Hycroft Mining Holding (HYMC) 10-Q 31 Oct 23 2023 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2023	Oct. 30, 2023
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-38387
Entity Registrant Name	HYCROFT MINING HOLDING CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	82-2657796
Entity Address, Address Line One	4300 Water Canyon Road
Entity Address, Address Line Two	Unit 1
Entity Address, City or Town	Winnemucca
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89445
City Area Code	775
Local Phone Number	304-0260
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		202,132,839
Entity Central Index Key	0001718405
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2023
Class A common stock
Document Information [Line Items]
Title of 12(b) Security	Class A common stock, par value $0.0001 per share
Trading Symbol	HYMC
Security Exchange Name	NASDAQ
Warrants to Purchase Common Stock
Document Information [Line Items]
Title of 12(b) Security	Warrants to purchase common stock
Trading Symbol	HYMCW
Security Exchange Name	NASDAQ
Warrants to Purchase Common Stock, Three
Document Information [Line Items]
Title of 12(b) Security	Warrants to purchase common stock
Trading Symbol	HYMCL
Security Exchange Name	NASDAQ

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Assets:
Cash and cash equivalents	$ 106,911	$ 141,984
Prepaids and deposits – Note 3	3,674	2,840
Materials and supplies inventories, net – Note 4	2,812	2,808
Income tax receivable	1,530	1,530
Interest receivable	518	459
Accounts receivable	0	2,771
Current assets	115,445	152,392
Property, plant, and equipment, net – Note 5	53,533	54,832
Restricted cash – Note 6	35,087	33,982
Assets held for sale – Note 7	7,148	7,148
Prepaids – Note 3	600	600
Total assets	211,813	248,954
Liabilities:
Accounts payable and accrued expenses – Note 8	2,542	5,644
Debt, net – Notes 9 and 20	2,328	2,328
Contract liabilities – Note 10	1,150	1,050
Other liabilities – Note 11	2,438	3,011
Current liabilities	8,458	12,033
Debt, net – Notes 9 and 20	140,041	132,690
Deferred gain on sale of royalty	29,837	29,837
Asset retirement obligation – Note 12	10,860	10,302
Warrant liabilities – Notes 13 and 20	21	786
Other liabilities – Note 11	17	0
Total liabilities	189,234	185,648
Commitments and contingencies – Note 22
Stockholders’ equity – Note 14
Common stock, $0.0001 par value; 1,400,000,000 shares authorized; 202,132,839 issued and outstanding at September 30, 2023, and 200,270,659 issued and outstanding at December 31, 2022	20	20
Additional paid-in capital	736,220	733,437
Accumulated deficit	(713,661)	(670,151)
Total stockholders’ equity	22,579	63,306
Total liabilities and stockholders’ equity	$ 211,813	$ 248,954

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, authorized (in shares)	1,400,000,000	1,400,000,000
Common stock, issued (in shares)	202,132,839	200,270,659
Common stock, outstanding (in shares)	202,132,839	200,270,659

UNAUDITED CONDENSED CONSOLIDATE

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenues – Note 15		$ 0	$ 8,758	$ 0	$ 21,755
Cost of sales:
Production costs		0	8,803	0	22,020
Depreciation and amortization – Note 2		0	1,025	0	2,577
Mine site period costs – Note 2		0	1,409	0	10,429
Total cost of sales		0	11,237	0	35,026
Operating expenses:
Projects, exploration, and development		7,200	7,011	15,974	8,200
General and administrative		2,765	3,032	9,810	11,352
Mine site period costs – Note 2		2,694	0	9,325	0
Gain on settlement of accrued liability – Note 8		0	0	(1,151)	0
Depreciation and amortization – Note 2		726	0	2,155	0
Accretion – Note 12		186	102	558	306
Loss from operations		(13,571)	(12,624)	(36,671)	(33,129)
Other (expense) income:
Interest expense – Note 9		(4,698)	(4,459)	(13,721)	(14,003)
Interest income		2,100	826	6,159	846
Fair value adjustment to warrants – Notes 13 and 20		1	1,133	182	(482)
Gain (loss) on sale of equipment and supplies inventories, net of commissions	[1]	456	(725)	541	(123)
Net loss		$ (15,712)	$ (15,849)	$ (43,510)	$ (46,891)
Loss per share:
Basic (in dollars per share)		$ (0.08)	$ (0.08)	$ (0.22)	$ (0.29)
Diluted (in dollars per share)		$ (0.08)	$ (0.08)	$ (0.22)	$ (0.29)
Weighted average shares outstanding:
Basic (in shares)		201,954,021	199,207,092	201,021,368	159,607,217
Diluted (in shares)		201,954,021	199,207,092	201,021,368	159,607,217
[1]Certain items from prior years were reclassified in the financial statements to conform with the current year presentation.

UNAUDITED CONDENSED CONSOLIDA_2

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Cash flows used in operating activities:
Net loss		$ (15,712)	$ (15,849)	$ (43,510)	$ (46,891)
Adjustments to reconcile net loss for the period to net cash used in operating activities:
Non-cash portion of interest expense – Note 9				9,096	10,129
(Gain) loss on fair value adjustment for warrant liabilities – Notes 13 and 20		(1)	(1,133)	(182)	482
Gain on settlement of accrued liability – Note 8		0	0	(1,151)	0
Depreciation and amortization – Notes 2 and 5				2,155	2,577
Stock-based compensation – Note 16				2,200	1,750
Accretion – Note 12		186	102	558	306
Gain (loss) on sale of equipment, net of commissions	[1]	(456)	725	(541)	123
Changes in operating assets and liabilities:
Accounts receivable				2,771	(978)
Interest receivable				(59)	(294)
Production-related inventories				0	8,632
Materials and supplies inventories, net – Note 4				(4)	235
Prepaids – Note 3				(1,392)	(1,880)
Accounts payable and accrued expenses – Note 8				(1,416)	(3,835)
Contract liabilities – Note 10				100	6,682
Other liabilities – Note 11				(556)	(1,401)
Net cash used in operating activities				(31,931)	(24,363)
Cash flows (used in) provided by investing activities:
Additions to property, plant, and equipment				(851)	(913)
Proceeds from sale of equipment				559	2,007
Proceeds from assets held for sale				0	439
Net cash (used in) provided by investing activities				(292)	1,533
Cash flows (used in) provided by financing activities:
Principal payments on debt				(1,650)	(25,506)
Principal payments on notes payable				(95)	(94)
Proceeds from issuance of common stock and warrants, net of issuance costs – Note 14				0	188,860
Net cash (used in) provided by financing activities				(1,745)	163,260
Net (decrease) increase in cash, cash equivalents, and restricted cash				(33,968)	140,430
Cash, cash equivalents, and restricted cash, beginning of period				175,966	46,635
Cash, cash equivalents, and restricted cash, end of period		141,998	187,065	141,998	187,065
Reconciliation of cash, cash equivalents, and restricted cash:
Cash and cash equivalents		106,911	153,403	106,911	153,403
Restricted cash		35,087	33,662	35,087	33,662
Total cash, cash equivalents, and restricted cash		$ 141,998	$ 187,065	$ 141,998	$ 187,065
[1]Certain items from prior years were reclassified in the financial statements to conform with the current year presentation.

