, beginning	(2,227)	(544)	4,689
Change , tax	2,822	(1,683)	(5,233)
Balance, ending	595	(2,227)	(544)
Accumulated Defined Benefit Plans Adjustment, Net Transition Attributable to Parent [Member]
Balance	(7,871)	(6,714)	(23,781)
Other comprehensive income	(8,389)	(1,157)	17,067
Balance	(16,260)	(7,871)	(6,714)
Balance, beginning	170	(258)	6,196
Change , tax	3,069	428	(6,454)
Balance, ending	3,239	170	(258)
AOCI Attributable to Parent [Member]
Balance	5,837	2,448	(28,456)
Other comprehensive income	(16,103)	3,389	30,904
Balance	(10,266)	5,837	2,448
Balance, beginning	(2,057)	(802)	10,885
Change , tax	5,891	(1,255)	(11,687)
Balance, ending	$ 3,834	$ (2,057)	$ (802)

Note 14 - Product Inventories -

Note 14 - Product Inventories - Schedule of Our Major Components of Product Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Inventory [Line Items]
Product inventories	$ 34,962	$ 28,823
Concentrates
Inventory [Line Items]
Product inventories	15,030	13,328
Stockpiled ore
Inventory [Line Items]
Product inventories	13,168	7,168
In-process
Inventory [Line Items]
Product inventories	$ 6,764	$ 8,327

Note 15 - Properties, Plants,_3

Note 15 - Properties, Plants, Equipment and Mine Development, net, and Lease Commitments - Major Components of Property, Plants, Equipment and mine development (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment, Gross	$ 4,704,126	$ 4,528,510
Less accumulated depreciation, depletion and amortization	2,010,007	1,862,260
Net carrying value	2,694,119	2,666,250
Mining properties, including asset retirement obligations
Property, Plant and Equipment, Gross	958,858	911,018
Development costs
Property, Plant and Equipment, Gross	671,741	630,391
Plants and equipment
Property, Plant and Equipment, Gross	1,805,236	1,666,577
Land
Property, Plant and Equipment, Gross	35,680	35,112
Mineral interests
Property, Plant and Equipment, Gross	1,166,045	1,164,390
Construction in progress
Property, Plant and Equipment, Gross	$ 66,566	$ 121,022

Note 15 - Properties, Plants,_4

Note 15 - Properties, Plants, Equipment and Mine Development, net, and Lease Commitments (Details textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Capital additions (excluding non-cash items)	$ 214.5
Finance Lease, Right-of-Use Asset, before Accumulated Amortization	108.5	$ 106.9
Finance Lease, Right-of-Use Asset, Accumulated Amortization	94.4	86.5
Lucky Friday [Member]
Capital additions (excluding non-cash items)	49.6
Greens Creek [Member]
Capital additions (excluding non-cash items)	47.8
Mining Assets, Value Beyond Proven and Probable Reserves (VBPP)	83.3	86.3
Casa Berardi [Member]
Capital additions (excluding non-cash items)	60.7
Mining Assets, Value Beyond Proven and Probable Reserves (VBPP)	323.6	323.6
Nevada Operations [Member]
Mining Assets, Value Beyond Proven and Probable Reserves (VBPP)	388.2	383.6
Keno Hill [Member]
Capital additions (excluding non-cash items)	54.9
Mining Assets, Value Beyond Proven and Probable Reserves (VBPP)	$ 95.7	$ 102.1

Note 16_ Commitments, Contingen

Note 16: Commitments, Contingencies, and Obligations (Details Textual) - USD ($) $ in Thousands		1 Months Ended
	Oct. 16, 2024	Jul. 31, 2018	Jun. 30, 2011	Dec. 31, 2024
Lessee, operating lease, liability, to be paid				$ 10,750
Lease Commitments [Member]
Lessee, operating lease, liability, to be paid				10,800
Performance Obligation Commitments [Member]
Surety bonds				213,600
Letters of credit outstanding, amount				6,200
Greens Creek [Member]
Contractual obligation				24,100
Greens Creek [Member] | Purchase Orders and Commitment [Member]
Contractual obligation				5,800
Lucky Friday [Member]
Estimated response costs	$ 299,000
Payments for legal settlements	$ 174,300
Lucky Friday [Member] | Purchase Orders and Commitment [Member]
Contractual obligation				9,700
Keno Hill [Member] | Purchase Orders and Commitment [Member]
Contractual obligation				11,200
Casa Berardi [Member] | Purchase Orders and Commitment [Member]
Contractual obligation				$ 9,100
Johnny M Mine Area near San Mateo, New Mexico [Member]
Estimated response costs		$ 9,600
Carpenter Snow Creek Superfund Site, Cascade County, Montana [Member]
Estimated response costs			$ 4,500
Estimated future response cost			$ 100,000

Note 17 - Subsequent Events (De

Note 17 - Subsequent Events (Details Textual) - $ / shares	Dec. 31, 2024	Dec. 31, 2023
Common Stock, Par or Stated Value Per Share	$ 0.25	$ 0.25