Hecla Mining (HL) 10-Q 7 Nov 19 2019 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Nov. 05, 2019
Document Information [Line Items]
Entity Central Index Key	0000719413
Entity Registrant Name	HECLA MINING CO/DE/
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2019
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
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 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 Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		495,540,493
Common Stock 1 [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 Preferred Stock [Member]
Document Information [Line Items]
Title of 12(b) Security	Series B Cumulative Convertible Preferred Stock, par value $0.25 per share
Trading Symbol	HL-PB
Security Exchange Name	NYSE

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 32,995	$ 27,389
Accounts receivable:
Trade	6,222	4,184
Taxes	22,902	14,191
Other, net	8,056	7,443
Inventories:
Concentrates, doré, and stockpiled ore	63,164	53,172
Materials and supplies	35,087	34,361
Prepaid taxes	100	12,231
Other current assets	10,400	11,179
Total current assets	178,926	164,150
Non-current investments	7,349	6,583
Non-current restricted cash and investments	1,025	1,025
Properties, plants, equipment and mineral interests, net	2,455,511	2,520,004
Operating lease right-of-use assets	17,313	0
Non-current deferred income taxes	3,701	1,987
Other non-current assets and deferred charges	9,353	10,195
Total assets	2,673,178	2,703,944
Current liabilities:
Accounts payable and accrued liabilities	57,860	77,861
Accrued payroll and related benefits	23,147	30,034
Accrued taxes	2,160	7,727
Current portion of finance leases	5,704	5,264
Current portion of operating leases	5,864	0
Current portion of accrued reclamation and closure costs	7,457	3,410
Accrued interest	15,039	5,961
Deferred revenue	20,084	0
Other current liabilities	8,528	5,937
Total current liabilities	145,843	136,194
Non-current finance leases	8,569	7,871
Non-current operating leases	11,466	0
Accrued reclamation and closure costs	103,821	104,979
Long-term debt	584,618	532,799
Non-current deferred tax liability	143,442	173,537
Non-current pension liability	50,662	47,711
Other non-current liabilities	8,113	9,890
Total liabilities	1,056,534	1,012,981
Commitments and contingencies (Notes 3, 5, 8, 10, and 12)
Preferred stock, 5,000,000 shares authorized: Series B preferred stock, $0.25 par value, 157,816 shares issued and outstanding, liquidation preference — $7,891	39	39
Common stock, $0.25 par value, 750,000,000 authorized shares; issued 2019 — 496,538,038 shares and 2018 — 487,830,728 shares	124,133	121,956
Capital surplus	1,897,363	1,880,481
Accumulated deficit	(343,958)	(248,308)
Accumulated other comprehensive loss	(37,958)	(42,469)
Less treasury stock, at cost; 2019 — 6,287,271 and 2018 — 5,226,791 shares issued and held in treasury	(22,975)	(20,736)
Total shareholders’ equity	1,616,644	1,690,963
Total liabilities and shareholders’ equity	$ 2,673,178	$ 2,703,944

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
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)	157,816	157,816
Series B preferred stock, shares outstanding (in shares)	157,816	157,816
Series B preferred stock, liquidation preference	$ 7,891	$ 7,891
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)	496,538,038	487,830,728
Treasury stock, shares (in shares)	6,287,271	5,226,791

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Sales of products	$ 161,532	$ 143,649	$ 448,321	$ 430,617
Cost of sales and other direct production costs	95,878	93,609	311,202	246,918
Depreciation, depletion and amortization	50,774	43,464	139,038	103,335
Total cost of sales	146,652	137,073	450,240	350,253
Gross profit	14,880	6,576	(1,919)	80,364
Other operating expenses:
General and administrative	7,978	10,327	26,855	27,849
Exploration	4,808	12,411	13,556	27,609
Pre-development	881	1,195	2,535	3,615
Research and development	53	1,269	614	5,042
Other operating expense	437	448	1,681	1,767
Loss (gain) on disposition of properties, plants, equipment and mineral interests	24	(3,208)	4,666	(3,374)
Provision for closed operations and reclamation	1,907	1,852	3,529	4,534
Suspension-related costs	3,722	6,519	8,766	18,337
Acquisition costs	183	6,139	593	9,656
Total other operating expense	19,993	36,952	62,795	95,035
Income (loss) from operations	(5,113)	(30,376)	(64,714)	(14,671)
Other income (expense):
(Loss) gain on derivative contracts	(4,718)	19,460	(2,719)	40,271
Gain (loss) on disposition of investments	927	(36)	927	(36)
Unrealized loss on investments	(126)	(2,207)	(1,159)	(2,461)
Foreign exchange gain (loss)	773	(2,212)	(6,741)	2,856
Other expense	(1,096)	(346)	(3,407)	(294)
Interest expense	(11,777)	(10,146)	(33,777)	(30,019)
Total other (expense) income	(16,017)	4,513	(46,876)	10,317
Loss before income taxes	(21,130)	(25,863)	(111,590)	(4,354)
Income tax benefit	1,614	2,679	20,009	1,484
Net loss	(19,516)	(23,184)	(91,581)	(2,870)
Preferred stock dividends	(138)	(138)	(414)	(414)
Loss applicable to common shareholders	(19,654)	(23,322)	(91,995)	(3,284)
Comprehensive loss:
Net loss	(19,516)	(23,184)	(91,581)	(2,870)
Change in fair value of derivative contracts designated as hedge transactions	(3,288)	3,743	4,511	(3,533)
Unrealized holding gains on investments	0	3	0	13
Comprehensive loss	$ (22,804)	$ (19,438)	$ (87,070)	$ (6,390)
Basic loss per common share after preferred dividends (in dollars per share)	$ (0.04)	$ (0.05)	$ (0.19)	$ (0.01)
Diluted loss per common share after preferred dividends (in dollars per share)	$ (0.04)	$ (0.05)	$ (0.19)	$ (0.01)
Weighted average number of common shares outstanding - basic (in shares)	489,971	452,636	486,298	417,532
Weighted average number of common shares outstanding - diluted (in shares)	489,971	452,636	486,298	417,532
Cash dividends declared per common share (in dollars per share)	$ 0.0025	$ 0.0025	$ 0.0075	$ 0.0075

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating activities:
Net loss	$ (91,581)	$ (2,870)
Non-cash elements included in net loss:
Depreciation, depletion and amortization	143,040	108,814
Gain on disposition of investments	(927)	0
Unrealized loss on investments	1,159	2,461
Adjustment of inventory to market value	1,399	7,232
Loss (gain) on disposition of properties, plants, equipment, and mineral interests	4,666	(3,374)
Provision for reclamation and closure costs	5,298	3,957
Stock compensation	4,758	4,672
Deferred income taxes	(26,616)	(4,637)
Amortization of loan origination fees	1,919	1,471
Loss (gain) on derivative contracts	5,824	(15,208)
Foreign exchange loss (gain)	6,263	(2,032)
Other non-cash items, net	0	(37)
Change in assets and liabilities, net of business acquisitions:
Accounts receivable	(10,215)	(4,424)
Inventories	(6,501)	(18,954)
Other current and non-current assets	14,913	(5,569)
Accounts payable and accrued liabilities	5,616	12,308
Accrued payroll and related benefits	4,506	(4,207)
Accrued taxes	(5,733)	845
Accrued reclamation and closure costs and other non-current liabilities	5,821	(5,238)
Cash provided by operating activities	63,609	75,210
Investing activities:
Additions to properties, plants, equipment and mineral interests	(97,338)	(83,285)
Acquisition of Klondex, net of cash and restricted cash acquired	0	(139,326)
Proceeds from sale of investments	1,760	0
Proceeds from disposition of properties, plants, equipment and mineral interests	86	722
Insurance proceeds received for damaged property	0	4,377
Purchases of investments	(389)	(31,971)
Maturities of investments	0	64,895
Net cash used in investing activities	(95,881)	(184,588)
Financing activities:
Proceeds from sale of common stock, net of offering costs	0	3,085
Acquisition of treasury shares	(2,239)	(2,694)
Dividends paid to common shareholders	(3,655)	(3,193)
Dividends paid to preferred shareholders	(414)	(414)
Credit availability and debt issuance fees	(587)	(2,460)
Borrowings on debt	245,000	78,024
Repayments of debt	(195,000)	(82,036)
Repayments of finance leases	(5,484)	(5,992)
Net cash provided by (used in) financing activities	37,621	(15,680)
Effect of exchange rates on cash	257	(215)
Net increase (decrease) in cash, cash equivalents and restricted cash and cash equivalents	5,606	(125,273)
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period	28,414	187,139
Cash, cash equivalents and restricted cash and cash equivalents at end of period	34,020	61,866
Significant non-cash investing and financing activities:
Addition of finance lease obligations	6,506	7,008
Recognition of operating lease liabilities and right-of-use assets	22,365	0
Common stock issued for the acquisition of other companies	0	252,544
Payment of accrued compensation in stock	8,274	4,863
Marketable equity securities received for sale of mineral interest	$ 2,257	$ 0

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2017	$ 39	$ 100,926	$ 1,619,816	$ (218,089)	$ (23,373)	$ (18,042)	$ 1,461,277
Net loss				(2,870)			(2,870)
Restricted stock units granted			4,043				4,043
Restricted stock units distributed		270	(270)			(1,386)	(1,386)
Common stock dividends declared				(3,196)			(3,196)
Series B Preferred Stock dividends declared				(414)			(414)
Common stock issued for 401(k) match		195	2,663				2,858
Other comprehensive loss					(3,521)		(3,521)
Common stock issued for cash, net of offering costs		256	2,830				3,086
Common stock issued to directors		40	553				593
Common stock issued to pension plans		468	5,032				5,500
Common stock and warrants issued for purchase of another company		18,819	233,725				252,544
Common stock issued for employee incentive compensation		309	4,554			(1,308)	3,555
Change in accounting for marketable equity securities				1,289	(1,289)
Balance at Sep. 30, 2018	39	121,283	1,872,946	(223,280)	(28,183)	(20,736)	1,722,069
Balance at Jun. 30, 2018	39	101,643	1,628,440	(198,762)	(31,929)	(20,736)	1,478,695
Net loss				(23,184)			(23,184)
Restricted stock units granted			1,638				1,638
Common stock dividends declared				(1,196)			(1,196)
Series B Preferred Stock dividends declared				(138)			(138)
Common stock issued for 401(k) match		57	728				785
Other comprehensive loss					3,746		3,746
Common stock issued for cash, net of offering costs		256	2,830				3,086
Common stock issued to directors		40	553				593
Common stock issued to pension plans		468	5,032				5,500
Common stock and warrants issued for purchase of another company		18,819	233,725				252,544
Balance at Sep. 30, 2018	39	121,283	1,872,946	(223,280)	(28,183)	(20,736)	1,722,069
Balance at Dec. 31, 2018	39	121,956	1,880,481	(248,308)	(42,469)	(20,736)	1,690,963
Net loss				(91,581)			(91,581)
Restricted stock units granted			4,303				4,303
Restricted stock units distributed		291	(291)			(636)	(636)
Common stock dividends declared				(3,655)			(3,655)
Series B Preferred Stock dividends declared				(414)			(414)
Common stock issued for 401(k) match		327	2,425				2,752
Other comprehensive loss					4,511		4,511
Common stock issued to directors		63	392				455
Common stock issued to pension plans		597	3,003				3,600
Adjustment to fair value of warrants issued for purchase of another company			(325)				(325)
Common stock issued for employee incentive compensation		899	7,375			(1,603)	6,671
Balance at Sep. 30, 2019	39	124,133	1,897,363	(343,958)	(37,958)	(22,975)	1,616,644
Balance at Jun. 30, 2019	39	123,701	1,895,617	(323,079)	(34,670)	(22,380)	1,639,228
Net loss				(19,516)			(19,516)
Restricted stock units granted			1,206				1,206
Restricted stock units distributed		291	(291)			(595)	(595)
Common stock dividends declared				(1,225)			(1,225)
Series B Preferred Stock dividends declared				(138)			(138)
Common stock issued for 401(k) match		141	831				972
Other comprehensive loss					(3,288)		(3,288)
Balance at Sep. 30, 2019	$ 39	$ 124,133	$ 1,897,363	$ (343,958)	$ (37,958)	$ (22,975)	$ 1,616,644

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Common Stock [Member]
Restricted stock units distributed, shares (in shares)	1,164,000		1,164,000	1,079,000
Common stock issued for 401(k) match, shares (in shares)	562,000	226,000	1,307,000	778,000
Common stock issued for cash, net of offering costs, shares (in shares)		1,026,000		1,026,000
Common stock issued to directors, shares (in shares)		162,000	253,000	162,000
Common stock issued to pension plans, shares (in shares)		1,871,000	2,384,000	1,871,000
Common stock and warrants issued for purchase of another company, shares (in shares)		75,276,000		75,276,000
Common stock issued for employee incentive compensation , shares (in shares)			3,597,380	1,237,000
Retained Earnings [Member]
Common stock dividends declared, per share (in dollars per share)	$ 0.0025	$ 0.0025	$ 0.0075	$ 0.0075
Preferred stock dividends declared, per share (in dollars per share)	$ 0.875	$ 0.875	$ 2.625	$ 2.625
Common stock issued for cash, net of offering costs, shares (in shares)			0

Note 1 - Basis of Preparation o

Note 1 - Basis of Preparation of Financial Statements	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	1. In the opinion of management, the accompanying unaudited interim condensed consolidated financial statements and notes to the unaudited interim condensed consolidated financial statements contain all adjustments, consisting of normal recurring items and items which are nonrecurring, necessary to present fairly, in all material respects, the financial position of Hecla Mining Company and its consolidated subsidiaries (in this report, "Hecla" or "the Company" or “we” or “our” or “us” refers to Hecla Mining Company and our subsidiaries, unless the context requires otherwise). These unaudited interim condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements and related footnotes as set forth in our annual report filed on Form 10 December 31, 2018, may The results of operations for the periods presented may not may not The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements, the reported amounts of revenues and expenses during the reporting period, and the disclosures of contingent liabilities. Accordingly, ultimate results could differ materially from those estimates.