UNAUDITED CONDENSED CONSOLIDA_3

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021	[1]		60,433,455
Beginning balance at Dec. 31, 2021		$ (68,494)	$ 6	$ 540,823	$ (609,323)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and warrants - Note 14 (in shares)			136,370,064
Issuance of common stock and warrants – Note 14		189,412	$ 14	189,398
Stock-based compensation costs		391		391
Vesting of restricted stock units		37		37
Net loss		(22,060)			(22,060)
Ending balance (in shares) at Mar. 31, 2022			196,803,519
Ending balance at Mar. 31, 2022		99,286	$ 20	730,649	(631,383)
Beginning balance (in shares) at Dec. 31, 2021	[1]		60,433,455
Beginning balance at Dec. 31, 2021		(68,494)	$ 6	540,823	(609,323)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issuance – other		1,908
Net loss		(46,891)
Ending balance (in shares) at Sep. 30, 2022			199,770,659
Ending balance at Sep. 30, 2022		76,115	$ 20	732,309	(656,214)
Beginning balance (in shares) at Mar. 31, 2022			196,803,519
Beginning balance at Mar. 31, 2022		99,286	$ 20	730,649	(631,383)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and warrants – Note 14		(2,226)		(2,226)
Stock-based compensation costs		619		619
Stock issuance - other (in shares)			137,500
Stock issuance – other		158		158
Vesting of restricted stock units (in shares)			460,858
Vesting of restricted stock units		40		40
Net loss		(8,982)			(8,982)
Ending balance (in shares) at Jun. 30, 2022			197,401,877
Ending balance at Jun. 30, 2022		88,895	$ 20	729,240	(640,365)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and warrants – Note 14		(75)		(75)
Stock-based compensation costs		727		727
5-Year Private Warrants transferred to 5-Year Public Warrants		18		18
Stock issuance - other (in shares)			1,714,678
Stock issuance – other		1,749		1,749
Vesting of restricted stock units (in shares)			654,104
Vesting of restricted stock units		650		650
Net loss		(15,849)			(15,849)
Ending balance (in shares) at Sep. 30, 2022			199,770,659
Ending balance at Sep. 30, 2022		76,115	$ 20	732,309	(656,214)
Beginning balance (in shares) at Dec. 31, 2022	[1]		200,270,659
Beginning balance at Dec. 31, 2022		63,306	$ 20	733,437	(670,151)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation costs		608		608
5-Year Private Warrants transferred to 5-Year Public Warrants		531		531
Net loss		(13,909)			(13,909)
Ending balance (in shares) at Mar. 31, 2023			200,270,659
Ending balance at Mar. 31, 2023		50,536	$ 20	734,576	(684,060)
Beginning balance (in shares) at Dec. 31, 2022	[1]		200,270,659
Beginning balance at Dec. 31, 2022		63,306	$ 20	733,437	(670,151)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issuance – other		0
Net loss		(43,510)
Ending balance (in shares) at Sep. 30, 2023			202,132,839
Ending balance at Sep. 30, 2023		22,579	$ 20	736,220	(713,661)
Beginning balance (in shares) at Mar. 31, 2023			200,270,659
Beginning balance at Mar. 31, 2023		50,536	$ 20	734,576	(684,060)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation costs		952		952
5-Year Private Warrants transferred to 5-Year Public Warrants		15		15
Vesting of restricted stock units (in shares)			1,683,362
Net loss		(13,889)			(13,889)
Ending balance (in shares) at Jun. 30, 2023			201,954,021
Ending balance at Jun. 30, 2023		37,614	$ 20	735,543	(697,949)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation costs		640		640
5-Year Private Warrants transferred to 5-Year Public Warrants		37		37
Vesting of restricted stock units (in shares)			178,818
Vesting of restricted stock units		0		0
Net loss		(15,712)			(15,712)
Ending balance (in shares) at Sep. 30, 2023			202,132,839
Ending balance at Sep. 30, 2023		$ 22,579	$ 20	$ 736,220	$ (713,661)
[1]The opening balance of shares of common stock outstanding for both periods presented reflects an increase of 60 shares of common stock for an adjustment made to the Company’s share ledger by its recordkeeper related to a transaction that occurred in May 2020.

UNAUDITED CONDENSED CONSOLIDA_4

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (Parentheticals) - Common Stock	Dec. 31, 2022 shares
Shares outstanding (in shares)	200,270,659	[1]
Revision of Prior Period, Adjustment
Shares outstanding (in shares)	60
[1]The opening balance of shares of common stock outstanding for both periods presented reflects an increase of 60 shares of common stock for an adjustment made to the Company’s share ledger by its recordkeeper related to a transaction that occurred in May 2020.

Company Overview

Company Overview	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Company Overview	Company Overview Hycroft Mining Holding Corporation and its subsidiaries (collectively, “Hycroft”, the “Company”, “we”, “us”, “our”, “it”, or “HYMC”) is a U.S.-based gold and silver company that is focused on exploring and developing the Hycroft Mine in a safe, environmentally responsible, and cost-effective manner. The Hycroft Mine is located in the State of Nevada and the Company’s corporate office is located in Winnemucca, Nevada. The Company restarted pre-commercial scale open pit mining operations at the Hycroft Mine during the second quarter of 2019 and began producing and selling gold and silver during the third quarter of 2019. The Company operated the Hycroft Mine until November 2021, when it discontinued active mining operations as a result of the then-current and expected ongoing cost pressures for many of the reagents and consumables used at the Hycroft Mine and to further determine the most effective processing method for the sulfide ore. In March 2023, the Company, along with its third-party consultants, completed and filed the Hycroft Property Initial Assessment Technical Report Summary Humboldt and Pershing Counties, Nevada (“2023 Hycroft TRS”) that included a mineral resource estimate utilizing a pressure oxidation (“POX”) process for sulfide mineralization and heap leaching process for oxide and transition mineralization. The Company will continue to build on the work and investigate opportunities identified through progressing the technical and data analyses leading up to the 2023 Hycroft TRS. In March 2022, the Company completed an equity private placement and an at-the-market public offering program (“ATM Program”) that raised gross proceeds of $194.4 million before issuance costs. The Company has used and will continue to use a portion of the proceeds from these equity offerings to conduct additional exploration, with a focus on higher-grade opportunities identified during 2021 exploration drilling, and a systematic approach to develop a better understanding of the Hycroft Mine deposit, including potential feeder systems.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of presentation These Unaudited Condensed Consolidated Financial Statements (“Financial Statements”) of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted, pursuant to the rules and regulations of the SEC for interim financial reporting. Accordingly, these Financial Statements do not include all information and footnotes necessary for a comprehensive presentation of financial position, results of operations, or cash flows. These Financial Statements should be read in conjunction with the Company’s Audited Consolidated Financial Statements and the notes thereto as of and for the year ended December 31, 2022 (the “2022 Audited Financial Statements”), filed as a part of the Company’s annual report on Form 10-K filed with the SEC on March 28, 2023. The Company continues to follow the accounting policies set forth in the 2022 Audited Financial Statements, with updates discussed below. In the opinion of management, the accompanying Financial Statements include all adjustments that are necessary for a fair presentation of the Company’s interim financial position, operating results, and cash flows for the periods presented. During the year ended December 31, 2022, the Company completed processing of gold and silver ore previously placed on leach pads prior to ceasing mining operations in November 2021. As a result, the Company did not generate Revenues or incur Cost of sales during the three and nine months ended September 30, 2023. Accordingly, effective January 1, 2023, the Company began reporting amounts for Mine site period costs and Depreciation and amortization as Operating expenses as this presentation aligns with the manner in which the business is currently viewed and managed while the Company conducts activities for developing the Hycroft Mine and recommencing mining operations. Use of estimates The preparation of the Financial Statements requires management to make estimates and assumptions that affect amounts reported in these Financial Statements and accompanying notes. The more significant areas requiring the use of management estimates and assumptions relate to the useful lives of long-lived assets; future mining and processing plans; environmental reclamation and closure costs and timing; deferred taxes and related valuation allowances; estimates of the fair value of liability classified warrants; and estimates of fair value for long-lived assets, Assets held for sale , and financial instruments. The Company bases its estimates on historical experience and other assumptions, including drilling and assay data that are believed to be reasonable at the time the estimate is made. Actual results may differ from amounts estimated in these Financial Statements, and such differences could be material. Accordingly, amounts presented in these Financial Statements may not be indicative of results that may be expected for future periods. Recently adopted accounting pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 changes the way entities measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. For emerging growth companies, the new guidance is effective for annual periods beginning after January 1, 2023. The Company adopted ASU 2016-13 as of January 1, 2023, with no material impact on its Financial Statements or the related disclosures, as all outstanding Accounts receivable have been collected. In April 2019, the FASB issued ASU No. 2019-04, Codification Improvements to Topic 326, Financial Instruments—Credit Losses; Topic 815, Derivatives and Hedging; and Topic 825, Financial Instruments (“ASU 2019-04”). ASU 2019-04 clarifies certain aspects of accounting for credit losses, hedging activities, and financial instruments. For emerging growth companies, the new guidance is effective for annual periods beginning after January 1, 2023. The Company adopted ASU 2019-04 as of January 1, 2023, with no impact on its Financial Statements or the related disclosures, as all outstanding Accounts receivable have been collected, and as such, there is no need to assess allowance for doubtful accounts. In March 2020, the FASB issued authoritative guidance which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate expected to be discontinued because of reference rate reform and was effective for all entities upon issuance on March 12, 2020 through December 31, 2022. ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, defers the expiration date of Topic 848 to December 31, 2024 to realign with the revised cessation date for LIBOR. The guidance permits a company to elect certain optional expedients and exceptions when affected by the changes in reference rate reform. As of July 1, 2023, the Company amended the Second Amended and Restated Credit Agreement, dated as of March 30, 2022, by and between the Company and Sprott Private Resource Lending II (Collector), LP, Sprott Resource Lending Corp., and certain subsidiaries of the Company as guarantors (“Second A&R Agreement”), to replace LIBOR with the Secured Overnight Financing Rate (“SOFR”) by entering into the Second Amendment to Second A&R Agreement (“Second Amendment to Second A&R Agreement”). The Company has elected to adopt the optional expedients, which allow for the update from LIBOR to SOFR in the Second A&R Agreement to be accounted for as a modification rather than an extinguishment. The Company does not expect any further impact to the Financial Statements as the Second A&R Agreement is the only debt instrument that references LIBOR. New accounting pronouncements not yet adopted In March 2022, the FASB issued ASU 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities to Contractual Sale Restrictions (“ASU 2022-03”). For emerging growth companies, the new guidance is effective for annual periods beginning after December 15, 2023. As the Company qualifies as an emerging growth company, the Company plans to take advantage of the deferred effective date afforded to emerging growth companies. The Company is currently evaluating the impact that adopting this update will have on its Financial Statements and related disclosures.

Prepaids and Deposits

Prepaids and Deposits	9 Months Ended
	Sep. 30, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaids and Deposits	Prepaids and Deposits The following table provides the components of current and non-current Prepaids and deposits (in thousands): September 30, December 31, Current prepaids and deposits: Prepaids: Insurance $ 2,181 $ 1,221 Mining claims fees and permit fees 688 940 License fees 376 287 Other 193 154 Deposits 236 238 Total current prepaids and deposits $ 3,674 $ 2,840 Non-current prepaids: Royalty – advance payment on Crofoot Royalty $ 600 $ 600

Materials and Supplies Inventor

Materials and Supplies Inventories, Net	9 Months Ended
	Sep. 30, 2023
Inventory Disclosure [Abstract]
Materials and Supplies Inventories, Net	Materials and Supplies Inventories, Net At both September 30, 2023 and December 31, 2022, Materials and supplies inventorie s , net

Property, Plant and Equipment,

Property, Plant and Equipment, Net	9 Months Ended
	Sep. 30, 2023
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment, Net	Property, Plant, and Equipment, Net The following table provides the components of Property, plant, and equipment, net (in thousands): Depreciation Life September 30, December 31, Production leach pads Units-of-production $ 11,190 $ 11,190 Test leach pads 18 months 6,241 6,241 Process equipment 5 - 15 years 17,556 17,302 Buildings and leasehold improvements 10 years 9,403 9,280 Mine equipment 5 - 7 years 5,070 4,872 Vehicles 3 - 5 years 1,700 1,578 Furniture and office equipment 7 years 522 370 Mineral properties (1) Units-of-production 50 — Construction in progress and other 35,655 35,721 87,387 86,554 Less, accumulated depreciation and amortization (33,854) (31,722) Total $ 53,533 $ 54,832 (1) During the nine months ended September 30, 2023, the Company purchased a 50% undivided interest in patented mining claims located in Pershing County, Nevada for cash consideration of $0.1 million. During the three and nine months ended September 30, 2023, there were no events or changes in circumstances that would have required the Company to evaluate the current carrying value of its Property, plant, and equipment, net for recoverability. Depreciation expense related to Property, plant, and equipment, net was $0.7 million and $2.2 million for the three and nine months ended September 30, 2023, respectively, and $0.8 million and $2.7 million for the three and nine months ended September 30, 2022, respectively.

Restricted Cash

Restricted Cash	9 Months Ended
	Sep. 30, 2023
Cash and Cash Equivalents [Abstract]
Restricted Cash	Restricted Cash The following table provides the components of Restricted cash (in thousands): September 30, December 31, Reclamation and other surety bond cash collateral $ 35,034 $ 33,929 Credit card collateral 53 53 Total $ 35,087 $ 33,982 As of September 30, 2023 and December 31, 2022, reclamation and other surety bond cash collateral was $35.0 million and $33.9 million, respectively. As of both September 30, 2023 and December 31, 2022, credit card collateral was $0.1 million. As of September 30, 2023 and December 31, 2022, the Company’s surface management surety bonds totaled $58.7 million, of which $58.3 million secured the financial assurance requirements for the Hycroft Mine. The remaining portion is related to the financial assurance requirements for the adjacent water supply well field and exploration. Events or circumstances that would necessitate the guarantor’s performance include a deteriorating financial condition or a breach of contract. Periodically, the Company may need to provide collateral to support these instruments. When the specified requirements are met, the party holding the related instrument cancels and/or returns it to the issuing entity. The Company is confident that it currently complies with all relevant bonding obligations and will be able to meet future bonding requirements through existing methods or alternative solutions as they arise. During the three and nine months ended September 30, 2023, the Company earned $0.4 million and $1.1 million, respectively, of Interest income on a portion of its cash collateral. During the three and nine months ended September 30, 2022, the Company did not earn Interest income on cash collateral. Interest received on cash collateral balances is restricted as to its use and is included as an increase to Restricted cash with a corresponding recognition of Interest income when earned.