Note 2 - Investments

Note 2 - Investments	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Investment [Text Block]	Note 2. At September 30, 2019 December 31, 2018, September 30, 2019 December 31, 2018, first nine 2019 2018, first nine 2019, first nine 2019 2018,

Note 3 - Income Taxes

Note 3 - Income Taxes	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 3. Major components of our income tax benefit (provision) for the three nine September 30, 2019 2018 Three Months Ended Nine Months Ended September 30, September 30, 2019 2018 2019 2018 Current: Domestic $ (315 ) $ — $ (317 ) $ (1 ) Foreign (2,467 ) (80 ) (5,260 ) (4,250 ) Total current income tax benefit (provision) (2,782 ) (80 ) (5,577 ) (4,251 ) Deferred: Domestic 2,652 3,778 10,585 3,778 Foreign 1,744 (1,019 ) 15,001 1,957 Total deferred income tax benefit (provision) 4,396 2,759 25,586 5,735 Total income tax benefit (provision) $ 1,614 $ 2,679 $ 20,009 $ 1,484 The current income tax benefits (provisions) for the three nine September 30, 2019 2018 As of September 30, 2019, With the acquisition of Klondex Mines Ltd. ("Klondex") on July 20, 2018 ( Note 13 not three nine September 30, 2019, 382. not For Hecla U.S., we recorded a full valuation allowance in the U.S. in December 2017 September 30, 2019

Note 4 - Commitments, Contingen

Note 4 - Commitments, Contingencies and Obligations	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 4. General We follow GAAP guidance in determining our accruals and disclosures with respect to loss contingencies, and evaluate such accruals and contingencies for each reporting period. Accordingly, estimated losses from loss contingencies are accrued by a charge to income when information available prior to issuance of the financial statements indicates that it is probable that a liability could be incurred and the amount of the loss can be reasonably estimated. Legal expenses associated with the contingency are expensed as incurred. If a loss contingency is not Lucky Friday Water Permit Matters In December 2013, 308 no. 3 December 2015. may Johnny M Mine Area near San Mateo, McKinley County and San Mateo Creek Basin, New Mexico In May 2011, may August 2012, not December 2014 three 1 no 2 3 October 2019, 30 may fourth 2014, October 2019 2020. $5.9 The Johnny M Mine is in an area known as the San Mateo Creek Basin (“SMCB”), which is an approximately 321 not may $5.9 In July 2018, may Carpenter Snow Creek and Barker-Hughesville Sites in Montana In July 2010, 1980s 6 1988. In June 2011, may may In February 2017, April 2017. June December 1983, In August 2018, may not Claim for Indemnification Against CoCa Mines, Inc. In 1991, 2014 2019, 1989 may October 30, 2019, $5 Montanore Project We face several issues in attempting to advance the Montanore project. In October 2018, not 2008, no May 6, 2019, one not two no July 24, 2019, May 1, 2014, September 30, 2019, Litigation Related to Klondex Acquisition Following the announcement of our proposed acquisition of Klondex, Klondex and members of the Klondex board of directors were named as defendants in several putative stockholder class actions brought by purported stockholders of Klondex challenging the proposed merger. The lawsuits were all filed in the United States District Court for the District of Nevada. On December 18, 2018, three No. 3:18 00284 June 15, 2018). The plaintiffs generally claim that Klondex issued a proxy statement that included misstatements or omissions, in violation of sections 14 20 1934, Although it is not On September 11, 2018, not July 2018 On May 24, 2019, one March 19, 2018 May 8, 2019, 10 20 1934 10b 5 second June 19, 2019, Related to the above described class action lawsuits, Hecla has been named as a nominal defendant in a shareholder derivative lawsuit which names as defendants members of Hecla’s board of directors and certain officers. The case was filed on July 12, 2019 10 14 1934 10b 5 Debt As discussed in Note 9 April 12, 2013, 2014, one 2014. May 1 November 1 November 1, 2013. On March 5, 2018, 2018 May 1, 2021 ( May 1 November 1 May 1, 2018. See Note 9 Other Commitments Our contractual obligations as of September 30, 2019 September 30, 2019 Note 9 September 30, 2019, 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 may may no not

Note 5 - Loss Per Common Share

Note 5 - Loss Per Common Share	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Earnings Per Share [Text Block]	Note 5. We are authorized to issue 750,000,000 shares of common stock, $0.25 par value per share. At September 30, 2019, three nine September 30, 2019, three nine September 30, 2018, Diluted loss per share for the three nine September 30, 2019 2018 no For the three nine September 30, 2019 2018, no

Note 6 - Business Segments and

Note 6 - Business Segments and Sales of Products	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	Note 6. We discover, acquire and develop mines and other mineral interests and produce and market concentrates, carbon material and doré containing silver, gold, lead and zinc. We are currently organized and managed in five segments, which represent our operating units: the Greens Creek unit, the Lucky Friday unit, the Casa Berardi unit, the San Sebastian unit and the Nevada Operations unit. The Nevada Operations unit was added as a result of our acquisition of Klondex in July 2018 ( Note 13 General corporate activities not not The following tables present information about our reportable segments for the three nine September 30, 2019 2018 Three Months Ended Nine Months Ended September 30, 2019 2018 2019 2018 Net sales to unaffiliated customers: Greens Creek $ 59,015 $ 65,187 $ 194,542 $ 205,642 Lucky Friday 4,017 (11 ) 11,150 8,253 Casa Berardi 53,453 52,850 139,015 164,501 San Sebastian 15,435 14,129 39,028 40,727 Nevada Operations 29,612 11,494 64,586 11,494 $ 161,532 $ 143,649 $ 448,321 $ 430,617 Income (loss) from operations: Greens Creek $ 17,556 $ 10,705 $ 52,130 $ 59,373 Lucky Friday (3,727 ) (5,404 ) (8,779 ) (14,811 ) Casa Berardi (380 ) (1,146 ) (26,262 ) 3,118 San Sebastian 1,077 (2,381 ) (2,358 ) 2,275 Nevada Operations (8,346 ) (13,741 ) (43,812 ) (13,741 ) Other (11,293 ) (18,409 ) (35,633 ) (50,885 ) $ (5,113 ) $ (30,376 ) $ (64,714 ) $ (14,671 ) The following table presents identifiable assets by reportable segment as of September 30, 2019 December 31, 2018 September 30, 2019 December 31, 2018 Identifiable assets: Greens Creek $ 648,420 $ 637,386 Lucky Friday 438,946 437,499 Casa Berardi 717,631 754,248 San Sebastian 50,549 44,152 Nevada Operations 558,219 581,194 Other 259,413 249,465 $ 2,673,178 $ 2,703,944 Our products consist of metal concentrates and carbon material, which we sell to custom smelters, brokers and third may For sales of metals from refined doré, which we currently have at our Casa Berardi, San Sebastian and Nevada Operations units, 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 doré, 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 containing the agreed-upon metal quantities to the customer. Refining, selling and shipping costs related to sales of doré and metals from doré are recorded to cost of sales as incurred. For carbon sales, 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 our Greens Creek and Lucky Friday units, 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 our Lucky Friday unit 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 our Greens Creek unit and their physical receipt by the customer, and judgment is required in determining when control has been transferred to the customer for those shipments. We have determined the performance obligation is met and title is transferred to the customer upon shipment of concentrate parcels from Greens Creek because, at that time, 1 2 3 4 5 Judgment is also required in identifying the performance obligations for our concentrate sales. 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 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 September 30, 2019, Note 11 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 may Sales of metal concentrates and metal products are made principally to custom smelters, brokers, third Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Greens Creek 37 % 45 % 44 % 48 % Lucky Friday 2 % — % 2 % 2 % Casa Berardi 33 % 37 % 31 % 39 % San Sebastian 10 % 10 % 9 % 9 % Nevada Operations 18 % 8 % 14 % 2 % 100 % 100 % 100 % 100 % Sales of products by metal for the three nine September 30, 2019 2018 Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Silver $ 40,588 $ 38,009 $ 122,392 $ 111,656 Gold 103,889 82,628 261,734 233,308 Lead 7,114 7,552 22,809 27,469 Zinc 15,292 20,990 62,995 78,714 Less: Smelter and refining charges (5,351 ) (5,530 ) (21,609 ) (20,530 ) Sales of products $ 161,532 $ 143,649 $ 448,321 $ 430,617 The following is sales information by geographic area based on the location of smelters and brokers (for concentrate shipments) and location of parent companies (for doré sales to metals traders) for the three nine September 30, 2019 2018 Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Canada $ 88,610 $ 83,723 $ 258,708 $ 266,915 Korea 33,683 35,796 109,184 110,036 Japan 17,339 3,301 34,924 20,971 Netherlands 445 — 16,500 — China — — — 66 United States 20,407 15,807 29,142 24,296 Total, excluding gains/losses on derivative contracts $ 160,484 $ 138,627 $ 448,458 $ 422,284 Sales by significant product type for the three nine September 30, 2019 2018 Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Doré and metals from doré $ 87,525 $ 80,074 $ 231,391 $ 227,812 Carbon 17,745 2,994 27,376 4,273 Lead concentrate 37,685 36,728 122,727 113,211 Zinc concentrate 12,345 14,965 51,876 63,197 Bulk concentrate 5,184 3,866 15,088 13,791 Total, excluding gains/losses on derivative contracts $ 160,484 $ 138,627 $ 448,458 $ 422,284 Sales of products for the three nine September 30, 2019 three nine September 30, 2018 Note 11 Sales of products to significant customers as a percentage of total sales were as follows for the three nine September 30, 2019 2018: Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 CIBC 36 % 26 % 24 % 34 % Scotia 18 % 19 % 26 % 13 % Korea Zinc 9 % 15 % 16 % 22 % Teck Metals Ltd. 3 % 11 % 7 % 11 % Cliveden 12 % — % 4 % — % Trafigura — % 10 % 4 % 3 % Our trade accounts receivable balance related to contracts with customers was $6.2 million at September 30, 2019 December 31, 2018, We have determined our contracts do not We do not not not September 30, 2019 December 31, 2018. In September 2019, two not October 2019. September, September 30. September 30, 2019, The sales and income (loss) from operations amounts reported above include results from our Lucky Friday segment. The Lucky Friday mine is our only operation where some of our employees are subject to a collective bargaining agreement, and the most recent agreement expired on April 30, 2016. February 19, 2017, March 13, 2017 July 2017, first nine 2019 2018, not September 2019, one not may September 30, 2019

Note 7 - Employee Benefit Plans

Note 7 - Employee Benefit Plans	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Pension and Other Postretirement Benefits Disclosure [Text Block]	Note 7. Employee Benefit Plans We sponsor defined benefit pension plans covering substantially all U.S. employees. Net periodic pension cost for the plans consisted of the following for the three nine September 30, 2019 2018 Three Months Ended September 30, 2019 2018 Service cost $ 1,100 $ 1,252 Interest cost 1,620 1,377 Expected return on plan assets (1,496 ) (1,634 ) Amortization of prior service cost 15 15 Amortization of net loss 1,097 931 Net periodic pension cost $ 2,336 $ 1,941 Nine Months Ended September 30, 2019 2018 Service cost $ 3,300 $ 3,756 Interest cost 4,860 4,131 Expected return on plan assets (4,488 ) (4,902 ) Amortization of prior service cost 45 45 Amortization of net loss 3,291 2,793 Net periodic pension cost $ 7,008 $ 5,823 For the three nine September 30, 2019 2018, three nine September 30, 2019, three nine September 30, 2018, In May 2019, not 2019. 2019.

Note 8 - Shareholders' Equity

Note 8 - Shareholders' Equity	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	Note 8. Stock-based Compensation Plans We periodically grant restricted stock unit awards, performance-based shares and shares of common stock to our employees and directors. We measure compensation cost for restricted stock units and stock grants at the closing price of our stock at the time of grant. We measure compensation cost for performance-based grants using a Monte Carlo simulation to estimate their value at grant date. Restricted stock unit and performance-based share grants vest after a specified period with compensation cost amortized over that period. Although we have no may In April 2019, December 31, 2018. April 2019, March 31, 2019. In June 2019, • 2,971,188 restricted stock units, with one third June 2020, one third June 2021, one third June 2022; • 165,764 restricted stock units, with one June 2020 one June 2021; • 63,589 restricted stock units that vest in June 2020. Expense of $2.1 million related to the unit awards discussed above vesting in 2020 twelve 2021 twenty-four 2022 thirty-six In June 2019, three December 31, 2021. thirty Stock-based compensation expense for restricted stock unit and performance-based grants to employees and shares issued to nonemployee directors recorded in the first nine 2019 In connection with the vesting of restricted stock units and other stock grants, employees have in the past, at their election and when permitted by us, chosen to satisfy their minimum tax withholding obligations through net share settlement, pursuant to which the Company withholds the number of shares necessary to satisfy such withholding obligations and pays the obligations in cash. As a result, in the first nine 2019 first nine 2018 Common Stock Dividends In September 2011 February 2012, two 1 2 first Quarterly average realized silver price per ounce Quarterly dividend per share Annualized dividend per share $30 $0.01 $0.04 $35 $0.02 $0.08 $40 $0.03 $0.12 $45 $0.04 $0.16 $50 $0.05 $0.20 On August 5, 2019, September 2019. second 2019 no At-The-Market Equity Distribution Agreement Pursuant to an equity distribution agreement dated February 23, 2016, may not may 1933, 3. September 30, 2019, first nine 2019. Common Stock Repurchase Program On May 8, 2012, may not may not may September 30, 2019, may November 5, 2019, first nine 2019. Warrants As discussed in Note 13 September 30, 2019. April 2032. February 2029.

Note 9 - Debt, Credit Facility

Note 9 - Debt, Credit Facility and Leases	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Debt Disclosure [Text Block]	Note 9. Senior Notes On April 12, 2013, May 1, 2021 144A 1933, 2014, one April 12, 2013, The Senior Notes are recorded net of a 2% initial purchaser discount totaling $10 million at the time of the April 2013 September 30, 2019. May 1 November 1 November 1, 2013. nine September 30, 2019 2018, 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 The Senior Notes became redeemable in whole or in part, at any time and from time to time after May 1, 2016, May 1, 2019, 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. Ressources Québec Notes On March 5, 2018, CAD$40 USD$30.8 2018 May 1, 2021 ( CAD$0.2 May 1 November 1 May 1, 2018. nine September 30, 2019 2018, Credit Facility In July 2018, June 14, 2022, not November 1, 2020, November 1, 2020. July 2019, $250 $250 September 30, 2020 $250 two 4.00:1 third 2019. September 30, 2019, 6.50:1, 6.00:1 fourth 2019. The credit facility is collateralized by the assets of or shares of common stock held in our material subsidiaries, including those owning the Casa Berardi mine and our Nevada operations, and by our joint venture interests holding 100% September 30, 2019: Interest rates: Spread over the London Interbank Offer Rate 2.25 - 4.00% Spread over alternative base rate 1.25 - 2.25% Standby fee per annum on undrawn amounts 0.50 - 1.00% Covenant financial ratios: Senior leverage ratio (debt secured by liens/EBITDA) (1) not more than 2.50:1 Leverage ratio (total debt less unencumbered cash/EBITDA) (2) not more than 6.50:1 Interest coverage ratio (EBITDA/interest expense) not less than 3.00:1 ( 1 ( 2 not 6.00:1 October 1, 2019; ( 5.50:1 January 1, 2020; ( 5.00:1 April 1, 2020; 4.00:1 July 1, 2020. We are also able to obtain letters of credit under the facility, and for any such letters we are required to pay a participation fee of between 2.25% and 3.25% of the amount of the letters of credit based on our total leverage ratio, as well as a fronting fee to each issuing bank of 0.20% annually on the average daily dollar amount of any outstanding letters of credit. There were $38.5 million in letters of credit outstanding as of September 30, 2019. We believe we were in compliance with all covenants under the credit agreement, and had $50.0 million drawn under the agreement, in addition to the $38.5 September 30, 2019. Debt Summary As of September 30, 2019, Twelve-month period ending September 30, Senior Notes RQ Notes Revolving Credit Facility Total 2020 (interest and fees only) $ 34,822 $ 1,414 $ 219 $ 36,455 2021 (principal and interest) 526,813 31,028 — 557,841 2022 (principal) — 50,000 50,000 Total 561,635 32,442 50,219 644,296 Less: interest and fees (55,135 ) (2,238 ) (219 ) (57,592 ) Principal 506,500 30,204 50,000 586,704 Less: unamortized discount (2,086 ) — — (2,086 ) Long-term debt $ 504,414 $ 30,204 $ 50,000 $ 584,618 Finance Leases We have entered into various lease agreements, primarily for equipment at our Greens Creek, Lucky Friday, Casa Berardi and Nevada Operations units, which we have determined to be finance leases. At September 30, 2019, December 31, 2018, September 30, 2019 December 31, 2018, first nine 2019 September 30, 2019, September 30, 2019 At September 30, 2019, Twelve-month period ending September 30, 2020 $ 6,283 2021 5,125 2022 2,818 2023 1,017 Total 15,243 Less: imputed interest (968 ) Net finance lease obligation $ 14,275 Operating Leases We have entered into various lease agreements, primarily for equipment, buildings and other facilities, and land at our operating units 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 September 30, 2019, September 30, 2019, September 30, 2019. first nine 2019 September 30, 2019. September 30, 2019 At September 30, 2019, Twelve-month period ending September 30, 2020 $ 6,570 2021 3,629 2022 2,808 2023 2,250 2024 862 More than 5 years 1,274 Total 17,393 Effect of discounting (63 ) Operating lease liability $ 17,330