Assets Held For Sale

Assets Held For Sale	9 Months Ended
	Sep. 30, 2023
Asset Retirement Obligation Disclosure [Abstract]
Assets Held For Sale	Assets Held For Sale As of September 30, 2023 and December 31, 2022, the Company’s Assets held for sale was comprised of equipment not-in-use of $7.1 million In August 2022, the Company entered into an Equipment Purchase Agreement to sell one ball mill and one semi-autogenous mill (“SAG mill”) for consideration of $12.0 million. The Company amended the Equipment Purchase Agreement in December 2022 to include one sub-station transformer for an additional amount of $1.6 million, for a total amended purchase price of $13.6 million, of which the Company had received payments totaling $1.2 million as of September 30, 2023. The Company further amended the Equipment Purchase Agreement in January 2023 to permit the buyer to extend the final payment of $12.5 million to June 30, 2023 at an interest rate of 5% per annum on the outstanding balance of the ball mill and SAG mill from January 1, 2023 through March 31, 2023 and 7.5% per annum on any outstanding balance from April 1, 2023 until June 30, 2023. In May 2023, the Company and the buyer agreed to further extend the final payment up to June 30, 2024 for an additional payment of $0.1 million and payments of up to $0.4 million for additional required non-refundable payments of $0.1 million for each $1.0 million of funds raised by buyer through equity or equity-like raises as described in the amendment. The Company will continue to receive interest of 7.5% per annum on the outstanding balance through June 30, 2024. Interest is calculated and paid monthly. The balance outstanding as of September 30, 2023 was $12.4 million and during the three and nine months ended September 30, 2023, the Company received $0.2 million and $0.6 million of interest, respectively, which is included in Interest income. The Company is also being reimbursed by the buyer for certain holding costs related to the ball mill, SAG mill, and sub-station transformer. These costs are recorded as an offset to the costs incurred within Mine site period costs. As of September 30, 2023, the Company held title to and risk of loss of the ball mill, SAG mill, and sub-station transformer and, as such, payments received to-date of $1.2 million toward the purchase of these assets have been included in Contract liabilities. See Note 10 – Contract Liabilities for additional details.

Accounts Payable and Accrued Ex

Accounts Payable and Accrued Expenses	9 Months Ended
	Sep. 30, 2023
Payables and Accruals [Abstract]
Accounts Payable and Accrued Expenses	Accounts Payable and Accrued Expenses The following table provides the components of Accounts payable and accrued expenses (in thousands): September 30, December 31, Accounts payable $ 911 $ 1,773 Accrued expenses 1,631 3,871 Total $ 2,542 $ 5,644 During the year ended December 31, 2021, the Company recorded a loss of $2.1 million related to a firm purchase commitment for crusher liners. The Company had entered into an agreement to purchase the crusher liners under consignment over a period of three years, commencing in August 2020. This loss represented the unfulfilled commitment obligation outstanding as of the date the Company terminated the agreement and was initially recognized in Accounts payable and accrued expenses with a corresponding recorded loss in the Statement of Operations. During the nine months ended September 30, 2023, the Company reached a settlement agreement with the vendor, whereby the Company agreed to pay $1.0 million to the vendor and in return, the vendor agreed to release the Company from any future obligations. As a result of the negotiated settlement, the Company recorded a Gain on settlement of accrued liability of $1.2 million during the nine months ended September 30, 2023.

Debt, Net

Debt, Net	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Debt, Net	Debt, Net Second Amendment to Sprott Credit Agreement On March 11, 2022, the Company entered into an agreement (the “March 2022 Sprott Agreement”) with Sprott Private Resource Lending II (Collector), L.P. (the “Lender”), as arranger, with respect to the Amended and Restated Credit Agreement, dated as of May 29, 2020 (as amended, restated, supplemented or otherwise modified from time to time, the “Sprott Credit Agreement”) among the Company, the Lender, certain subsidiaries of the Company, as guarantors and the other parties thereto. On March 30, 2022, the Company, the guarantors and the Lender entered into the Second A&R Agreement, that: (i) extended the maturity date for the principal obligation under the Sprott Credit Facility by two years, to May 31, 2027; (ii) provided for the Company to prepay principal under the facility in the amount of $10.0 million promptly upon the Company’s receipt of cash proceeds from the Private Placement Offering with American Multi-Cinema, Inc. (“AMC”), a significant stockholder of the Company and 2176423 Ontario Limited, a significant stockholder of the Company and an entity affiliated with Eric Sprott (the “Initial Equity Proceeds Prepayment”) (see Note 14 – Stockholders’ Equity for additional details); (iii) provided for the Company to prepay principal under the Sprott Credit Agreement in the amount of $13.9 million (representing 10% of the subsequent issuance of its equity interests consummated on or prior to March 31, 2022) (the “Subsequent Equity Proceeds Prepayments”); and (iv) eliminated the prepayment premiums otherwise payable with respect to the Initial Equity Proceeds Prepayment, the Subsequent Equity Proceeds Prepayments and all future prepayments of principal under the Sprott Credit Facility. In addition, the Company’s obligations: (i) to prepay principal with proceeds of asset sales will be credited/offset by the aggregate amount of Initial Equity Proceeds Prepayment and the Subsequent Equity Proceeds Prepayments ($23.9 million); and (ii) to maintain a minimum amount of Unrestricted Cash (as defined in the Second A&R Agreement) was increased to $15.0 million. The Company: (i) paid the previously deferred additional interest of $0.5 million; (ii) made the Initial Equity Proceeds Prepayment of $10.0 million and paid in-kind a $3.3 million fee in connection with the modification and capitalized it to principal on March 16, 2022; and (iii) made the Subsequent Equity Proceeds Prepayment of $13.9 million on March 30, 2022. The terms of the Additional Interest remained unchanged from the Sprott Credit Agreement. The Company accounted for the Second A&R Agreement as a debt modification as the Second A&R Agreement did not result in debt that was substantially different. Second Amendment to the Second A&R Agreement On July 1, 2023, the Company entered into the Second Amendment to the Second A&R Agreement, by and between the Company, the Lender, Sprott Resource Lending Corp. (“Arranger” and together with the Lender, the “Sprott Parties”), and certain subsidiaries of the Company as guarantors. The Second Amendment to the Second A&R Agreement amends the Second A&R Agreement dated March 30, 2022, which in turn amended the Amended and Restated Credit Agreement, dated as of May 29, 2020 (as amended, restated, supplemented or otherwise modified from time to time, the “Sprott Credit Agreement”). The Second Amendment to the Second A&R Agreement: (i) corrects a cross-reference error; and (ii) implements a replacement of LIBOR with three-month Term SOFR effective July 1, 2023. Amendment to the 10% Senior Secured Notes and Note Exchange Agreement On March 14, 2022, the Company entered into an amendment to the 10% Senior Secured Notes and Note Exchange Agreement (the “Note Amendment”), with (i) certain direct and indirect subsidiaries of the Company as guarantors; (ii) holders of the 10% Senior Secured Notes (the “Subordinated Notes”), including certain funds affiliated with, or managed by, Mudrick Capital Management, L.P (“Mudrick”), Whitebox Advisors, LLC (“Whitebox”), Highbridge Capital Management, LLC (“Highbridge”), and Aristeia Capital, LLC (collectively, the “Amending Holders”); and (iii) Wilmington Trust, National Association, in its capacity as collateral agent. The Note Amendment amends the Note Exchange Agreement dated as of January 13, 2020 (the “Note Exchange Agreement”) and the Subordinated Notes issued thereunder in order to extend the maturity date of the Subordinated Notes from December 1, 2025 to December 1, 2027. The Note Amendment also removed the requirement that a holder receive the consent of the Company and the other holders in order to transfer any Subordinated Note. The Amending Holders constituted all of the holders of the Subordinated Notes. The Note Amendment became effective upon the closing of a private placement upon receipt of $55.9 million gross cash proceeds (before deduction of fees and expenses). Debt covenants The Company’s debt agreements contain representations and warranties, events of default, restrictions and limitations, reporting requirements, and covenants that are customary for agreements of these types. As of September 30, 2023, the Company was in compliance with all financial covenants under its debt agreements. Debt balances The following table summarizes the components of Debt, net (in thousands): September 30, December 31, Debt, net, current: Sprott Credit Agreement $ 2,200 $ 2,200 Notes payable 128 128 Total $ 2,328 $ 2,328 Debt, net, non-current: Sprott Credit Agreement, net of original issue discount of $8.8 million, net of amortization $ 42,518 $ 42,503 Subordinated Notes 99,160 92,080 Notes payable 108 205 Less, debt issuance costs (1,745) (2,098) Total $ 140,041 $ 132,690 The following table summarizes the Company’s contractual payments of Debt, net , including current maturities, for the five years subsequent to September 30, 2023 (in thousands): October 1, 2023 through December 31, 2023 $ 581 2024 2,329 2025 1,154 2026 22 2027 148,850 Total 152,936 Less, original issue discount, net of accumulated amortization of $11.3 million (8,822) Less, debt issuance costs, net of accumulated amortization of $3.2 million (1,745) Total debt, net $ 142,369 Interest expense The following table summarizes the components of recorded Interest expense (in thousands): Three Months Ended Nine Months Ended 2023 2022 2023 2022 Sprott Credit Agreement (1) $ 1,600 $ 1,261 $ 4,620 $ 3,848 Subordinated Notes (2) 2,418 2,514 7,085 7,279 Amortization of original issue discount (3) 562 561 1,665 2,279 Amortization of debt issuance costs (3) 117 117 346 571 Other interest expense 1 6 5 26 Total $ 4,698 $ 4,459 $ 13,721 $ 14,003 (1) The Sprott Credit Agreement bears interest monthly at a floating rate not less than 8.5% and the current effective interest rate is 14.2%. (2) The Subordinated Notes bear interest at 10.0% per annum (non-cash), payable in-kind on a quarterly basis.

Contract Liabilities

Contract Liabilities	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Contract Liabilities	Contract Liabilities The following table summarizes the components of Contract liabilities (in thousands): September 30, December 31, Assets held for sale Equipment not in use (1) $ 1,150 $ 1,050 Total $ 1,150 $ 1,050 (1) As of September 30, 2023, the Company has received payments totaling $1.2 million in accordance with the amended sales agreement for one SAG mill, one ball mill, and one sub-station transformer. The Company will receive a final payment of $12.4 million no later than June 30, 2024. See Note 7 – Assets Held for Sale for additional details. The table below is a summary of the Company’s gold and silver sales (in thousands, except ounces sold amounts): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Amount Ounces Amount Ounces Amount Ounces Amount Ounces Gold sales $ — — $ 8,456 4,817 $ — — $ 21,057 11,557 Silver sales — — 302 15,131 — — 698 32,010 Total $ — $ 8,758 $ — $ 21,755

Other Liabilities

Other Liabilities	9 Months Ended
	Sep. 30, 2023
Other Liabilities Disclosure [Abstract]
Other Liabilities	Other Liabilities The following table summarizes the components of Other liabilities (in thousands): September 30, December 31, Other liabilities, current: Accrued compensation $ 2,399 $ 2,868 Excise tax liability — 96 Accrued directors fees 39 36 Operating lease liability — 11 Total $ 2,438 $ 3,011 Other liabilities, non-current Operating lease liability $ 17 $ —

Asset Retirement Obligation

Asset Retirement Obligation	9 Months Ended
	Sep. 30, 2023
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligation	Asset Retirement Obligation The following table summarizes changes in the Company’s Asset retirement obligation (“ARO”) (in thousands): September 30, 2023 December 31, 2022 Balance, beginning of period $ 10,302 $ 5,193 Accretion 558 408 Change in estimates — 4,701 Balance, end of period $ 10,860 $ 10,302 During the three and nine months ended September 30, 2023, the Company did not incur additional reclamation obligations associated with additional disturbances, other regulatory requirements, or changes in estimates. The Company estimates that no significant reclamation expenditures associated with the ARO will be made until 2024 and that reclamation work will be completed by the end of 2065. During the three and nine months ended September 30, 2023, there were no events or changes to the Company’s regulatory environment, new or additional disturbances, or changes in investments that would require a change to the Company’s ARO. As a result, the Company did not record any adjustments to the ARO.

Warrant Liabilities

Warrant Liabilities	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Warrant Liabilities	Warrant Liabilities The following tables summarize the Company’s outstanding warrants (in thousands, except warrant amounts): Balance at Fair Value Transfers to an Balance at December 31, 2021 Adjustments (1) 5-Year Public Warrants September 30, 2022 Warrants Amount Warrants Amount Warrants Amount Warrants Amount 5-Year Private Warrants 9,478,830 $ 664 — $ 482 (75,201) $ (18) 9,403,629 $ 1,128 Seller Warrants (1) 12,721,901 5 — — — — 12,721,901 5 Total 22,200,731 $ 669 — $ 482 (75,201) $ (18) 22,125,530 $ 1,133 Balance at Fair Value Transfers to Balance at December 31, 2022 Adjustments (1) 5-Year Public Warrants September 30, 2023 Warrants Amount Warrants Amount Warrants Amount Warrants Amount 5-Year Private Warrants 9,126,515 $ 786 — $ (182) (8,159,424) $ (583) 967,091 $ 21 (1) Liability classified warrants are subject to fair value remeasurement at each balance sheet date in accordance with FASB Accounting Standard Codification (“ASC”) Topic 815-40, Contracts on Entity’s Own Equity. As a result, fair value adjustments related exclusively to the Company’s liability classified warrants. See Note 20 – Fair Value Measurements for further detail on the fair value of the Company’s liability classified warrants. The following table summarizes additional information on the Company’s outstanding warrants as of September 30, 2023: Exercise Price Exercise Period Expiration Date Warrants Outstanding (1) 5-Year Private Warrants $ 11.50 5 years May 29, 2025 967,091 (1) On October 22, 2022, the Seller Warrants expired pursuant to their terms and as of such time were no longer exercisable or outstanding. The remaining 5-Year Private Warrants outstanding totaled 9,403,629 at the time of the Seller Warrants expiration. 5-Year Private Warrants The 5-Year Private Warrants cannot be redeemed and can be exercised on a cashless basis if the 5-Year Private Warrants are held by the initial purchasers or their permitted transferees. If the 5-Year Private Warrants are transferred to someone other than the initial purchasers or their permitted transferees, such warrants become redeemable by the Company under substantially the same terms as the 5-Year Public Warrants. Since the original issue of private warrants, transfers from 5-Year Private Warrants totaled 9,272,909, including 8,159,424 during the nine months ended September 30, 2023, and therefore became classified as 5-Year Public Warrants.