Note 10 - Developments in Accou

Note 10 - Developments in Accounting Pronouncements	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	Note 10. Accounting Standards Updates Adopted In February 2016, No. 2016 02 842 December 15, 2018, January 1, 2019, $22.4 No. 2016 02, not twelve not not Note 9 In August 2017, No. 2017 12 815 December 15, 2018, January 1, 2019 not In February 2018, No. 2018 02 220 December 2017. December 15, 2018. not January 1, 2019 not In June 2018, No. 2018 07 718 718 December 15, 2018, January 1, 2019 not Accounting Standards Updates to Become Effective in Future Periods In August 2018, No. 2018 13 820 December 15, 2019, In August 2018, No. 2018 14 715 20 two December 15, 2020,

Note 11 - Derivative Instrument

Note 11 - Derivative Instruments	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	Note 11. Foreign Currency Our wholly-owned subsidiaries owning the Casa Berardi and San Sebastian mines are USD-functional entities which routinely incur expenses denominated in CAD and Mexican pesos ("MXN"), respectively, and such expenses expose us to exchange rate fluctuations between the USD and CAD and MXN. In April 2016, October 2016, September 30, 2019, CAD$300.7 US$231.5 MXN$37.3 USD$1.8 2019 2023 2019 2020 five may As of September 30, 2019, • a current asset of $0.1 million, which is included in other current assets; • a current liability of $1.4 million, which is included in other current liabilities; and • a non-current liability of $2.9 million, which is included in other non-current liabilities. Net unrealized losses of approximately $4.3 million related to the effective portion of the hedges were included in accumulated other comprehensive loss as of September 30, 2019. September 30, 2019 twelve nine September 30, 2019. nine September 30, 2019. Metals Prices We may five 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 Greens Creek concentrate shipments between the time of shipment and final settlement. In addition, we use financially-settled forward contracts to manage the exposure to changes in prices of zinc and lead (but not September 30, 2019 December 31, 2018: September 30, 2019 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 2019 settlements 828 3 16,204 2,921 $ 18.66 $ 1,537 $ 1.09 $ 0.90 Contracts on forecasted sales 2019 settlements — — — 4,409 N/A N/A N/A $ 0.95 2020 settlements — — — 4,960 N/A N/A N/A $ 0.96 December 31, 2018 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 2019 settlements 842 4 18,450 2,700 $ 14.69 $ 1,260 $ 1.15 $ 0.89 In June 2019, not September 30, 2019: September 30, 2019 Ounces under contract (in 000's) Average price per ounce Silver Gold Silver Gold (ounces) (ounces) (ounces) (ounces) Contracts on forecasted sales 2019 settlements 2,493 89 $ 15.08 $ 1,400 2020 settlements 2,634 51 $ 15.00 $ 1,400 In October 2019, 2020 These forward and put option contracts are not We recorded the following balances as of September 30, 2019 • a current asset of $1.1 million, which is included in other current assets and is net of $0.7 million for contracts in a fair value liability position; and • a current liability of $7.1 million, which is included in other current liabilities and is net of $0.4 million for contracts in a fair value current asset position. We recognized a $0.1 million net loss during the first nine 2019 We recognized a $2.7 million net gain during the first nine 2019 first nine 2019 third 2019 2018, not 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 September 30, 2019, not September 30, 2019, September 30, 2019,

Note 12 - Fair Value Measuremen

Note 12 - Fair Value Measurement	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Fair Value Disclosures [Text Block]	Note 12. Accounting guidance has established a hierarchy for inputs used to measure assets and liabilities at fair value on a recurring basis. The three Level 1: Level 2: Level 3: The table below sets forth our assets and liabilities 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 (in thousands). Description Balance at September 30, 2019 Balance at December 31, 2018 Input Hierarchy Level Assets: Cash and cash equivalents: Money market funds and other bank deposits $ 32,995 $ 27,389 Level 1 Available for sale securities: Equity securities – mining industry 7,349 6,583 Level 1 Trade accounts receivable: Receivables from provisional concentrate sales 6,222 4,184 Level 2 Restricted cash balances: Certificates of deposit and other deposits 1,025 1,025 Level 1 Derivative contracts: Foreign exchange contracts 143 23 Level 2 Metal forward and put option contracts 1,092 209 Level 2 Total assets $ 48,826 $ 39,413 Liabilities: Derivative contracts: Foreign exchange contracts $ 4,240 $ 8,595 Level 2 Metal forward and put option contracts 7,081 373 Level 2 Total liabilities $ 11,321 $ 8,968 Cash and cash equivalents consist primarily of money market funds and are valued at cost, which approximates fair value, and a small portion consists of municipal bonds having maturities of less than 90 Current and non-current restricted cash balances consist primarily of certificates of deposit, U.S. Treasury securities, and other deposits and are valued at cost, which approximates fair value. Our non-current available for sale securities 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 and metals sold from doré 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 customer arrival 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. The embedded derivative contained in our concentrate sales is adjusted to fair market value through earnings each period prior to final settlement. We use financially-settled forward contracts to manage exposure to changes in the exchange rate between USD and CAD and MXN, and the impact on CAD- and MXN-denominated operating costs incurred at our Casa Berardi and San Sebastian units (see Note 11 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 Note 11 not Our Senior Notes, which were recorded at their carrying value, net of unamortized initial purchaser discount, of $504.4 million at September 30, 2019, September 30, 2019. 1 Note 9

Note 13 - Acquisition of Klonde

Note 13 - Acquisition of Klondex Mines Ltd.	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Business Combination Disclosure [Text Block]	Note 13. On July 20, 2018, three 110 US$0.8411 April 2032, February 2029. The following summarizes the allocation of purchase price to the fair value of assets acquired and liabilities assumed as of the date of acquisition (in thousands): Consideration: Cash payments $ 161,704 Hecla stock issued (75,276,176 shares at $3.22 per share) 242,389 Hecla warrants issued 9,830 Total consideration $ 413,923 Fair value of net assets acquired: Assets: Cash $ 12,874 Accounts receivable 3,453 Inventory - supplies 6,565 Inventory - finished goods, in-process material and stockpiled ore 10,075 Other current assets 2,583 Properties, plants, equipment and mineral interests 510,015 Non-current investments 1,596 Non-current restricted cash and investments 9,504 Total assets 556,665 Liabilities: Accounts payable and accrued liabilities 17,799 Accrued payroll and related benefits 8,245 Accrued taxes 421 Lease liability 2,080 Debt 35,086 Asset retirement obligation 19,571 Deferred tax liability 59,540 Total liabilities 142,742 Net assets $ 413,923 The allocation of purchase price above was finalized in the second 2019, In the second 2019, not June 30, 2019. twelve first 2021; not third Our estimates of undiscounted future cash flows for our Nevada assets are most sensitive to (i) changes in metal prices and (ii) the timely resumption of previously-anticipated production levels. Our carrying value assessment assumed a weighted-average gold price of approximately $1,345 per ounce. A sensitivity analysis was performed, and decreasing the weighted-average gold price assumption to below approximately $1,280 per ounce, with all other variables held constant, would have resulted in estimated undiscounted future cash flows that were less than the carrying value of the Nevada assets as of June 30, 2019. third 2019, third no third 2019 may no September 30, 2019 Value beyond proven and probable reserves $ 382.2 Mineral properties and development 57.7 Mills and tailings facilities 46.4 Buildings and equipment 33.0 Land 2.9 Asset retirement obligation asset 2.6 Total $ 524.8 See Part II, Item 1A 10 June 30, 2019

Note 14 - Guarantor Subsidiarie

Note 14 - Guarantor Subsidiaries	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Guarantor Subsidiaries [Text Block]	Note 14. Presented below are Hecla’s unaudited interim condensed consolidating financial statements as required by Rule 3 10 X 1934, Note 9 April 12, 2013, January 3, 2014. March 5, 2018. The unaudited interim condensed consolidating financial statements below have been prepared from our financial information on the same basis of accounting as the unaudited interim condensed consolidated financial statements set forth elsewhere in this report. Investments in the subsidiaries are accounted for under the equity method. Accordingly, the entries necessary to consolidate Hecla, the Guarantors, and our non-guarantor subsidiaries are reflected in the intercompany eliminations column. In the course of preparing consolidated financial statements, we eliminate the effects of various transactions conducted between Hecla and its subsidiaries and among the subsidiaries. While valid at an individual subsidiary level, such activities are eliminated in consolidation because, when taken as a whole, they do not third • Investments in subsidiaries • Capital contributions not not • Debt. • Dividends. • Deferred taxes two may not Separate financial statements of the Guarantors are not 1 2 3 4 5 Unaudited Interim Condensed Consolidating Balance Sheets As of September 30, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated (in thousands) Assets Cash and cash equivalents $ 18,983 $ 9,608 $ 4,404 $ — $ 32,995 Other current assets 7,031 113,542 25,430 (72 ) 145,931 Properties, plants, equipment and mineral interests - net 1,913 2,438,137 15,461 — 2,455,511 Intercompany receivable (payable) 143,248 (709,012 ) 149,616 416,148 — Investments in subsidiaries 1,499,318 — — (1,499,318 ) — Other non-current assets 284,380 25,380 (120,645 ) (150,374 ) 38,741 Total assets $ 1,954,873 $ 1,877,655 $ 74,266 $ (1,233,616 ) $ 2,673,178 Liabilities and Stockholders' Equity Current liabilities $ (298,754 ) $ 165,564 $ 10,704 $ 268,329 $ 145,843 Long-term debt 584,618 19,159 876 — 604,653 Non-current portion of accrued reclamation — 95,674 8,147 — 103,821 Non-current deferred tax liability — 146,069 — (2,627 ) 143,442 Other non-current liabilities 52,365 5,393 1,017 — 58,775 Shareholders' equity 1,616,644 1,445,796 53,522 (1,499,318 ) 1,616,644 Total liabilities and stockholders' equity $ 1,954,873 $ 1,877,655 $ 74,266 $ (1,233,616 ) $ 2,673,178 As of December 31, 2018 Parent Guarantors Non- Guarantors Eliminations Consolidated Revised Revised (in thousands) Assets Cash and cash equivalents $ 6,266 $ 17,233 $ 3,890 $ — $ 27,389 Other current assets 6,388 105,900 24,542 (69 ) 136,761 Properties, plants, equipment and mineral interests, net 1,913 2,503,467 14,624 — 2,520,004 Intercompany receivable (payable) 171,908 (546,374 ) 152,031 222,435 — Investments in subsidiaries 1,577,869 — — (1,577,869 ) — Other non-current assets 276,641 10,906 (124,845 ) (142,912 ) 19,790 Total assets $ 2,040,985 $ 2,091,132 $ 70,242 $ (1,498,415 ) $ 2,703,944 Liabilities and Stockholders' Equity Current liabilities $ (233,824 ) $ 157,640 $ 7,145 $ 205,233 $ 136,194 Long-term debt 532,799 143,858 1 (135,988 ) 540,670 Non-current portion of accrued reclamation — 100,445 4,534 — 104,979 Non-current deferred tax liability — 163,328 — 10,209 173,537 Other non-current liabilities 51,047 5,641 913 — 57,601 Stockholders' equity 1,690,963 1,520,220 57,649 (1,577,869 ) 1,690,963 Total liabilities and stockholders' equity $ 2,040,985 $ 2,091,132 $ 70,242 $ (1,498,415 ) $ 2,703,944 Unaudited Interim Condensed Consolidating Statements of Operations Three Months Ended September 30, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated (in thousands) Revenues $ 1,049 $ 144,999 $ 15,484 $ — $ 161,532 Cost of sales (472 ) (85,829 ) (9,577 ) — (95,878 ) Depreciation, depletion, amortization — (47,448 ) (3,326 ) — (50,774 ) General and administrative (2,951 ) (4,722 ) (305 ) — (7,978 ) Exploration and pre-development (3 ) (4,315 ) (1,371 ) — (5,689 ) Research and development — 37 (90 ) — (53 ) Loss on derivative contracts (4,718 ) — — — (4,718 ) Foreign exchange gain (loss) (3,201 ) 5,129 (1,155 ) — 773 Lucky Friday suspension-related costs — (3,722 ) — — (3,722 ) Acquisition costs (100 ) (83 ) — — (183 ) Equity in earnings of subsidiaries (6,761 ) — — 6,761 — Other (expense) income (2,359 ) (9,930 ) 1,606 (3,757 ) (14,440 ) Income (loss) before income taxes (19,516 ) (5,884 ) 1,266 3,004 (21,130 ) (Provision) benefit from income taxes — (625 ) (1,518 ) 3,757 1,614 Net income (loss) (19,516 ) (6,509 ) (252 ) 6,761 (19,516 ) Preferred stock dividends (138 ) — — — (138 ) Income (loss) applicable to common shareholders (19,654 ) (6,509 ) (252 ) 6,761 (19,654 ) Net income (loss) (19,516 ) (6,509 ) (252 ) 6,761 (19,516 ) Changes in comprehensive income (loss) (3,288 ) — — — (3,288 ) Comprehensive income (loss) $ (22,804 ) $ (6,509 ) $ (252 ) $ 6,761 $ (22,804 ) Nine Months Ended September 30, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated (in thousands) Revenues $ (136 ) $ 409,339 $ 39,118 $ — $ 448,321 Cost of sales (1,190 ) (280,397 ) (29,615 ) — (311,202 ) Depreciation, depletion, amortization — (132,104 ) (6,934 ) — (139,038 ) General and administrative (12,110 ) (13,571 ) (1,174 ) — (26,855 ) Exploration and pre-development (22 ) (10,645 ) (5,424 ) — (16,091 ) Research and development — (521 ) (93 ) — (614 ) Loss on derivative contracts (2,719 ) — — — (2,719 ) Foreign exchange gain (loss) 7,820 (14,636 ) 75 — (6,741 ) Lucky Friday suspension-related costs — (8,766 ) — — (8,766 ) Acquisition costs (221 ) (219 ) (153 ) — (593 ) Equity in earnings of subsidiaries (77,563 ) — — 77,563 — Other (expense) income (5,438 ) (31,573 ) 2,308 (12,589 ) (47,292 ) Income (loss) before income taxes (91,579 ) (83,093 ) (1,892 ) 64,974 (111,590 ) (Provision) benefit from income taxes (2 ) 6,864 558 12,589 20,009 Net income (loss) (91,581 ) (76,229 ) (1,334 ) 77,563 (91,581 ) Preferred stock dividends (414 ) — — — (414 ) Income (loss) applicable to common shareholders (91,995 ) (76,229 ) (1,334 ) 77,563 (91,995 ) Net income (loss) (91,581 ) (76,229 ) (1,334 ) 77,563 (91,581 ) Changes in comprehensive income (loss) 4,511 — — — 4,511 Comprehensive income (loss) $ (87,070 ) $ (76,229 ) $ (1,334 ) $ 77,563 $ (87,070 ) Three Months Ended September 30, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Revised Revised (in thousands) Revenues $ 5,020 $ 124,497 $ 14,132 $ — $ 143,649 Cost of sales (157 ) (80,876 ) (12,576 ) — (93,609 ) Depreciation, depletion, amortization — (41,669 ) (1,795 ) — (43,464 ) General and administrative (4,802 ) (5,082 ) (443 ) — (10,327 ) Exploration and pre-development (1 ) (11,227 ) (2,378 ) — (13,606 ) Research and development — (732 ) (537 ) — (1,269 ) Gain on derivative contracts 19,460 — — — 19,460 Foreign exchange gain (loss) 4,640 (7,629 ) 777 — (2,212 ) Lucky Friday suspension costs — (6,519 ) — — (6,519 ) Acquisition costs (5,741 ) (386 ) (12 ) — (6,139 ) Equity in earnings of subsidiaries (54,618 ) — — 54,618 — Other expense 13,016 (4,756 ) (262 ) (19,825 ) (11,827 ) Income (loss) before income taxes (23,183 ) (34,379 ) (3,094 ) 34,793 (25,863 ) (Provision) benefit from income taxes (1 ) (17,530 ) 385 19,825 2,679 Net income (loss) (23,184 ) (51,909 ) (2,709 ) 54,618 (23,184 ) Preferred stock dividends (138 ) — — — (138 ) Income (loss) applicable to common shareholders (23,322 ) (51,909 ) (2,709 ) 54,618 (23,322 ) Net income (loss) (23,184 ) (51,909 ) (2,709 ) 54,618 (23,184 ) Changes in comprehensive income (loss) 3,746 — — — 3,746 Comprehensive income (loss) $ (19,438 ) $ (51,909 ) $ (2,709 ) $ 54,618 $ (19,438 ) Nine Months Ended September 30, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Revised Revised (in thousands) Revenues $ 8,332 $ 381,556 $ 40,729 $ — $ 430,617 Cost of sales 245 (219,497 ) (27,666 ) — (246,918 ) Depreciation, depletion, amortization — (99,749 ) (3,586 ) — (103,335 ) General and administrative (13,250 ) (13,247 ) (1,352 ) — (27,849 ) Exploration and pre-development (128 ) (22,571 ) (8,525 ) — (31,224 ) Research and development — (3,702 ) (1,340 ) — (5,042 ) Gain/(loss) on derivative contracts 40,271 — — — 40,271 Foreign exchange gain (loss) (9,795 ) 12,230 421 — 2,856 Lucky Friday suspension costs — (18,337 ) — — (18,337 ) Acquisition costs (9,041 ) (454 ) (161 ) — (9,656 ) Equity in earnings of subsidiaries (31,105 ) — — 31,105 — Other (expense) income 11,602 (19,034 ) 722 (29,027 ) (35,737 ) Income (loss) before income taxes (2,869 ) (2,805 ) (758 ) 2,078 (4,354 ) (Provision) benefit from income taxes (1 ) (26,348 ) (1,194 ) 29,027 1,484 Net income (loss) (2,870 ) (29,153 ) (1,952 ) 31,105 (2,870 ) Preferred stock dividends (414 ) — — — (414 ) Income (loss) applicable to common shareholders (3,284 ) (29,153 ) (1,952 ) 31,105 (3,284 ) Net income (loss) (2,870 ) (29,153 ) (1,952 ) 31,105 (2,870 ) Changes in comprehensive income (loss) (3,520 ) 38 — (38 ) (3,520 ) Comprehensive income (loss) $ (6,390 ) $ (29,115 ) $ (1,952 ) $ 31,067 $ (6,390 ) Unaudited Interim Condensed Consolidating Statements of Cash Flows Nine Months Ended September 30, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated (in thousands) Cash flows from operating activities $ (140,110 ) $ 92,042 $ (15,242 ) $ 126,919 $ 63,609 Cash flows from investing activities: Additions to properties, plants, equipment and mineral interests — (56,329 ) (41,009 ) — (97,338 ) Other investing activities, net 72,128 42 1,415 (72,128 ) 1,457 Cash flows from financing activities: Dividends paid to shareholders (4,070 ) — — — (4,070 ) Borrowings on debt 245,000 — — — 245,000 Payments on debt (195,000 ) (4,965 ) (519 ) — (200,484 ) Other financing activity, net 34,769 (38,672 ) 55,869 (54,791 ) (2,825 ) Effect of exchange rates on cash — 257 — — 257 Changes in cash, cash equivalents and restricted cash and cash equivalents 12,717 (7,625 ) 514 — 5,606 Beginning cash, cash equivalents and restricted cash and cash equivalents 6,266 18,258 3,890 — 28,414 Ending cash, cash equivalents and restricted cash and cash equivalents $ 18,983 $ 10,633 $ 4,404 $ — $ 34,020 Nine Months Ended September 30, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Revised Revised (in thousands) Cash flows from operating activities $ (29,868 ) $ 88,853 $ (40,161 ) $ 56,386 $ 75,210 Cash flows from investing activities: Additions to properties, plants, equipment and mineral interests 20,710 (101,147 ) (2,848 ) — (83,285 ) Acquisitions of other companies, net of cash acquired (139,326 ) — — (139,326 ) Other investing activities, net (398,101 ) 4,309 — 431,815 38,023 Cash flows from financing activities: Dividends paid to shareholders (3,607 ) — — — (3,607 ) Borrowings on debt 78,024 — — — 78,024 Payments on debt (47,000 ) (41,028 ) — — (88,028 ) Other financing activity, net 443,372 26,051 16,709 (488,201 ) (2,069 ) Effect of exchange rates on cash — (215 ) — (215 ) Changes in cash, cash equivalents and restricted cash and cash equivalents (75,796 ) (23,177 ) (26,300 ) — (125,273 ) Beginning cash, cash equivalents and restricted cash and cash equivalents 103,877 46,619 36,643 — 187,139 Ending cash, cash equivalents and restricted cash and cash equivalents $ 28,081 $ 23,442 $ 10,343 $ — $ 61,866