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Stockholders' Equity	Stockholders’ Equity Amendment to the Company’s Second Amended and Restated Certificate of Incorporation On March 11, 2022, the Board approved an amendment to the Company’s Second Amended and Restated Certificate of Incorporation increasing the number of authorized shares of the Company’s common stock by 1,000,000,000 to a total of 1,400,000,000 (the “Certificate of Incorporation Amendment”) and directed that the Certificate of Incorporation Amendment be submitted for consideration by the Company’s stockholders. On March 15, 2022, AMC, 2176423 Ontario Limited, and entities affiliated with Mudrick, who together constituted the holders of a majority of the issued and outstanding common stock, approved the Certificate of Incorporation Amendment by written consent. The Certificate of Incorporation Amendment became effective upon filing of the Certificate of Incorporation Amendment with the Delaware Secretary of State on April 22, 2022, 20 days after the Company commenced distribution of an Information Statement on Schedule 14C to the stockholders of the Company. Common stock Private placement offering On March 14, 2022, the Company entered into subscription agreements with AMC and 2176423 Ontario Limited pursuant to which the Company agreed to sell the entities an aggregate of 46,816,480 units at a purchase price per unit of $1.193 with each unit consisting of one share of the Company’s common stock and one warrant to purchase a share of common stock and the shares issuable upon exercise of the Warrants (the “Warrant Shares”), providing for a total purchase price of approximately $55.9 million (the “Private Placement Offering”). The Warrants have an exercise price of $1.068 per Warrant Share and will expire five years after issuance. On March 15, 2022, the Private Placement Offering closed and the Company received gross proceeds of $55.9 million before deducting expenses incurred in connection therewith. Net proceeds were $53.6 million, after deducting legal and other fees of $2.3 million (including a non-cash $1.8 million financial advisor fee related to the Private Placement Offering). At-the-market offering On March 15, 2022, the Company implemented an ATM Program by entering into an At Market Issuance Sales Agreement (“Sales Agreement”) with B. Riley Securities, Inc. (the “Agent”). Under the terms of the Sales Agreement, the Company may from time to time through the Agent, acting as sales agent or principal, offer and sell shares of its Class A common stock, par value $0.0001 per share, having a gross sales price of up to $500.0 million. Shares of common stock sold under the Sales Agreement were issued pursuant to the Company’s shelf registration statement on Form S-3 (No. 333-257567) that the SEC declared effective on July 13, 2021, including the prospectus, dated July 13, 2021, and the prospectus supplement, dated March 15, 2022. The Company received total gross proceeds, before deducting fees and expenses of the ATM Program, of $138.6 million from the sale of 89,553,584 shares of the Company’s common stock, and approximately $361.4 million of shares of common stock remain available for future issuance under the Sales Agreement. Net proceeds to date, after deducting commissions and fees of $5.0 million were $133.5 million. Equity Classified Warrants The following tables summarize the Company’s outstanding equity classified warrants included in Additional paid-in capital on the Condensed Consolidated Balance Sheets (in thousands, except warrant amounts): Balance at December 31, 2021 Warrant Issuances Transfers from 5-Year Private Warrants (1) Balance at September 30, 2022 Warrants Amount Warrants Amount Warrants Amount Warrants Amount 5-Year Public Warrants 24,811,068 $ 28,912 — $ — 75,201 $ 18 24,886,269 $ 28,930 Public Offering Warrants 9,583,334 12,938 — — — — 9,583,334 12,938 Private Placement Offering Warrants — — 46,816,480 25,604 — — 46,816,480 25,604 Total 34,394,402 $ 41,850 46,816,480 $ 25,604 75,201 $ 18 81,286,083 $ 67,472 Balance at December 31, 2022 Transfers from 5-Year Private Warrants (1) Balance at September 30, 2023 Warrants Amount Warrants Amount Warrants Amount 5-Year Public Warrants 25,163,383 $ 28,954 8,159,424 $ 583 33,322,807 $ 29,537 Public Offering Warrants 9,583,334 12,938 — — 9,583,334 12,938 Private Placement Offering Warrants 46,816,480 25,604 — — 46,816,480 25,604 Total 81,563,197 $ 67,496 8,159,424 $ 583 89,722,621 $ 68,079 (1) See Note 13 – Warrant Liabilities for additional details regarding transfers from 5-Year Private Warrants. As discussed above, pursuant to the Private Placement Offering, the Company issued 46,816,480 Warrants with an exercise price of $1.068 per Warrant Share that expire five years from the date of issuance. The Warrants are deemed freestanding, equity-linked financial instruments that do not require liability classification under ASC Topic 480-10 Overall Debt because: (1) they are not mandatory redeemable shares; (2) they do not obligate the Company to buy back shares; and (3) they are not settled in a variable number of shares. As a result, the Company allocated the gross proceeds of $55.9 million from the Private Placement Offering between the Warrants and common stock as of the closing date of March 15, 2022. The Company used the Black-Scholes option pricing model to determine the fair value of the Warrants upon the issuance date using the following assumptions: March 15, 2022 Expected term (years) 5 Risk-free interest rate 2.1 % Expected volatility 118.4 % Expected dividend yield — The following table summarizes additional information on the Company’s outstanding warrants as of September 30, 2023: Exercise price Exercise period Expiration date Warrants outstanding 5-Year Public Warrants $ 11.50 5 years May 29, 2025 33,322,807 Public Offering Warrants $ 10.50 5 years October 6, 2025 9,583,334 Private Placement Offering Warrants $ 1.068 5 years March 15, 2027 46,816,480

Revenues

Revenues	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Revenues	Contract Liabilities The following table summarizes the components of Contract liabilities (in thousands): September 30, December 31, Assets held for sale Equipment not in use (1) $ 1,150 $ 1,050 Total $ 1,150 $ 1,050 (1) As of September 30, 2023, the Company has received payments totaling $1.2 million in accordance with the amended sales agreement for one SAG mill, one ball mill, and one sub-station transformer. The Company will receive a final payment of $12.4 million no later than June 30, 2024. See Note 7 – Assets Held for Sale for additional details. The table below is a summary of the Company’s gold and silver sales (in thousands, except ounces sold amounts): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Amount Ounces Amount Ounces Amount Ounces Amount Ounces Gold sales $ — — $ 8,456 4,817 $ — — $ 21,057 11,557 Silver sales — — 302 15,131 — — 698 32,010 Total $ — $ 8,758 $ — $ 21,755

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation HYMC 2020 Performance and Incentive Pay Plan (“PIPP”) On June 2, 2022, the Company’s stockholders approved an amendment to the PIPP that increased the number of authorized shares of common stock available for issuance by 12.0 million shares of common stock. As a result, 14,508,002 shares are authorized for issuance under the PIPP. As of September 30, 2023, all awards granted under the PIPP were in the form of restricted stock units to employees, directors, or consultants of the Company. As of September 30, 2023, there were 5,135,882 shares available for issuance under the PIPP. For restricted stock units granted prior to August 2020, a price per share was not determined upon the grant date. The number of shares of common stock of the Company to be issued upon vesting was calculated on the vesting date that was either the second or third anniversary of the date of the grant or the annual date the compensation committee determined the achievement of the corporate performance targets. Such unvested restricted stock unit awards were included in Other liabilities until each vesting date when the amount was transferred to Additional paid-in capital . As of September 30, 2023 and 2022, there were no remaining restricted stock unit grants outstanding required to be accounted for as Other liabilities . Prior to each vesting date, the Company estimated the number of shares of common stock to be issued upon vesting using the closing share price of its common stock on the last day of each reporting period as quoted on the Nasdaq Capital Market. The following table summarizes the Company’s unvested share awards outstanding under the PIPP: Nine Months Ended 2023 2022 Unvested at beginning of year (1) 3,547,153 2,210,911 Granted 5,016,912 3,007,069 Impact of fluctuations in share price (2) — (515,198) Canceled/forfeited (600,527) (282,500) Vested (1,831,028) (1,141,980) Unvested end of period (1) 6,132,510 3,278,302 (1) As of September 30, 2022, unvested at the beginning of year and unvested end of period includes liability-based awards for which the number of units awarded was not determined until the vesting date. The number of liability-based award units included in this amount are estimated using the market value of the Company’s common shares as of the end of each reporting period. (2) As of September 30, 2022, the impact of fluctuations in share price represents the difference between liability-based awards estimated as of June 30, 2022 and December 31, 2021.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s anticipated annual tax rate is impacted primarily by the amount of taxable income associated with each jurisdiction in which its income is subject to income tax and permanent differences between the financial statement carrying amounts and tax basis of assets and liabilities. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The Company incurred no net income tax expense or benefit for the three and nine months ended September 30, 2023 and 2022. The effective tax rate for both the three and nine months ended September 30, 2023 and 2022 was Nil. The effective tax rate differed from the statutory rate during each period primarily due to changes in the valuation allowance established to offset net deferred tax assets.