Note 3 - Income Taxes (Tables)

Note 3 - Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Three Months Ended Nine Months Ended September 30, September 30, 2019 2018 2019 2018 Current: Domestic $ (315 ) $ — $ (317 ) $ (1 ) Foreign (2,467 ) (80 ) (5,260 ) (4,250 ) Total current income tax benefit (provision) (2,782 ) (80 ) (5,577 ) (4,251 ) Deferred: Domestic 2,652 3,778 10,585 3,778 Foreign 1,744 (1,019 ) 15,001 1,957 Total deferred income tax benefit (provision) 4,396 2,759 25,586 5,735 Total income tax benefit (provision) $ 1,614 $ 2,679 $ 20,009 $ 1,484

Note 6 - Business Segments an_2

Note 6 - Business Segments and Sales of Products (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Three Months Ended Nine Months Ended September 30, 2019 2018 2019 2018 Net sales to unaffiliated customers: Greens Creek $ 59,015 $ 65,187 $ 194,542 $ 205,642 Lucky Friday 4,017 (11 ) 11,150 8,253 Casa Berardi 53,453 52,850 139,015 164,501 San Sebastian 15,435 14,129 39,028 40,727 Nevada Operations 29,612 11,494 64,586 11,494 $ 161,532 $ 143,649 $ 448,321 $ 430,617 Income (loss) from operations: Greens Creek $ 17,556 $ 10,705 $ 52,130 $ 59,373 Lucky Friday (3,727 ) (5,404 ) (8,779 ) (14,811 ) Casa Berardi (380 ) (1,146 ) (26,262 ) 3,118 San Sebastian 1,077 (2,381 ) (2,358 ) 2,275 Nevada Operations (8,346 ) (13,741 ) (43,812 ) (13,741 ) Other (11,293 ) (18,409 ) (35,633 ) (50,885 ) $ (5,113 ) $ (30,376 ) $ (64,714 ) $ (14,671 ) September 30, 2019 December 31, 2018 Identifiable assets: Greens Creek $ 648,420 $ 637,386 Lucky Friday 438,946 437,499 Casa Berardi 717,631 754,248 San Sebastian 50,549 44,152 Nevada Operations 558,219 581,194 Other 259,413 249,465 $ 2,673,178 $ 2,703,944
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Greens Creek 37 % 45 % 44 % 48 % Lucky Friday 2 % — % 2 % 2 % Casa Berardi 33 % 37 % 31 % 39 % San Sebastian 10 % 10 % 9 % 9 % Nevada Operations 18 % 8 % 14 % 2 % 100 % 100 % 100 % 100 %
Revenue from External Customers by Products and Services [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Silver $ 40,588 $ 38,009 $ 122,392 $ 111,656 Gold 103,889 82,628 261,734 233,308 Lead 7,114 7,552 22,809 27,469 Zinc 15,292 20,990 62,995 78,714 Less: Smelter and refining charges (5,351 ) (5,530 ) (21,609 ) (20,530 ) Sales of products $ 161,532 $ 143,649 $ 448,321 $ 430,617 Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Doré and metals from doré $ 87,525 $ 80,074 $ 231,391 $ 227,812 Carbon 17,745 2,994 27,376 4,273 Lead concentrate 37,685 36,728 122,727 113,211 Zinc concentrate 12,345 14,965 51,876 63,197 Bulk concentrate 5,184 3,866 15,088 13,791 Total, excluding gains/losses on derivative contracts $ 160,484 $ 138,627 $ 448,458 $ 422,284
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Canada $ 88,610 $ 83,723 $ 258,708 $ 266,915 Korea 33,683 35,796 109,184 110,036 Japan 17,339 3,301 34,924 20,971 Netherlands 445 — 16,500 — China — — — 66 United States 20,407 15,807 29,142 24,296 Total, excluding gains/losses on derivative contracts $ 160,484 $ 138,627 $ 448,458 $ 422,284
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 CIBC 36 % 26 % 24 % 34 % Scotia 18 % 19 % 26 % 13 % Korea Zinc 9 % 15 % 16 % 22 % Teck Metals Ltd. 3 % 11 % 7 % 11 % Cliveden 12 % — % 4 % — % Trafigura — % 10 % 4 % 3 %

Note 7 - Employee Benefit Pla_2

Note 7 - Employee Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Net Benefit Costs [Table Text Block]	Three Months Ended September 30, 2019 2018 Service cost $ 1,100 $ 1,252 Interest cost 1,620 1,377 Expected return on plan assets (1,496 ) (1,634 ) Amortization of prior service cost 15 15 Amortization of net loss 1,097 931 Net periodic pension cost $ 2,336 $ 1,941 Nine Months Ended September 30, 2019 2018 Service cost $ 3,300 $ 3,756 Interest cost 4,860 4,131 Expected return on plan assets (4,488 ) (4,902 ) Amortization of prior service cost 45 45 Amortization of net loss 3,291 2,793 Net periodic pension cost $ 7,008 $ 5,823

Note 8 - Shareholders' Equity (

Note 8 - Shareholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Potential Per Share Dividend Amounts Quarterly Price Levels [Table Text Block]	Quarterly average realized silver price per ounce Quarterly dividend per share Annualized dividend per share $30 $0.01 $0.04 $35 $0.02 $0.08 $40 $0.03 $0.12 $45 $0.04 $0.16 $50 $0.05 $0.20

Note 9 - Debt, Credit Facilit_2

Note 9 - Debt, Credit Facility and Leases (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Line of Credit Facilities [Table Text Block]	Interest rates: Spread over the London Interbank Offer Rate 2.25 - 4.00% Spread over alternative base rate 1.25 - 2.25% Standby fee per annum on undrawn amounts 0.50 - 1.00% Covenant financial ratios: Senior leverage ratio (debt secured by liens/EBITDA) (1) not more than 2.50:1 Leverage ratio (total debt less unencumbered cash/EBITDA) (2) not more than 6.50:1 Interest coverage ratio (EBITDA/interest expense) not less than 3.00:1
Schedule of Maturities of Long-term Debt [Table Text Block]	Twelve-month period ending September 30, Senior Notes RQ Notes Revolving Credit Facility Total 2020 (interest and fees only) $ 34,822 $ 1,414 $ 219 $ 36,455 2021 (principal and interest) 526,813 31,028 — 557,841 2022 (principal) — 50,000 50,000 Total 561,635 32,442 50,219 644,296 Less: interest and fees (55,135 ) (2,238 ) (219 ) (57,592 ) Principal 506,500 30,204 50,000 586,704 Less: unamortized discount (2,086 ) — — (2,086 ) Long-term debt $ 504,414 $ 30,204 $ 50,000 $ 584,618
Finance Lease, Liability, Maturity [Table Text Block]	Twelve-month period ending September 30, 2020 $ 6,283 2021 5,125 2022 2,818 2023 1,017 Total 15,243 Less: imputed interest (968 ) Net finance lease obligation $ 14,275
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Twelve-month period ending September 30, 2020 $ 6,570 2021 3,629 2022 2,808 2023 2,250 2024 862 More than 5 years 1,274 Total 17,393 Effect of discounting (63 ) Operating lease liability $ 17,330

Note 11 - Derivative Instrume_2

Note 11 - Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]	September 30, 2019 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 2019 settlements 828 3 16,204 2,921 $ 18.66 $ 1,537 $ 1.09 $ 0.90 Contracts on forecasted sales 2019 settlements — — — 4,409 N/A N/A N/A $ 0.95 2020 settlements — — — 4,960 N/A N/A N/A $ 0.96 December 31, 2018 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 2019 settlements 842 4 18,450 2,700 $ 14.69 $ 1,260 $ 1.15 $ 0.89 September 30, 2019 Ounces under contract (in 000's) Average price per ounce Silver Gold Silver Gold (ounces) (ounces) (ounces) (ounces) Contracts on forecasted sales 2019 settlements 2,493 89 $ 15.08 $ 1,400 2020 settlements 2,634 51 $ 15.00 $ 1,400

Note 12 - Fair Value Measurem_2

Note 12 - Fair Value Measurement (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Description Balance at September 30, 2019 Balance at December 31, 2018 Input Hierarchy Level Assets: Cash and cash equivalents: Money market funds and other bank deposits $ 32,995 $ 27,389 Level 1 Available for sale securities: Equity securities – mining industry 7,349 6,583 Level 1 Trade accounts receivable: Receivables from provisional concentrate sales 6,222 4,184 Level 2 Restricted cash balances: Certificates of deposit and other deposits 1,025 1,025 Level 1 Derivative contracts: Foreign exchange contracts 143 23 Level 2 Metal forward and put option contracts 1,092 209 Level 2 Total assets $ 48,826 $ 39,413 Liabilities: Derivative contracts: Foreign exchange contracts $ 4,240 $ 8,595 Level 2 Metal forward and put option contracts 7,081 373 Level 2 Total liabilities $ 11,321 $ 8,968

Note 13 - Acquisition of Klon_2

Note 13 - Acquisition of Klondex Mines Ltd. (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	Consideration: Cash payments $ 161,704 Hecla stock issued (75,276,176 shares at $3.22 per share) 242,389 Hecla warrants issued 9,830 Total consideration $ 413,923 Fair value of net assets acquired: Assets: Cash $ 12,874 Accounts receivable 3,453 Inventory - supplies 6,565 Inventory - finished goods, in-process material and stockpiled ore 10,075 Other current assets 2,583 Properties, plants, equipment and mineral interests 510,015 Non-current investments 1,596 Non-current restricted cash and investments 9,504 Total assets 556,665 Liabilities: Accounts payable and accrued liabilities 17,799 Accrued payroll and related benefits 8,245 Accrued taxes 421 Lease liability 2,080 Debt 35,086 Asset retirement obligation 19,571 Deferred tax liability 59,540 Total liabilities 142,742 Net assets $ 413,923
Property, Plant and Equipment [Table Text Block]	Value beyond proven and probable reserves $ 382.2 Mineral properties and development 57.7 Mills and tailings facilities 46.4 Buildings and equipment 33.0 Land 2.9 Asset retirement obligation asset 2.6 Total $ 524.8

Note 14 - Guarantor Subsidiar_2

Note 14 - Guarantor Subsidiaries (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Condensed Balance Sheet [Table Text Block]	As of September 30, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated (in thousands) Assets Cash and cash equivalents $ 18,983 $ 9,608 $ 4,404 $ — $ 32,995 Other current assets 7,031 113,542 25,430 (72 ) 145,931 Properties, plants, equipment and mineral interests - net 1,913 2,438,137 15,461 — 2,455,511 Intercompany receivable (payable) 143,248 (709,012 ) 149,616 416,148 — Investments in subsidiaries 1,499,318 — — (1,499,318 ) — Other non-current assets 284,380 25,380 (120,645 ) (150,374 ) 38,741 Total assets $ 1,954,873 $ 1,877,655 $ 74,266 $ (1,233,616 ) $ 2,673,178 Liabilities and Stockholders' Equity Current liabilities $ (298,754 ) $ 165,564 $ 10,704 $ 268,329 $ 145,843 Long-term debt 584,618 19,159 876 — 604,653 Non-current portion of accrued reclamation — 95,674 8,147 — 103,821 Non-current deferred tax liability — 146,069 — (2,627 ) 143,442 Other non-current liabilities 52,365 5,393 1,017 — 58,775 Shareholders' equity 1,616,644 1,445,796 53,522 (1,499,318 ) 1,616,644 Total liabilities and stockholders' equity $ 1,954,873 $ 1,877,655 $ 74,266 $ (1,233,616 ) $ 2,673,178 As of December 31, 2018 Parent Guarantors Non- Guarantors Eliminations Consolidated Revised Revised (in thousands) Assets Cash and cash equivalents $ 6,266 $ 17,233 $ 3,890 $ — $ 27,389 Other current assets 6,388 105,900 24,542 (69 ) 136,761 Properties, plants, equipment and mineral interests, net 1,913 2,503,467 14,624 — 2,520,004 Intercompany receivable (payable) 171,908 (546,374 ) 152,031 222,435 — Investments in subsidiaries 1,577,869 — — (1,577,869 ) — Other non-current assets 276,641 10,906 (124,845 ) (142,912 ) 19,790 Total assets $ 2,040,985 $ 2,091,132 $ 70,242 $ (1,498,415 ) $ 2,703,944 Liabilities and Stockholders' Equity Current liabilities $ (233,824 ) $ 157,640 $ 7,145 $ 205,233 $ 136,194 Long-term debt 532,799 143,858 1 (135,988 ) 540,670 Non-current portion of accrued reclamation — 100,445 4,534 — 104,979 Non-current deferred tax liability — 163,328 — 10,209 173,537 Other non-current liabilities 51,047 5,641 913 — 57,601 Stockholders' equity 1,690,963 1,520,220 57,649 (1,577,869 ) 1,690,963 Total liabilities and stockholders' equity $ 2,040,985 $ 2,091,132 $ 70,242 $ (1,498,415 ) $ 2,703,944
Condensed Income Statement [Table Text Block]	Three Months Ended September 30, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated (in thousands) Revenues $ 1,049 $ 144,999 $ 15,484 $ — $ 161,532 Cost of sales (472 ) (85,829 ) (9,577 ) — (95,878 ) Depreciation, depletion, amortization — (47,448 ) (3,326 ) — (50,774 ) General and administrative (2,951 ) (4,722 ) (305 ) — (7,978 ) Exploration and pre-development (3 ) (4,315 ) (1,371 ) — (5,689 ) Research and development — 37 (90 ) — (53 ) Loss on derivative contracts (4,718 ) — — — (4,718 ) Foreign exchange gain (loss) (3,201 ) 5,129 (1,155 ) — 773 Lucky Friday suspension-related costs — (3,722 ) — — (3,722 ) Acquisition costs (100 ) (83 ) — — (183 ) Equity in earnings of subsidiaries (6,761 ) — — 6,761 — Other (expense) income (2,359 ) (9,930 ) 1,606 (3,757 ) (14,440 ) Income (loss) before income taxes (19,516 ) (5,884 ) 1,266 3,004 (21,130 ) (Provision) benefit from income taxes — (625 ) (1,518 ) 3,757 1,614 Net income (loss) (19,516 ) (6,509 ) (252 ) 6,761 (19,516 ) Preferred stock dividends (138 ) — — — (138 ) Income (loss) applicable to common shareholders (19,654 ) (6,509 ) (252 ) 6,761 (19,654 ) Net income (loss) (19,516 ) (6,509 ) (252 ) 6,761 (19,516 ) Changes in comprehensive income (loss) (3,288 ) — — — (3,288 ) Comprehensive income (loss) $ (22,804 ) $ (6,509 ) $ (252 ) $ 6,761 $ (22,804 ) Nine Months Ended September 30, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated (in thousands) Revenues $ (136 ) $ 409,339 $ 39,118 $ — $ 448,321 Cost of sales (1,190 ) (280,397 ) (29,615 ) — (311,202 ) Depreciation, depletion, amortization — (132,104 ) (6,934 ) — (139,038 ) General and administrative (12,110 ) (13,571 ) (1,174 ) — (26,855 ) Exploration and pre-development (22 ) (10,645 ) (5,424 ) — (16,091 ) Research and development — (521 ) (93 ) — (614 ) Loss on derivative contracts (2,719 ) — — — (2,719 ) Foreign exchange gain (loss) 7,820 (14,636 ) 75 — (6,741 ) Lucky Friday suspension-related costs — (8,766 ) — — (8,766 ) Acquisition costs (221 ) (219 ) (153 ) — (593 ) Equity in earnings of subsidiaries (77,563 ) — — 77,563 — Other (expense) income (5,438 ) (31,573 ) 2,308 (12,589 ) (47,292 ) Income (loss) before income taxes (91,579 ) (83,093 ) (1,892 ) 64,974 (111,590 ) (Provision) benefit from income taxes (2 ) 6,864 558 12,589 20,009 Net income (loss) (91,581 ) (76,229 ) (1,334 ) 77,563 (91,581 ) Preferred stock dividends (414 ) — — — (414 ) Income (loss) applicable to common shareholders (91,995 ) (76,229 ) (1,334 ) 77,563 (91,995 ) Net income (loss) (91,581 ) (76,229 ) (1,334 ) 77,563 (91,581 ) Changes in comprehensive income (loss) 4,511 — — — 4,511 Comprehensive income (loss) $ (87,070 ) $ (76,229 ) $ (1,334 ) $ 77,563 $ (87,070 ) Three Months Ended September 30, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Revised Revised (in thousands) Revenues $ 5,020 $ 124,497 $ 14,132 $ — $ 143,649 Cost of sales (157 ) (80,876 ) (12,576 ) — (93,609 ) Depreciation, depletion, amortization — (41,669 ) (1,795 ) — (43,464 ) General and administrative (4,802 ) (5,082 ) (443 ) — (10,327 ) Exploration and pre-development (1 ) (11,227 ) (2,378 ) — (13,606 ) Research and development — (732 ) (537 ) — (1,269 ) Gain on derivative contracts 19,460 — — — 19,460 Foreign exchange gain (loss) 4,640 (7,629 ) 777 — (2,212 ) Lucky Friday suspension costs — (6,519 ) — — (6,519 ) Acquisition costs (5,741 ) (386 ) (12 ) — (6,139 ) Equity in earnings of subsidiaries (54,618 ) — — 54,618 — Other expense 13,016 (4,756 ) (262 ) (19,825 ) (11,827 ) Income (loss) before income taxes (23,183 ) (34,379 ) (3,094 ) 34,793 (25,863 ) (Provision) benefit from income taxes (1 ) (17,530 ) 385 19,825 2,679 Net income (loss) (23,184 ) (51,909 ) (2,709 ) 54,618 (23,184 ) Preferred stock dividends (138 ) — — — (138 ) Income (loss) applicable to common shareholders (23,322 ) (51,909 ) (2,709 ) 54,618 (23,322 ) Net income (loss) (23,184 ) (51,909 ) (2,709 ) 54,618 (23,184 ) Changes in comprehensive income (loss) 3,746 — — — 3,746 Comprehensive income (loss) $ (19,438 ) $ (51,909 ) $ (2,709 ) $ 54,618 $ (19,438 ) Nine Months Ended September 30, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Revised Revised (in thousands) Revenues $ 8,332 $ 381,556 $ 40,729 $ — $ 430,617 Cost of sales 245 (219,497 ) (27,666 ) — (246,918 ) Depreciation, depletion, amortization — (99,749 ) (3,586 ) — (103,335 ) General and administrative (13,250 ) (13,247 ) (1,352 ) — (27,849 ) Exploration and pre-development (128 ) (22,571 ) (8,525 ) — (31,224 ) Research and development — (3,702 ) (1,340 ) — (5,042 ) Gain/(loss) on derivative contracts 40,271 — — — 40,271 Foreign exchange gain (loss) (9,795 ) 12,230 421 — 2,856 Lucky Friday suspension costs — (18,337 ) — — (18,337 ) Acquisition costs (9,041 ) (454 ) (161 ) — (9,656 ) Equity in earnings of subsidiaries (31,105 ) — — 31,105 — Other (expense) income 11,602 (19,034 ) 722 (29,027 ) (35,737 ) Income (loss) before income taxes (2,869 ) (2,805 ) (758 ) 2,078 (4,354 ) (Provision) benefit from income taxes (1 ) (26,348 ) (1,194 ) 29,027 1,484 Net income (loss) (2,870 ) (29,153 ) (1,952 ) 31,105 (2,870 ) Preferred stock dividends (414 ) — — — (414 ) Income (loss) applicable to common shareholders (3,284 ) (29,153 ) (1,952 ) 31,105 (3,284 ) Net income (loss) (2,870 ) (29,153 ) (1,952 ) 31,105 (2,870 ) Changes in comprehensive income (loss) (3,520 ) 38 — (38 ) (3,520 ) Comprehensive income (loss) $ (6,390 ) $ (29,115 ) $ (1,952 ) $ 31,067 $ (6,390 )
Condensed Cash Flow Statement [Table Text Block]	Nine Months Ended September 30, 2019 Parent Guarantors Non-Guarantors Eliminations Consolidated (in thousands) Cash flows from operating activities $ (140,110 ) $ 92,042 $ (15,242 ) $ 126,919 $ 63,609 Cash flows from investing activities: Additions to properties, plants, equipment and mineral interests — (56,329 ) (41,009 ) — (97,338 ) Other investing activities, net 72,128 42 1,415 (72,128 ) 1,457 Cash flows from financing activities: Dividends paid to shareholders (4,070 ) — — — (4,070 ) Borrowings on debt 245,000 — — — 245,000 Payments on debt (195,000 ) (4,965 ) (519 ) — (200,484 ) Other financing activity, net 34,769 (38,672 ) 55,869 (54,791 ) (2,825 ) Effect of exchange rates on cash — 257 — — 257 Changes in cash, cash equivalents and restricted cash and cash equivalents 12,717 (7,625 ) 514 — 5,606 Beginning cash, cash equivalents and restricted cash and cash equivalents 6,266 18,258 3,890 — 28,414 Ending cash, cash equivalents and restricted cash and cash equivalents $ 18,983 $ 10,633 $ 4,404 $ — $ 34,020 Nine Months Ended September 30, 2018 Parent Guarantors Non-Guarantors Eliminations Consolidated Revised Revised (in thousands) Cash flows from operating activities $ (29,868 ) $ 88,853 $ (40,161 ) $ 56,386 $ 75,210 Cash flows from investing activities: Additions to properties, plants, equipment and mineral interests 20,710 (101,147 ) (2,848 ) — (83,285 ) Acquisitions of other companies, net of cash acquired (139,326 ) — — (139,326 ) Other investing activities, net (398,101 ) 4,309 — 431,815 38,023 Cash flows from financing activities: Dividends paid to shareholders (3,607 ) — — — (3,607 ) Borrowings on debt 78,024 — — — 78,024 Payments on debt (47,000 ) (41,028 ) — — (88,028 ) Other financing activity, net 443,372 26,051 16,709 (488,201 ) (2,069 ) Effect of exchange rates on cash — (215 ) — (215 ) Changes in cash, cash equivalents and restricted cash and cash equivalents (75,796 ) (23,177 ) (26,300 ) — (125,273 ) Beginning cash, cash equivalents and restricted cash and cash equivalents 103,877 46,619 36,643 — 187,139 Ending cash, cash equivalents and restricted cash and cash equivalents $ 28,081 $ 23,442 $ 10,343 $ — $ 61,866

Note 2 - Investments (Details T

Note 2 - Investments (Details Textual) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Equity Securities, FV-NI	$ 7.3		$ 6.6
Equity Securities, FV-NI, Cost	9.6		$ 7.7
Available-for-sale Equity Securities, Acquired During Period, Cost Basis	2.6	$ 0.8
Available-for-sale Equity Securities, Sold During Period, Cost Basis	0.9
Proceeds from Sale of Available-for-sale Securities, Equity	1.8
Equity Securities, FV-NI, Realized Gain (Loss), Total	0.9
Equity Securities, FV-NI, Unrealized Gain (Loss), Total	$ 1.2	$ 2.5

Note 3 - Income Taxes (Details

Note 3 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jul. 20, 2018
Deferred Tax Liabilities, Net, Total	$ 139,700		$ 139,700
Income Tax Expense (Benefit), Total	(1,614)	$ (2,679)	(20,009)	$ (1,484)
Klondex Mines Ltd [Member]
Deferred Tax Liabilities, Net, Total					$ 59,500
Income Tax Expense (Benefit), Total	2,400		10,300
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Deferred Tax Liabilities, Net, Total	43,100		43,100
Foreign Tax Authority [Member] | Canada Revenue Agency [Member]
Deferred Tax Liabilities, Net, Total	100,300		100,300
Foreign Tax Authority [Member] | Mexican Tax Authority [Member]
Deferred Tax Liabilities, Net, Total	$ 3,700		$ 3,700

Note 3 - Income Taxes - Major C

Note 3 - Income Taxes - Major Components of Income Tax Provision (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Domestic	$ (315)	$ 0	$ (317)	$ (1)
Foreign	(2,467)	(80)	(5,260)	(4,250)
Total current income tax benefit (provision)	(2,782)	(80)	(5,577)	(4,251)
Domestic	2,652	3,778	10,585	3,778
Foreign	1,744	(1,019)	15,001	1,957
Total deferred income tax benefit (provision)	4,396	2,759	25,586	5,735
Total income tax benefit (provision)	$ 1,614	$ 2,679	$ 20,009	$ 1,484