Loss Per Share

Loss Per Share	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Loss Per Share	Loss Per Share The table below summarizes the Company’s basic and diluted loss per share calculations (in thousands, except share and per share amounts): Three Months Ended Nine Months Ended 2023 2022 2023 2022 Net loss $ (15,712) $ (15,849) $ (43,510) $ (46,891) Weighted average shares outstanding Basic 201,954,021 199,207,092 201,021,368 159,607,217 Diluted 201,954,021 199,207,092 201,021,368 159,607,217 Basic loss per common share $ (0.08) $ (0.08) $ (0.22) $ (0.29) Diluted loss per common share $ (0.08) $ (0.08) $ (0.22) $ (0.29) Basic and diluted net loss per share is computed by dividing the net loss for the period by the weighted average number of shares of common stock outstanding during the period. Due to the Company’s net loss during the three and nine months ended September 30, 2023 and 2022, respectively, there was no dilutive effect of common stock equivalents because the effects of such would have been anti-dilutive. The following table summarizes the shares excluded from the weighted average number of shares of common stock outstanding, as the impact would be anti-dilutive (in thousands): September 30, 2023 2022 Warrants (1) 90,690 94,296 Restricted stock units 6,133 3,278 Total 96,823 97,574 (1) See Note 13 – Warrant Liabilities for adjustments to the Seller Warrants for common stock issuable upon exercise.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Segment Information	Segment Information The Company’s reportable segments are comprised of operating units that have revenues, earnings or losses, or assets exceeding 10% of the respective consolidated totals, and are consistent with the Company’s management reporting structure. Each segment is reviewed by the executive decision-making group to make decisions about allocating the Company’s resources and to assess their performance. The tables below summarize the Company’s segment information (in thousands): Three Months Ended September 30, Nine Months Ended September 30, Hycroft Mine Corporate and Other Total Hycroft Mine Corporate and Other Total 2023 Operating costs $ 10,806 $ 2,765 $ 13,571 $ 26,861 $ 9,810 $ 36,671 Loss from operations (10,806) (2,765) (13,571) (26,861) (9,810) (36,671) Interest expense – Note 9 — (4,698) (4,698) — (13,721) (13,721) Interest income 638 1,462 2,100 1,714 4,445 6,159 Fair value adjustment to warrants – Notes 10 and 18 — 1 1 — 182 182 Gain on sale of equipment and supplies inventories, net of commissions 456 — 456 541 — 541 Net loss $ (9,712) $ (6,000) $ (15,712) $ (24,606) $ (18,904) $ (43,510) 2022 Revenue - Note 14 $ 8,758 $ — $ 8,758 $ 21,755 $ — $ 21,755 Cost of sales 11,237 — 11,237 35,026 — 35,026 Other operating costs 7,113 3,032 10,145 8,506 11,352 19,858 Loss from operations (9,592) (3,032) (12,624) (21,777) (11,352) (33,129) Loss on sale of equipment and supplies inventories, net of commissions (725) — (725) (123) — (123) Interest expense – Note 9 (3) (4,456) (4,459) (9) (13,994) (14,003) Fair value adjustments to warrants – Notes 10 and 18 — 1,133 1,133 — (482) (482) Interest income 153 673 826 173 673 846 Net loss $ (10,167) $ (5,682) $ (15,849) $ (21,736) $ (25,155) $ (46,891) September 30, 2023 December 31, 2022 Hycroft Mine Corporate and Other Total Hycroft Mine Corporate and Other Total Total Assets $ 74,746 $ 137,067 $ 211,813 $ 102,057 $ 146,897 $ 248,954

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Recurring fair value measurements The following table sets forth by level within the fair value hierarchy, the Company’s liabilities measured at fair value on a recurring basis (in thousands). Hierarchy September 30, December 31, 5-Year Private Warrants 2 $ 21 $ 786 The 5-Year Private Warrants are valued using a Black-Scholes model that requires a variety of inputs including the Company's stock price, the strike price of the 5-Year Private Warrants, the risk-free rate, and the implied volatility. As the terms of the 5-Year Private Warrants are identical to the terms of the 5-Year Public Warrants except that the 5-Year Private Warrants, while held by certain holders or their permitted transferees, are precluded from mandatory redemption and are entitled to be exercised on a “cashless basis” at the holder’s election, the implied volatility used in the Black-Scholes model is calculated using a Monte-Carlo model of the 5-Year Public Warrants that factors in the restrictive redemption and cashless exercise features of the 5-Year Private Warrants. The Company updates the fair value calculation on at least a quarterly basis, or more frequently if changes in circumstances and assumptions indicate a change from the existing carrying value. Items disclosed at fair value Debt, net The Sprott Credit Agreement and the Subordinated Notes are privately held and, as such, there is no public market or trading information available for such debt instruments. As of September 30, 2023 and December 31, 2022, the fair value of the Company’s debt instruments was $118.6 million and $130.7 million, respectively, compared to the carrying value of $141.7 million and $134.7 million as of September 30, 2023 and December 31, 2022, respectively. The fair value of the principal of the Company’s debt instruments, including capitalized interest, was estimated using a market approach in which pricing information for publicly traded, non-convertible debt instruments with speculative ratings were analyzed to derive a mean trading multiple to apply to the September 30, 2023 balances.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	9 Months Ended
	Sep. 30, 2023
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information	Supplemental Cash Flow Information The following table provides supplemental cash flow information (in thousands): Nine Months Ended September 30, 2023 2022 Cash interest paid $ 4,625 $ 3,858 Significant non-cash financing activities: Debt issuance costs paid in-kind — 3,300 Liability based restricted stock units transferred to equity — 727 Stock issuance – other — 1,908