Note 4 - Commitments, Conting_2

Note 4 - Commitments, Contingencies and Obligations (Details Textual) $ in Millions	Apr. 12, 2013USD ($)	Oct. 31, 2019USD ($)	Oct. 31, 2018USD ($)	Jul. 31, 2018USD ($)	Dec. 31, 2014USD ($)	Aug. 31, 2012USD ($)	Jun. 30, 2011USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2014USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2014USD ($)	Mar. 05, 2018USD ($)	Mar. 05, 2018CAD ($)
Environmental Remediation Expense								$ 1,907,000	$ 1,852,000		$ 3,529,000	$ 4,534,000
Contractual Obligation, Total								1,300,000			1,300,000
Finance Lease, Liability, Payment, Due, Total								15,243,000			15,243,000
Lessee, Operating Lease, Liability, Payments, Due, Total								17,393,000			17,393,000
Letters of Credit Outstanding, Amount								38,500,000			38,500,000
Performance Obligation Commitments [Member]
Surety Bonds								191,800,000			191,800,000
Letters of Credit Outstanding, Amount								38,500,000			38,500,000
Lucky Friday [Member]
Open Purchase Orders								1,800,000			1,800,000
Casa Berardi [Member]
Open Purchase Orders								1,400,000			1,400,000
Greens Creek [Member]
Open Purchase Orders								4,300,000			4,300,000
Nevada Operations [Member]
Open Purchase Orders								500,000			500,000
Senior Notes [Member]
Proceeds from Issuance of Debt	$ 500,000,000
Debt Instrument, Increase (Decrease), Net, Total													$ 6,500,000
Debt Instrument, Face Amount	$ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.875%
Series 2018-A Senior Notes [Member]
Debt Instrument, Face Amount														$ 30,800,000	$ 40
Debt Instrument, Issuance, Discount Rate														0.58%	0.58%
Debt Instrument, Interest Rate, Stated Percentage														4.68%	4.68%
Canadian Assets of Klondex [Member]
Ownership Percentage				13.00%
Lawsuit in Lincoln County, Montana Courts for Montanore Project [Member]
Surety Bonds								$ 1,100,000			$ 1,100,000
Lawsuit in Lincoln County, Montana Courts for Montanore Project [Member] | Subsidiaries [Member]
Loss Contingency, Damages Awarded, Value			$ 3,325,000
Lawsuit filed in Ontario (Canada) Superior Court of Justice [Member] | Waterton Warrants [Member]
Class of Warrant or Right, Issued During Period, Value				$ 3,700,000
Class of Warrant or Right, Warrants Entitled, Value				8,900,000
Johnny M Mine Area near San Mateo, New Mexico [Member]
Payment Of Response Costs					$ 1,100,000	$ 1,100,000
Estimated Response Costs				$ 9,600,000	5,900,000
Environmental Remediation Expense										$ 5,600,000
Johnny M Mine Area near San Mateo, New Mexico [Member] | Subsequent Event [Member]
Environmental Remediation Expense		$ 5,900,000
Johnny M Mine Area near San Mateo, New Mexico [Member] | Minimum [Member]
Estimated Alternative Response Costs					0
Johnny M Mine Area near San Mateo, New Mexico [Member] | Maximum [Member]
Estimated Alternative Response Costs					$ 221,000,000
Carpenter Snow Creek Superfund Site, Cascade County, Montana [Member]
Estimated Response Costs							$ 4,500,000
Estimated Future Response Cost							$ 100,000,000

Note 5 - Loss Per Common Share

Note 5 - Loss Per Common Share (Details Textual) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Common Stock, Shares Authorized	750,000,000		750,000,000		750,000,000
Common Stock, Par or Stated Value Per Share	$ 0.25		$ 0.25		$ 0.25
Common Stock, Shares, Issued, Total	496,538,038		496,538,038		487,830,728
Treasury Stock, Shares, Ending Balance	6,287,271		6,287,271		5,226,791
Common Stock, Shares, Outstanding, Ending Balance	490,250,767		490,250,767
Earnings Per Share, Basic and Diluted, Total	$ (0.04)	$ (0.05)	$ (0.19)	$ (0.01)

Note 6 - Business Segments an_3

Note 6 - Business Segments and Sales of Products (Details Textual) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)oz	Sep. 30, 2019USD ($)oz	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)oz	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Number of Reportable Segments				5
Derivative, Gain on Derivative		$ 1,100		$ 5,000	$ 8,300
Derivative, Loss on Derivative			$ 100
Accounts Receivable, after Allowance for Credit Loss, Current, Total	$ 6,222	6,222		6,222		$ 4,184
Accounts Receivable, Allowance for Credit Loss, Ending Balance						0
Contract with Customer, Liability, Current	20,084	20,084		20,084		$ 0
Cost of Goods and Services Sold, Total		146,652	137,073	450,240	350,253
Depreciation, Depletion and Amortization, Total				143,040	108,814
Employee Labor Strike Related Costs		3,722	$ 6,519	8,766	18,337
Greens Creek [Member]
Proceeds from Customers	20,100
Contract with Customer, Liability, Current	20,100	20,100		20,100
Cost of Goods and Services Sold, Total	9,200
Depreciation, Depletion and Amortization, Total	2,600
Lucky Friday [Member]
Long-Lived Assets	$ 437,000	$ 437,000		$ 437,000
Estimated Mine Life				17 years
Lucky Friday [Member] | Suspension Costs [Member]
Employee Labor Strike Related Costs				$ 5,700	13,500
Lucky Friday [Member] | Non-cash Depreciation Expense [Member]
Employee Labor Strike Related Costs				$ 3,100	$ 3,700
Silver Contracts [Member]
Metals Contained in Concentrates | oz	2,900,000	2,900,000		2,900,000
Gold [Member]
Metals Contained in Concentrates | oz	8,831	8,831		8,831
Zinc [Member]
Metals Contained in Concentrates | oz	10,737	10,737		10,737
Lead [Member]
Metals Contained in Concentrates | oz	6,344	6,344		6,344

Note 6 - Business Segments an_4

Note 6 - Business Segments and Sales of Products - Information About Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Net sales	$ 161,532	$ 143,649	$ 448,321	$ 430,617
Income (loss) from operations	(5,113)	(30,376)	(64,714)	(14,671)
Identifiable assets	2,673,178		2,673,178		$ 2,703,944
Greens Creek [Member]
Net sales	59,015	65,187	194,542	205,642
Income (loss) from operations	17,556	10,705	52,130	59,373
Identifiable assets	648,420		648,420		637,386
Lucky Friday [Member]
Net sales	4,017	(11)	11,150	8,253
Income (loss) from operations	(3,727)	(5,404)	(8,779)	(14,811)
Identifiable assets	438,946		438,946		437,499
Casa Berardi [Member]
Net sales	53,453	52,850	139,015	164,501
Income (loss) from operations	(380)	(1,146)	(26,262)	3,118
Identifiable assets	717,631		717,631		754,248
San Sebastian [Member]
Net sales	15,435	14,129	39,028	40,727
Income (loss) from operations	1,077	(2,381)	(2,358)	2,275
Identifiable assets	50,549		50,549		44,152
Nevada Operations [Member]
Net sales	29,612	11,494	64,586	11,494
Income (loss) from operations	(8,346)	(13,741)	(43,812)	(13,741)
Identifiable assets	558,219		558,219		581,194
Other Segments [Member]
Income (loss) from operations	(11,293)	$ (18,409)	(35,633)	$ (50,885)
Identifiable assets	$ 259,413		$ 259,413		$ 249,465

Note 6 - Business Segments an_5

Note 6 - Business Segments and Sales of Products - Percentage of Sales by Segments (Details) - Revenue Benchmark [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Percentage of sales	100.00%	100.00%	100.00%	100.00%
Greens Creek [Member]
Percentage of sales	37.00%	45.00%	44.00%	48.00%
Lucky Friday [Member]
Percentage of sales	2.00%	0.00%	2.00%	2.00%
Casa Berardi [Member]
Percentage of sales	33.00%	37.00%	31.00%	39.00%
San Sebastian [Member]
Percentage of sales	10.00%	10.00%	9.00%	9.00%
Nevada Operations [Member]
Percentage of sales	18.00%	8.00%	14.00%	2.00%

Note 6 - Business Segments an_6

Note 6 - Business Segments and Sales of Products - Sales of Products (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Sales of products	$ 161,532	$ 143,649	$ 448,321	$ 430,617
Less: Smelter and refining charges	(5,351)	(5,530)	(21,609)	(20,530)
Sales by significant product type	160,484	138,627	448,458	422,284
Silver Contracts [Member]
Sales of products	40,588	38,009	122,392	111,656
Doré and Metals from Doré [Member]
Sales by significant product type	87,525	80,074	231,391	227,812
Gold [Member]
Sales of products	103,889	82,628	261,734	233,308
Carbon [Member]
Sales by significant product type	17,745	2,994	27,376	4,273
Lead [Member]
Sales of products	7,114	7,552	22,809	27,469
Lead Concentrate [Member]
Sales by significant product type	37,685	36,728	122,727	113,211
Zinc [Member]
Sales of products	15,292	20,990	62,995	78,714
Zinc Concentrate [Member]
Sales by significant product type	12,345	14,965	51,876	63,197
Bulk Concentrate [Member]
Sales by significant product type	$ 5,184	$ 3,866	$ 15,088	$ 13,791

Note 6 - Business Segments an_7

Note 6 - Business Segments and Sales of Products - Sales by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Sales by geographical area	$ 160,484	$ 138,627	$ 448,458	$ 422,284
CANADA
Sales by geographical area	88,610	83,723	258,708	266,915
KOREA, REPUBLIC OF
Sales by geographical area	33,683	35,796	109,184	110,036
JAPAN
Sales by geographical area	17,339	3,301	34,924	20,971
NETHERLANDS
Sales by geographical area	445	0	16,500	0
CHINA
Sales by geographical area	0	0	0	66
UNITED STATES
Sales by geographical area	$ 20,407	$ 15,807	$ 29,142	$ 24,296

Note 6 - Business Segments an_8

Note 6 - Business Segments and Sales of Products - Sales from Continuing Operations to Significant Metals Customers As a Percentage of Total Sales (Details) - Customer Concentration Risk [Member] - Revenue from Contract with Customer Benchmark [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
CIBC [Member]
Significant metal customers	36.00%	26.00%	24.00%	34.00%
Percentage of sales	36.00%	26.00%	24.00%	34.00%
Scotia [Member]
Significant metal customers	18.00%	19.00%	26.00%	13.00%
Percentage of sales	18.00%	19.00%	26.00%	13.00%
Korea Zinc [Member]
Significant metal customers	9.00%	15.00%	16.00%	22.00%
Percentage of sales	9.00%	15.00%	16.00%	22.00%
Teck Metals Ltd [Member]
Significant metal customers	3.00%	11.00%	7.00%	11.00%
Percentage of sales	3.00%	11.00%	7.00%	11.00%
Cliveden [Member]
Significant metal customers	12.00%	0.00%	4.00%	0.00%
Percentage of sales	12.00%	0.00%	4.00%	0.00%
Trafigura [Member]
Significant metal customers	0.00%	10.00%	4.00%	3.00%
Percentage of sales	0.00%	10.00%	4.00%	3.00%

Note 7 - Employee Benefit Pla_3

Note 7 - Employee Benefit Plans (Details Textual) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	May 31, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Pension Plan [Member]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 3,600
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		$ 0		$ 0
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		600		600
Other Nonoperating Income (Expense) [Member]
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component		$ 1,200	$ 700	$ 3,700	$ 2,100

Note 7 - Employee Benefit Pla_4

Note 7 - Employee Benefit Plans - Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Service cost	$ 1,100	$ 1,252	$ 3,300	$ 3,756
Interest cost	1,620	1,377	4,860	4,131
Expected return on plan assets	(1,496)	(1,634)	(4,488)	(4,902)
Amortization of prior service cost	15	15	45	45
Amortization of net loss	1,097	931	3,291	2,793
Net periodic pension cost	$ 2,336	$ 1,941	$ 7,008	$ 5,823

Note 8 - Shareholders' Equity_2

Note 8 - Shareholders' Equity (Details Textual) - USD ($)	Aug. 05, 2019	Jul. 20, 2018	Jun. 30, 2019	Apr. 30, 2019	Feb. 28, 2012	Sep. 30, 2011	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Nov. 05, 2019	Feb. 23, 2016	May 08, 2012
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation											1,060,480	697,341
Payment, Tax Withholding, Share-based Payment Arrangement											$ 2,200,000	$ 2,700,000
Treasury Stock Acquired, Average Cost Per Share											$ 2.11	$ 3.86
Common Stock, Dividends, Per Share, Declared	$ 0.0025						$ 0.0025			$ 0.0025	$ 0.0075	$ 0.0075
Dividends, Common Stock, Total	$ 1,200,000						$ 1,225,000			$ 1,196,000	$ 3,655,000	$ 3,196,000
Average Realized Silver Price Per Ounce								$ 15.01
Average Realized Silver Price, Minimum Dividend, Threshold							$ 30				$ 30		$ 30
Stock Issued During Period, Shares, New Issues											0		7,173,614
Stock Issued During Period, Value, New Issues										$ 3,086,000		$ 3,086,000	$ 24,500,000
Payments for Brokerage Fees													$ 600,000
Warrants in Connection with Klondex Mines Acquisition [Member]
Class of Warrant or Right, Issued During Period		4,136,000
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right		1
Warrants in Connection with Klondex Mines Acquisition Expiring April 2032 [Member]
Class of Warrant or Right, Outstanding		2,068,000
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 8.02
Warrants in Connection with Klondex Mines Acquisition Expiring February 2029 [Member]
Class of Warrant or Right, Outstanding		2,068,000
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 1.57
Common Stock Repurchase Program [Member]
Treasury Stock Acquired, Average Cost Per Share											$ 3.99
Stock Repurchase Program, Number of Shares Authorized to be Repurchased																20,000,000
Cumulative Stock Repurchased							934,100				934,100		934,100
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased							19,100,000				19,100,000		19,100,000
Treasury Stock, Shares, Acquired											0
Common Stock Repurchase Program [Member] | Subsequent Event [Member]
Share Price														$ 2.30
Minimum [Member]
Common Stock, Dividends, Per Share, Declared					$ 0.01	$ 0.01
Maximum [Member]
Common Stock, Aggregate Offering Price															$ 75,000,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				3,597,380
Share-based Payment Arrangement, Expense									$ 8,300,000		$ 4,700,000
Performance Shares [Member] | Executive Officer [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition			30 months
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
Restricted Stock Units (RSUs) [Member]
Share-based Payment Arrangement, Expense			$ 5,900,000								4,800,000
Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			2,971,188
Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			165,764
Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			63,589
Restricted Stock Units (RSUs) [Member] | Vesting in 2020 [Member]
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount							$ 2,100,000				$ 2,100,000		$ 2,100,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition											12 months
Restricted Stock Units (RSUs) [Member] | Vesting in 2021 [Member]
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount							2,000,000				$ 2,000,000		2,000,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition											24 months
Restricted Stock Units (RSUs) [Member] | Vesting in 2022 [Member]
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount							$ 1,800,000				$ 1,800,000		$ 1,800,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition											36 months

Note 8 - Shareholders' Equity -

Note 8 - Shareholders' Equity - Common Stock Dividend Policy (Details)	9 Months Ended
	Sep. 30, 2019$ / shares
Quarterly Average Realized Price, Level 1 [Member]
Quarterly dividend per share (in dollars per share)	$ 0.01
Annual dividend per share (in dollars per share)	0.04
Quarterly Average Realized Price, Level 2 [Member]
Quarterly dividend per share (in dollars per share)	0.02
Annual dividend per share (in dollars per share)	0.08
Quarterly Average Realized Price, Level 3 [Member]
Quarterly dividend per share (in dollars per share)	0.03
Annual dividend per share (in dollars per share)	0.12
Quarterly Average Realized Price, Level 4 [Member]
Quarterly dividend per share (in dollars per share)	0.04
Annual dividend per share (in dollars per share)	0.16
Quarterly Average Realized Price, Level 5 [Member]
Quarterly dividend per share (in dollars per share)	0.05
Annual dividend per share (in dollars per share)	$ 0.20

Note 9 - Debt, Credit Facilit_3

Note 9 - Debt, Credit Facility and Leases (Details Textual) $ in Thousands, $ in Millions	May 01, 2019	Apr. 12, 2013USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2014USD ($)	Jul. 01, 2020	Apr. 01, 2020	Jan. 01, 2020	Dec. 31, 2019	Oct. 01, 2019	Jul. 31, 2019USD ($)	Jan. 01, 2019USD ($)	Dec. 31, 2018USD ($)	Jul. 31, 2018USD ($)	Mar. 05, 2018USD ($)	Mar. 05, 2018CAD ($)	May 31, 2016USD ($)
Letters of Credit Outstanding, Amount			$ 38,500
Finance Lease, Liability, Total			14,275										$ 13,100
Finance Lease, Liability, Current			5,704										5,264
Finance Lease, Liability, Noncurrent			8,569										7,871
Finance Lease, Right-of-Use Asset			21,400										20,000
Finance Lease, Right-of-Use Asset, Amortization			5,100
Finance Lease, Interest Expense			600
Finance Lease, Liability, Payment, Due, Total			15,243
Finance Lease, Liability, Undiscounted Excess Amount			$ 968
Finance Lease, Weighted Average Remaining Lease Term			1 year 10 months 24 days
Operating Lease, Liability, Total			$ 17,330									$ 22,400
Operating Lease, Liability, Current			5,864										0
Operating Lease, Liability, Noncurrent			11,466										0
Operating Lease, Right-of-Use Asset			17,313									$ 22,400	$ 0
Operating Lease, Expense			5,700
Lessee, Operating Lease, Liability, Payments, Due, Total			$ 17,393
Operating Lease, Weighted Average Remaining Lease Term			4 years 8 months 12 days
Minimum [Member]
Lessee, Operating Lease, Discount Rate			5.00%
Maximum [Member]
Lessee, Operating Lease, Discount Rate			6.50%
Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity											$ 150,000			$ 250,000			$ 100,000
Leverage Ratio			6.50
Proceeds from Lines of Credit, Total			$ 50,000
Revolving Credit Facility [Member] | Subsequent Event [Member]
Leverage Ratio										6
Revolving Credit Facility [Member] | Forecast [Member]
Leverage Ratio						4	5	5.50	6
Letter of Credit [Member]
Letter of Credit Outstanding, Fronting Fee														0.20%
Letter of Credit [Member] | Minimum [Member]
Letter of Credit, Participation Fee, Percent														2.25%
Letter of Credit [Member] | Maximum [Member]
Letter of Credit, Participation Fee, Percent														3.25%
Senior Notes [Member]
Debt Instrument, Face Amount		$ 500,000
Payment for Pension Benefits					$ 6,500
Proceeds from Issuance of Senior Long-term Debt		$ 490,000
Underwriting Discount on Senior Notes		2.00%
Debt Instrument, Unamortized Discount, Total		$ 10,000	2,100
Debt Instrument, Interest Rate, Stated Percentage		6.875%
Interest Expense, Debt, Total			27,200	$ 27,200
Debt Instrument, Redemption Price, Percentage	100.00%	101.00%
Series 2018-A Senior Notes [Member]
Debt Instrument, Face Amount															$ 30,800	$ 40
Debt Instrument, Unamortized Discount, Total																$ 0.2
Debt Instrument, Interest Rate, Stated Percentage															4.68%	4.68%
Interest Expense, Debt, Total			$ 1,100	$ 1,100
Debt Instrument, Issuance, Discount Rate															0.58%	0.58%

Note 9 - Debt, Credit Facilit_4

Note 9 - Debt, Credit Facility and Leases - Credit Facility (Details) - New Facility [Member]	9 Months Ended
	Sep. 30, 2019
Minimum [Member]
Standby fee per annum on undrawn amounts	0.50%
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Variable rate	2.25%
Minimum [Member] | Base Rate [Member]
Variable rate	1.25%
Maximum [Member]
Standby fee per annum on undrawn amounts	1.00%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Variable rate	4.00%
Maximum [Member] | Base Rate [Member]
Variable rate	2.25%

Note 9 - Debt, Credit Facilit_5

Note 9 - Debt, Credit Facility and Leases - Annual Future Obligations Related to the Senior Notes (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
2020 (interest and fees only)	$ 36,455
2021 (principal and interest)	557,841
2022 (principal)	50,000
Total	644,296
Less: interest and fees	(57,592)
Principal	586,704
Less: unamortized discount	(2,086)
Long-term debt	584,618	$ 532,799
Revolving Credit Facility [Member]
2020 (interest and fees only)	219
2021 (principal and interest)	0
2022 (principal)	50,000
Total	50,219
Less: interest and fees	(219)
Principal	50,000
Less: unamortized discount	0
Long-term debt	50,000
Senior Notes [Member]
2020 (interest and fees only)	34,822
2021 (principal and interest)	526,813
2022 (principal)	0
Total	561,635
Less: interest and fees	(55,135)
Principal	506,500
Less: unamortized discount	(2,086)
Long-term debt	504,414
Series 2018-A Senior Notes [Member]
2020 (interest and fees only)	1,414
2021 (principal and interest)	31,028
Total	32,442
Less: interest and fees	(2,238)
Principal	30,204
Less: unamortized discount	0
Long-term debt	$ 30,204

Note 9 - Debt, Credit Facilit_6

Note 9 - Debt, Credit Facility and Leases - Maturities of Finance Lease (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
2020	$ 6,283
2021	5,125
2022	2,818
2023	1,017
Total	15,243
Less: imputed interest	(968)
Net finance lease obligation	$ 14,275	$ 13,100

Note 9 - Debt, Credit Facilit_7

Note 9 - Debt, Credit Facility and Leases - Maturities of Operating Lease (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019
2020	$ 6,570
2021	3,629
2022	2,808
2023	2,250
2024	862
More than 5 years	1,274
Total	17,393
Effect of discounting	(63)
Operating lease liability	$ 17,330	$ 22,400

Note 10 - Developments in Acc_2

Note 10 - Developments in Accounting Pronouncements (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Lease, Liability, Total	$ 17,330	$ 22,400
Operating Lease, Right-of-Use Asset	$ 17,313	$ 22,400	$ 0

Note 11 - Derivative Instrume_3

Note 11 - Derivative Instruments (Details Textual) $ in Thousands, $ in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Oct. 31, 2019USD ($)$ / oz	Sep. 30, 2019MXN ($)	Sep. 30, 2019CAD ($)
Maximum Allocation of Forecasted CAD-demonimated Operating Costs	75.00%		75.00%			75.00%	75.00%
Forecasted CAD-denominated Operating Costs to be Hedged, Term			5 years
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax, Ending Balance	$ (4,300)		$ (4,300)
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	(1,300)		(1,300)
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net			(1,200)
Derivative, Net Hedge Ineffectiveness Gain (Loss)			0
Derivative, Gain (Loss) on Derivative, Net, Total			(5,824)	$ 15,208
Gain (Loss) on Sale of Derivatives	(4,718)	$ 19,460	(2,719)	$ 40,271
Derivative Liability, Fair Value, Amount Not Offset Against Collateral, Total	12,400		12,400
Derivative, Fair Value, Obligations Under the Agreements	12,400		12,400
Foreign Exchange Contract [Member] | Other Current Assets [Member]
Derivative Asset, Current	100		100
Foreign Exchange Contract [Member] | Other Current Liabilities [Member]
Derivative Assets, Noncurrent, Total	1,400		1,400
Foreign Exchange Contract [Member] | Other Noncurrent Liabilities [Member]
Derivative Liability, Noncurrent	$ 2,900		$ 2,900
Foreign Exchange Contract [Member] | Casa Berardi [Member] | Minimum [Member]
Derivative, Forward Exchange Rate	1.2702		1.2702			1.2702	1.2702
Foreign Exchange Contract [Member] | Casa Berardi [Member] | Maximum [Member]
Derivative, Forward Exchange Rate	1.3332		1.3332			1.3332	1.3332
Foreign Exchange Contract [Member] | Casa Berardi [Member] | Designated as Hedging Instrument [Member]
Derivative, Number of Instruments Held, Total	135		135			135	135
Derivative, Notional Amount	$ 231,500		$ 231,500				$ 300.7
Foreign Exchange Contract [Member] | San Sebastian [Member] | Minimum [Member]
Derivative, Forward Exchange Rate	20.4100		20.4100			20.4100	20.4100
Foreign Exchange Contract [Member] | San Sebastian [Member] | Maximum [Member]
Derivative, Forward Exchange Rate	20.8550		20.8550			20.8550	20.8550
Foreign Exchange Contract [Member] | San Sebastian [Member] | Designated as Hedging Instrument [Member]
Derivative, Number of Instruments Held, Total	10		10			10	10
Derivative, Notional Amount	$ 1,800		$ 1,800			$ 37.3
Silver Contracts [Member] | Subsequent Event [Member]
Derivative, Average Price Risk Option Strike Price | $ / oz					16
Gold Contracts [Member] | Subsequent Event [Member]
Derivative, Notional Amount					$ 3,200
Derivative, Average Price Risk Option Strike Price | $ / oz					1,450
Commodity Contract [Member]
Derivative Asset, Current	1,100		1,100
Derivative Asset, Total	700		700
Derivative Liability, Current	7,100		7,100
Derivative Liability, Total	400		400
Unsettled Concentrate Sales Contracts [Member]
Derivative, Gain (Loss) on Derivative, Net, Total			(100)
Forecasted Future Concentrate Contracts [Member]
Derivative, Gain (Loss) on Derivative, Net, Total			$ 2,700
Gain (Loss) on Sale of Derivatives	$ 6,700	$ 32,800

Note 11 - Derivative Instrume_4

Note 11 - Derivative Instruments - Summary of Forward Sales and Put Option Contracts (Details) oz in Thousands, lb in Thousands	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2019USD ($)oz	Sep. 30, 2019USD ($)lboz	Dec. 31, 2018USD ($)lboz
Silver 2019 Settlements for Provisional Sales [Member]
Ounces/pounds under contract (Ounce) | oz		828	842
Average price per ounce/pound		$ 18.66	$ 14.69
Gold 2019 Settlements for Provisional Sales [Member]
Ounces/pounds under contract (Ounce) | oz		3	4
Average price per ounce/pound		$ 1,537	$ 1,260
Zinc 2019 Settlements for Provisional Sales [Member]
Ounces/pounds under contract (Ounce) | lb		16,204
Average price per ounce/pound		$ 1.09
Lead 2019 Settlements for Provisional Sales [Member]
Ounces/pounds under contract (Ounce) | lb		2,921	2,700
Average price per ounce/pound		$ 0.90	$ 0.89
Zinc 2018 Settlements for Provisional Sales [Member]
Ounces/pounds under contract (Ounce) | lb			18,450
Average price per ounce/pound			$ 1.15
Put Option Contract for Silver 1 [Member]
Ounces/pounds under contract (Ounce) | oz		2,493
Average price per ounce/pound		$ 15.08
Put Option Contract for Gold 1 [Member]
Ounces/pounds under contract (Ounce) | oz		89
Average price per ounce/pound		$ 1,400
Lead 2019 Settlements for Forecasted Sales [Member]
Ounces/pounds under contract (Ounce) | lb		4,409
Average price per ounce/pound		$ 0.95
Put Option Contract for Silver 2 [Member]
Ounces/pounds under contract (Ounce) | oz		2,634
Average price per ounce/pound		$ 15
Put Option Contract for Gold 2 [Member]
Ounces/pounds under contract (Ounce) | oz		51
Average price per ounce/pound		$ 1,400
Lead 2020 Settlements for Forecasted Sales [Member]
Ounces/pounds under contract (Ounce) | oz	4,960
Average price per ounce/pound	$ 960

Note 12 - Fair Value Measurem_3

Note 12 - Fair Value Measurement (Details Textual) - Senior Notes [Member] $ in Millions	Sep. 30, 2019USD ($)
Notes Payable, Total	$ 504.4
Fair Value, Inputs, Level 1 [Member]
Notes Payable, Fair Value Disclosure	$ 503.6

Note 12 - Fair Value Measurem_4

Note 12 - Fair Value Measurement - Assets and Liabilities Accounted for at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Receivables from provisional concentrate sales	$ 8,056	$ 7,443
Fair Value, Recurring [Member]
Total assets	48,826	39,413
Total liabilities	11,321	8,968
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]
Money market funds and other bank deposits	32,995	27,389
Equity securities – mining industry	7,349	6,583
Certificates of deposit and other deposits	1,025	1,025
Fair Value, Inputs, Level 2 [Member]
Metal forward and put option contracts	1,092	209
Metal forward and put option contracts	7,081	373
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]
Receivables from provisional concentrate sales	6,222	4,184
Foreign exchange contracts	143	23
Foreign exchange contracts	$ 4,240	$ 8,595

Note 13 - Acquisition of Klon_3

Note 13 - Acquisition of Klondex Mines Ltd. (Details Textual)	Jul. 20, 2018USD ($)$ / sharesshares	Jul. 19, 2018shares	Jun. 30, 2019USD ($)	Sep. 30, 2019USD ($)shares	Sep. 30, 2019USD ($)shares	Dec. 31, 2018shares
Common Stock, Shares, Issued, Total | shares				496,538,038	496,538,038	487,830,728
Common Stock, Shares, Outstanding, Ending Balance | shares				490,250,767	490,250,767
Stock Issued During Period, Shares, New Issues | shares				0	7,173,614
Warrants in Connection with Klondex Mines Acquisition [Member]
Class of Warrant or Right, Issued During Period | shares	4,136,000
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | shares	1
Warrants in Connection with Klondex Mines Acquisition Expiring April 2032 [Member]
Class of Warrant or Right, Outstanding | shares	2,068,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 8.02
Warrants in Connection with Klondex Mines Acquisition Expiring February 2029 [Member]
Class of Warrant or Right, Outstanding | shares	2,068,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 1.57
Klondex Mines Ltd [Member]
Common Stock, Shares, Issued, Total | shares	182,048,945	180,499,319
Common Stock, Shares, Outstanding, Ending Balance | shares	182,048,945	180,499,319
Stock Issued During Period, Shares, New Issues | shares		1,549,626
Klondex Mines Ltd [Member]
Business Acquisition, Share Price | $ / shares	$ 2.27
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Business Combination, Consideration, Cash Alternative, Price Per Share | $ / shares	$ 2.47
Business Combination, Consideration, Share Alternative, Share Exchange Rate	0.6272
Business Combination Consideration, Combined Alternative, Price Per Share | $ / shares	$ 0.8411
Business Combination Consideration, Combined Alternative, Share Exchange Rate	0.4136
Payments to Acquire Businesses, Gross | $	$ 161,704,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	75,276,176
Stock Issued During Period, Shares, New Issues | shares	75,276,176
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 8.02
Share-based Payment Arrangement, Cash Used to Settle Award | $	$ 2,000,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable | $	242,389,000
Business Combination, Consideration Transferred, Total | $	413,923,000
Business Combination, Subscrition of New Formed Company, Value | $	7,000,000
Business Combination, Settlement of Certain Equity Compensation Value | $	1,500,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment | $			$ 2,800,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accounts Payable and Accrued Liabilities | $			2,100,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Deferred Tax Liability | $			700,000
Weighted Average Gold Price Per Ounce | $			$ 1,280	$ 1,345	$ 1,345
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total | $	510,015,000			$ 524,800,000	$ 524,800,000
Klondex Mines Ltd [Member] | Hecla Warrants [Member]
Class of Warrant or Right, Issued During Period, Value | $	9,800,000
Klondex Mines Ltd [Member] | Maximum [Member]
Payments to Acquire Businesses, Gross | $	$ 153,200,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	75,276,176

Note 13 - Acquisition of Klon_4

Note 13 - Acquisition of Klondex Mines Ltd. - Preliminary Purchase Price Allocation (Details) - Klondex Mines Ltd [Member] - USD ($) $ in Thousands	Jul. 20, 2018	Sep. 30, 2019
Payments to Acquire Businesses, Gross	$ 161,704
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	242,389
Hecla warrants issued	9,830
Total consideration	413,923
Cash	12,874
Accounts receivable	3,453
Inventory - supplies	6,565
Inventory - finished goods, in-process material and stockpiled ore	10,075
Other current assets	2,583
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total	510,015	$ 524,800
Non-current investments	1,596
Non-current restricted cash and investments	9,504
Total assets	556,665
Accounts payable and accrued liabilities	17,799
Accrued payroll and related benefits	8,245
Accrued taxes	421
Lease liability	2,080
Debt	35,086
Asset retirement obligation	19,571
Deferred tax liability	59,540
Total liabilities	142,742
Net assets	$ 413,923

Note 13 - Acquisition of Klon_5

Note 13 - Acquisition of Klondex Mines Ltd. - Preliminary Purchase Price Allocation (Details) (Parentheticals) - Klondex Mines Ltd [Member]	Jul. 20, 2018$ / sharesshares
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	75,276,176
Stock Issued, per share (in dollars per share) | $ / shares	$ 3.22

Note 13 - Acquisition of Klon_6

Note 13 - Acquisition of Klondex Mines Ltd. - Properties, Plants, Equipment and Mineral Interests (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Properties, plants, equipment and mineral interests	$ 2,455,511	$ 2,520,004
Nevada Operations [Member]
Properties, plants, equipment and mineral interests	524,800
Beyond Proven and Probable Reserves [Member] | Nevada Operations [Member]
Properties, plants, equipment and mineral interests	382,200
Mining Properties and Mineral Rights [Member] | Nevada Operations [Member]
Properties, plants, equipment and mineral interests	57,700
Mills and Tailings Facilities [Member] | Nevada Operations [Member]
Properties, plants, equipment and mineral interests	46,400
Buildings and Equipment [Member] | Nevada Operations [Member]
Properties, plants, equipment and mineral interests	33,000
Land [Member] | Nevada Operations [Member]
Properties, plants, equipment and mineral interests	2,900
Asset Retirement Obligation [Member] | Nevada Operations [Member]
Properties, plants, equipment and mineral interests	$ 2,600

Note 14 - Guarantor Subsidiar_3

Note 14 - Guarantor Subsidiaries (Details Textual)	9 Months Ended
	Sep. 30, 2019
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions	100.00%

Note 14 - Guarantor Subsidiar_4

Note 14 - Guarantor Subsidiaries - Unaudited Interim Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Cash and cash equivalents	$ 32,995		$ 27,389
Other current assets	145,931		136,761
Properties, plants, equipment and mineral interests, net	2,455,511		2,520,004
Intercompany receivable (payable)	0		0
Investments in subsidiaries	0		0
Other non-current assets	38,741		19,790
Total assets	2,673,178		2,703,944
Current liabilities	145,843		136,194
Long-term debt	604,653		540,670
Accrued reclamation and closure costs	103,821		104,979
Non-current deferred tax liability	143,442		173,537
Other non-current liabilities	58,775		57,601
Shareholders' equity	1,616,644	$ 1,639,228	1,690,963	$ 1,722,069	$ 1,478,695	$ 1,461,277
Total liabilities and shareholders' equity	2,673,178		2,703,944
Reportable Legal Entities [Member] | Parent Company [Member]
Cash and cash equivalents	18,983		6,266
Other current assets	7,031		6,388
Properties, plants, equipment and mineral interests, net	1,913		1,913
Intercompany receivable (payable)	143,248		171,908
Investments in subsidiaries	1,499,318		1,577,869
Other non-current assets	284,380		276,641
Total assets	1,954,873		2,040,985
Current liabilities	(298,754)		(233,824)
Long-term debt	584,618		532,799
Accrued reclamation and closure costs	0		0
Non-current deferred tax liability	0		0
Other non-current liabilities	52,365		51,047
Shareholders' equity	1,616,644		1,690,963
Total liabilities and shareholders' equity	1,954,873		2,040,985
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Cash and cash equivalents	9,608		17,233
Other current assets	113,542		105,900
Properties, plants, equipment and mineral interests, net	2,438,137		2,503,467
Intercompany receivable (payable)	(709,012)		(546,374)
Investments in subsidiaries	0		0
Other non-current assets	25,380		10,906
Total assets	1,877,655		2,091,132
Current liabilities	165,564		157,640
Long-term debt	19,159		143,858
Accrued reclamation and closure costs	95,674		100,445
Non-current deferred tax liability	146,069		163,328
Other non-current liabilities	5,393		5,641
Shareholders' equity	1,445,796		1,520,220
Total liabilities and shareholders' equity	1,877,655		2,091,132
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Cash and cash equivalents	4,404		3,890
Other current assets	25,430		24,542
Properties, plants, equipment and mineral interests, net	15,461		14,624
Intercompany receivable (payable)	149,616		152,031
Investments in subsidiaries	0		0
Other non-current assets	(120,645)		(124,845)
Total assets	74,266		70,242
Current liabilities	10,704		7,145
Long-term debt	876		1
Accrued reclamation and closure costs	8,147		4,534
Non-current deferred tax liability	0		0
Other non-current liabilities	1,017		913
Shareholders' equity	53,522		57,649
Total liabilities and shareholders' equity	74,266		70,242
Consolidation, Eliminations [Member]
Cash and cash equivalents	0		0
Other current assets	(72)		(69)
Properties, plants, equipment and mineral interests, net	0		0
Intercompany receivable (payable)	416,148		222,435
Investments in subsidiaries	(1,499,318)		(1,577,869)
Other non-current assets	(150,374)		(142,912)
Total assets	(1,233,616)		(1,498,415)
Long-term debt	0		(135,988)
Accrued reclamation and closure costs	0		0
Non-current deferred tax liability	(2,627)
Other non-current liabilities	0		0
Shareholders' equity	(1,499,318)		(1,577,869)
Total liabilities and shareholders' equity	(1,233,616)		(1,498,415)
Segment Reconciling Items [Member]
Current liabilities	$ 268,329		205,233
Non-current deferred tax liability			$ 10,209

Note 14 - Guarantor Subsidiar_5

Note 14 - Guarantor Subsidiaries - Unaudited Interim Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues	$ 161,532	$ 143,649	$ 448,321	$ 430,617
Cost of sales	(95,878)	(93,609)	(311,202)	(246,918)
Depreciation, depletion, amortization	(50,774)	(43,464)	(139,038)	(103,335)
General and administrative	(7,978)	(10,327)	(26,855)	(27,849)
Exploration and pre-development	(5,689)	(13,606)	(16,091)	(31,224)
Research and development	(53)	(1,269)	(614)	(5,042)
Gain (loss) on derivative contracts	(4,718)	19,460	(2,719)	40,271
Foreign exchange gain (loss)	773	(2,212)	(6,741)	2,856
Lucky Friday suspension-related costs	(3,722)
Acquisition costs	(183)	(6,139)	(593)	(9,656)
Equity in earnings of subsidiaries	0	0	0	0
Other (expense) income	(14,440)	(11,827)	(47,292)	(35,737)
Income (loss) before income taxes	(21,130)	(25,863)	(111,590)	(4,354)
(Provision) benefit from income taxes	1,614	2,679	20,009	1,484
Net income (loss)	(19,516)	(23,184)	(91,581)	(2,870)
Series B Preferred Stock dividends declared	(138)	(138)	(414)	(414)
Income (loss) applicable to common shareholders	(19,654)	(23,322)	(91,995)	(3,284)
Changes in comprehensive income (loss)	(3,288)	3,746	4,511	(3,521)
Comprehensive income (loss)	(22,804)	(19,438)	(87,070)	(6,390)
Revenues	161,532	143,649	448,321	430,617
Lucky Friday suspension-related costs	(3,722)	(6,519)	(8,766)	(18,337)
Reportable Legal Entities [Member] | Parent Company [Member]
Revenues	1,049	5,020	(136)	8,332
Cost of sales	(472)	(157)	(1,190)	245
Depreciation, depletion, amortization	0	0	0	0
General and administrative	(2,951)	(4,802)	(12,110)	(13,250)
Exploration and pre-development	(3)	(1)	(22)	(128)
Research and development	0	0	0	0
Gain (loss) on derivative contracts	(4,718)	19,460	(2,719)	40,271
Foreign exchange gain (loss)	(3,201)	4,640	7,820	(9,795)
Lucky Friday suspension-related costs	0
Acquisition costs	(100)	(5,741)	(221)	(9,041)
Equity in earnings of subsidiaries	(6,761)	(54,618)	(77,563)	(31,105)
Other (expense) income	(2,359)	13,016	(5,438)	11,602
Income (loss) before income taxes	(19,516)	(23,183)	(91,579)	(2,869)
(Provision) benefit from income taxes	0	(1)	(2)	(1)
Net income (loss)	(19,516)	(23,184)	(91,581)	(2,870)
Series B Preferred Stock dividends declared	(138)	(138)	(414)	(414)
Income (loss) applicable to common shareholders	(19,654)	(23,322)	(91,995)	(3,284)
Changes in comprehensive income (loss)	(3,288)	3,746	4,511	(3,520)
Comprehensive income (loss)	(22,804)	(19,438)	(87,070)	(6,390)
Revenues	1,049	5,020	(136)	8,332
Lucky Friday suspension-related costs		0	0	0
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Revenues	144,999	124,497	409,339	381,556
Cost of sales	(85,829)	(80,876)	(280,397)	(219,497)
Depreciation, depletion, amortization	(47,448)	(41,669)	(132,104)	(99,749)
General and administrative	(4,722)	(5,082)	(13,571)	(13,247)
Exploration and pre-development	(4,315)	(11,227)	(10,645)	(22,571)
Research and development	37	(732)	(521)	(3,702)
Gain (loss) on derivative contracts	0	0	0	0
Foreign exchange gain (loss)	5,129	(7,629)	(14,636)	12,230
Lucky Friday suspension-related costs	(3,722)
Acquisition costs	(83)	(386)	(219)	(454)
Equity in earnings of subsidiaries	0	0	0	0
Other (expense) income	(9,930)	(4,756)	(31,573)	(19,034)
Income (loss) before income taxes	(5,884)	(34,379)	(83,093)	(2,805)
(Provision) benefit from income taxes	(625)	(17,530)	6,864	(26,348)
Net income (loss)	(6,509)	(51,909)	(76,229)	(29,153)
Series B Preferred Stock dividends declared	0	0	0	0
Income (loss) applicable to common shareholders	(6,509)	(51,909)	(76,229)	(29,153)
Changes in comprehensive income (loss)	0	0	0	38
Comprehensive income (loss)	(6,509)	(51,909)	(76,229)	(29,115)
Revenues	144,999	124,497	409,339	381,556
Lucky Friday suspension-related costs		(6,519)	(8,766)	(18,337)
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Revenues	15,484	14,132	39,118	40,729
Cost of sales	(9,577)	(12,576)	(29,615)	(27,666)
Depreciation, depletion, amortization	(3,326)	(1,795)	(6,934)	(3,586)
General and administrative	(305)	(443)	(1,174)	(1,352)
Exploration and pre-development	(1,371)	(2,378)	(5,424)	(8,525)
Research and development	(90)	(537)	(93)	(1,340)
Gain (loss) on derivative contracts	0	0	0	0
Foreign exchange gain (loss)	(1,155)	777	75	421
Lucky Friday suspension-related costs	0
Acquisition costs	0	(12)	(153)	(161)
Equity in earnings of subsidiaries	0	0	0	0
Other (expense) income	1,606	(262)	2,308	722
Income (loss) before income taxes	1,266	(3,094)	(1,892)	(758)
(Provision) benefit from income taxes	(1,518)	385	558	(1,194)
Net income (loss)	(252)	(2,709)	(1,334)	(1,952)
Series B Preferred Stock dividends declared	0	0	0	0
Income (loss) applicable to common shareholders	(252)	(2,709)	(1,334)	(1,952)
Changes in comprehensive income (loss)	0	0	0	0
Comprehensive income (loss)	(252)	(2,709)	(1,334)	(1,952)
Revenues	15,484	14,132	39,118	40,729
Lucky Friday suspension-related costs		0	0	0
Consolidation, Eliminations [Member]
Revenues	0	0	0	0
Cost of sales	0	0	0	0
Depreciation, depletion, amortization	0	0	0	0
General and administrative	0	0	0	0
Exploration and pre-development	0	0	0	0
Research and development	0	0	0	0
Gain (loss) on derivative contracts	0	0	0	0
Foreign exchange gain (loss)	0	0	0	0
Lucky Friday suspension-related costs	0
Acquisition costs	0	0	0	0
Equity in earnings of subsidiaries	6,761	54,618	77,563	31,105
Other (expense) income	(3,757)	(19,825)	(12,589)	(29,027)
Income (loss) before income taxes	3,004	34,793	64,974	2,078
(Provision) benefit from income taxes	3,757	19,825	12,589	29,027
Net income (loss)	6,761	54,618	77,563	31,105
Series B Preferred Stock dividends declared	0	0	0	0
Income (loss) applicable to common shareholders	6,761	54,618	77,563	31,105
Changes in comprehensive income (loss)	0	0	0	(38)
Comprehensive income (loss)	6,761	54,618	77,563	31,067
Revenues	$ 0	0	0	0
Lucky Friday suspension-related costs		$ 0	$ 0	$ 0

Note 14 - Guarantor Subsidiar_6

Note 14 - Guarantor Subsidiaries - Unaudited Interim Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities	$ 63,609	$ 75,210
Additions to properties, plants, equipment and mineral interests	(97,338)	(83,285)
Other investing activities, net	1,457	38,023
Dividends paid to shareholders	(4,070)	(3,607)
Borrowings on debt	245,000	78,024
Payments on debt	(200,484)	(88,028)
Other financing activity, net	(2,825)	(2,069)
Effect of exchange rates on cash	257	(215)
Changes in cash, cash equivalents and restricted cash and cash equivalents	5,606	(125,273)
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period	28,414	187,139
Cash, cash equivalents and restricted cash and cash equivalents at end of period	34,020	61,866
Acquisitions of businesses, net of cash acquired	0	(139,326)
Reportable Legal Entities [Member] | Parent Company [Member]
Cash flows from operating activities	(140,110)	(29,868)
Additions to properties, plants, equipment and mineral interests	0	20,710
Other investing activities, net	72,128	(398,101)
Dividends paid to shareholders	(4,070)	(3,607)
Borrowings on debt	245,000	78,024
Payments on debt	(195,000)	(47,000)
Other financing activity, net	34,769	443,372
Effect of exchange rates on cash	0	0
Changes in cash, cash equivalents and restricted cash and cash equivalents	12,717	(75,796)
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period	6,266	103,877
Cash, cash equivalents and restricted cash and cash equivalents at end of period	18,983	28,081
Acquisitions of businesses, net of cash acquired		(139,326)
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Cash flows from operating activities	92,042	88,853
Additions to properties, plants, equipment and mineral interests	(56,329)	(101,147)
Other investing activities, net	42	4,309
Dividends paid to shareholders	0	0
Borrowings on debt	0	0
Payments on debt	(4,965)	(41,028)
Other financing activity, net	(38,672)	26,051
Effect of exchange rates on cash	257	(215)
Changes in cash, cash equivalents and restricted cash and cash equivalents	(7,625)	(23,177)
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period	18,258	46,619
Cash, cash equivalents and restricted cash and cash equivalents at end of period	10,633	23,442
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Cash flows from operating activities	(15,242)	(40,161)
Additions to properties, plants, equipment and mineral interests	(41,009)	(2,848)
Other investing activities, net	1,415	0
Dividends paid to shareholders	0	0
Borrowings on debt	0	0
Payments on debt	(519)	0
Other financing activity, net	55,869	16,709
Effect of exchange rates on cash	0
Changes in cash, cash equivalents and restricted cash and cash equivalents	514	(26,300)
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period	3,890	36,643
Cash, cash equivalents and restricted cash and cash equivalents at end of period	4,404	10,343
Acquisitions of businesses, net of cash acquired		0
Consolidation, Eliminations [Member]
Cash flows from operating activities	126,919	56,386
Additions to properties, plants, equipment and mineral interests	0	0
Other investing activities, net	(72,128)	431,815
Dividends paid to shareholders	0	0
Borrowings on debt	0	0
Payments on debt	0	0
Other financing activity, net	(54,791)	(488,201)
Effect of exchange rates on cash	0	0
Changes in cash, cash equivalents and restricted cash and cash equivalents	0	0
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period	0	0
Cash, cash equivalents and restricted cash and cash equivalents at end of period	$ 0	0
Acquisitions of businesses, net of cash acquired		$ 0