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal proceedings From time to time the Company may be involved in various legal actions related to our business, some of which are class action lawsuits. The Company does not believe, based on currently available information, that contingencies related to any pending or threatened legal matter will have a material adverse effect on the Company’s Financial Statements, although a contingency could be material to the Company’s results of operations or cash flows for a particular period depending on its results of operations and cash flows for such period. Regardless of the outcome, litigation can have a material adverse impact on the Company because of defense and settlement costs, diversion of management resources, and other factors. The Company expenses legal fees and other costs associated with legal proceedings as incurred. The Company assessed, in conjunction with its legal counsel, the need to record a liability related to the Complaints and determined that a loss was not probable nor reasonably estimable. Litigation accruals are recorded when, and if, it is determined that a loss related matter is both probable and reasonably estimable. Material loss contingencies that are reasonably possible of occurrence, if any, are subject to disclosure. No losses have been recorded during the three and nine months ended September 30, 2023 and 2022 with respect to litigation or loss contingencies. Insurance The Company has deductible-based insurance policies for certain losses related to general liability, workers’ compensation, automobile coverage, and directors and officers. The Company records accruals for contingencies related to its insurance policies when it is probable that a liability has been incurred and the amount can be reasonably estimated. These accruals are adjusted periodically as assessments change or additional information becomes available. Insurance losses for claims filed and claims incurred but not reported are accrued based upon estimates of the aggregate liability for uninsured claims using historical loss development factors and actuarial assumptions followed in the insurance industry. Financial commitments and contingencies not recorded in the Financial Statements As of September 30, 2023 and December 31, 2022, the Company’s off-balance sheet arrangements consisted of a net smelter royalty arrangement and a net profit royalty arrangement. Crofoot Royalty A portion of the Hycroft Mine is subject to a 4% net profit royalty be paid to the previous owner of certain patented and unpatented mining claims (“Crofoot Royalty”). The mining lease also requires an annual advance payment of $120,000 every year mining occurs on the leased claims. All advance annual payments are credited against the future payments due under the 4% net profit royalty. An additional payment of $120,000 is required for each year total tons mined on the leased claims exceeds 5.0 million tons. As the Company ceased mining operations in November 2021, the Company was not required to pay the annual advance payment of $120,000 in 2022 or 2023. The total payments due under the mining lease are capped at $7.6 million, of which the Company has paid or accrued $3.3 million and included $0.6 million in Prepaids in the Unaudited Condensed Consolidated Balance Sheets as of September 30, 2023. Net smelter royalty Pursuant to the Sprott Royalty Agreement in which the Company received cash consideration in the amount of $30.0 million, the Company granted a perpetual royalty equal to 1.5% of the Net Smelter Returns from the Hycroft Mine, payable monthly. The royalty is accounted for as a deferred gain liability. Net Smelter Returns for any given month are calculated as Monthly Production multiplied by the Monthly Average Gold Price and the Monthly Average Silver Price, minus Allowable Deductions, as such terms are defined in the Sprott Royalty Agreement. The Company is required to remit royalty payments to the payee free and clear and without any present or future deduction, withholding, charge or levy on account of taxes, except Excluded Taxes as such term is defined in the Sprott Royalty Agreement. At both September 30, 2023 and December 31, 2022, the estimated net present value of the Company’s net smelter royalty was $146.7 million. The net present value of the Company’s net smelter royalty was modeled using the following level 3 inputs: (i) market consensus inputs for future gold and silver prices; (ii) a precious metals industry consensus discount rate of 5.0%; and (iii) estimates of the Hycroft Mine’s life-of-mine gold and silver production volumes and timing.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2023
Related Party Transactions [Abstract]
Related Party Transactions	Related Party TransactionsAs of September 30, 2023, Ausenco Engineering South USA, Inc. (“Ausenco”) and AMC were considered related parties. The Company’s President and Chief Executive Officer is currently a non-executive director for Ausenco’s parent company Board of Directors. Additionally, an AMC representative serves on the Company’s Board of Directors. During the three and nine months ended September 30, 2023, the Company paid an aggregate of $0.1 million to Ausenco for the preparation of the 2023 Hycroft TRS and AMC for director fees. During the three and nine months ended September 30, 2022, the Company paid $0.1 million and $1.2 million to Ausenco for work performed on preparing an Acid POX milling technical study and Nil and $0.1 million to AMC for director fees. As of September 30, 2023, AMC is entitled to receive 180,069 shares of common stock upon the future vesting of restricted stock units. Certain amounts of the Company’s indebtedness have historically, and with regard to the $80.0 million of Subordinated Notes, been held by five financial institutions. As of September 30, 2023, none of the financial institutions held more than 10% of the common stock of the Company. As of September 30, 2022, one of the financial institutions, Mudrick, held more than 10% of the common stock of the Company and, as a result, was considered a related party in accordance with ASC 850, Related Party Disclosures . For the three and nine months ended September 30, 2022, Interest expense included $1.0 million and $3.0 million, respectively, for the debt held by Mudrick and as of December 31, 2022, Mudrick held $42.9 million of Debt, net

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsOn the October 26, 2023, the Company announced a reverse stock split with a ratio of 1-for-10. The reverse stock split is scheduled to go into effect on November 14, 2023.The earnings per share figures herein have not been adjusted.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation These Unaudited Condensed Consolidated Financial Statements (“Financial Statements”) of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted, pursuant to the rules and regulations of the SEC for interim financial reporting. Accordingly, these Financial Statements do not include all information and footnotes necessary for a comprehensive presentation of financial position, results of operations, or cash flows. These Financial Statements should be read in conjunction with the Company’s Audited Consolidated Financial Statements and the notes thereto as of and for the year ended December 31, 2022 (the “2022 Audited Financial Statements”), filed as a part of the Company’s annual report on Form 10-K filed with the SEC on March 28, 2023. The Company continues to follow the accounting policies set forth in the 2022 Audited Financial Statements, with updates discussed below. In the opinion of management, the accompanying Financial Statements include all adjustments that are necessary for a fair presentation of the Company’s interim financial position, operating results, and cash flows for the periods presented. During the year ended December 31, 2022, the Company completed processing of gold and silver ore previously placed on leach pads prior to ceasing mining operations in November 2021. As a result, the Company did not generate Revenues or incur Cost of sales during the three and nine months ended September 30, 2023. Accordingly, effective January 1, 2023, the Company began reporting amounts for Mine site period costs and Depreciation and amortization as Operating expenses as this presentation aligns with the manner in which the business is currently viewed and managed while the Company conducts activities for developing the Hycroft Mine and recommencing mining operations.
Use of estimates	Use of estimates The preparation of the Financial Statements requires management to make estimates and assumptions that affect amounts reported in these Financial Statements and accompanying notes. The more significant areas requiring the use of management estimates and assumptions relate to the useful lives of long-lived assets; future mining and processing plans; environmental reclamation and closure costs and timing; deferred taxes and related valuation allowances; estimates of the fair value of liability classified warrants; and estimates of fair value for long-lived assets, Assets held for sale , and financial instruments. The Company bases its estimates on historical experience and other assumptions, including drilling and assay data that are believed to be reasonable at the time the estimate is made. Actual results may differ from amounts estimated in these Financial Statements, and such differences could be material. Accordingly, amounts presented in these Financial Statements may not be indicative of results that may be expected for future periods.
Recently adopted accounting pronouncements and new accounting pronouncements not yet adopted	Recently adopted accounting pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 changes the way entities measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. For emerging growth companies, the new guidance is effective for annual periods beginning after January 1, 2023. The Company adopted ASU 2016-13 as of January 1, 2023, with no material impact on its Financial Statements or the related disclosures, as all outstanding Accounts receivable have been collected. In April 2019, the FASB issued ASU No. 2019-04, Codification Improvements to Topic 326, Financial Instruments—Credit Losses; Topic 815, Derivatives and Hedging; and Topic 825, Financial Instruments (“ASU 2019-04”). ASU 2019-04 clarifies certain aspects of accounting for credit losses, hedging activities, and financial instruments. For emerging growth companies, the new guidance is effective for annual periods beginning after January 1, 2023. The Company adopted ASU 2019-04 as of January 1, 2023, with no impact on its Financial Statements or the related disclosures, as all outstanding Accounts receivable have been collected, and as such, there is no need to assess allowance for doubtful accounts. In March 2020, the FASB issued authoritative guidance which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate expected to be discontinued because of reference rate reform and was effective for all entities upon issuance on March 12, 2020 through December 31, 2022. ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, defers the expiration date of Topic 848 to December 31, 2024 to realign with the revised cessation date for LIBOR. The guidance permits a company to elect certain optional expedients and exceptions when affected by the changes in reference rate reform. As of July 1, 2023, the Company amended the Second Amended and Restated Credit Agreement, dated as of March 30, 2022, by and between the Company and Sprott Private Resource Lending II (Collector), LP, Sprott Resource Lending Corp., and certain subsidiaries of the Company as guarantors (“Second A&R Agreement”), to replace LIBOR with the Secured Overnight Financing Rate (“SOFR”) by entering into the Second Amendment to Second A&R Agreement (“Second Amendment to Second A&R Agreement”). The Company has elected to adopt the optional expedients, which allow for the update from LIBOR to SOFR in the Second A&R Agreement to be accounted for as a modification rather than an extinguishment. The Company does not expect any further impact to the Financial Statements as the Second A&R Agreement is the only debt instrument that references LIBOR. New accounting pronouncements not yet adopted In March 2022, the FASB issued ASU 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities to Contractual Sale Restrictions (“ASU 2022-03”). For emerging growth companies, the new guidance is effective for annual periods beginning after December 15, 2023. As the Company qualifies as an emerging growth company, the Company plans to take advantage of the deferred effective date afforded to emerging growth companies. The Company is currently evaluating the impact that adopting this update will have on its Financial Statements and related disclosures.

Prepaids and Deposits (Tables)

Prepaids and Deposits (Tables)	9 Months Ended
	Sep. 30, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Components of Prepaids and Other Net and Other Assets	The following table provides the components of current and non-current Prepaids and deposits (in thousands): September 30, December 31, Current prepaids and deposits: Prepaids: Insurance $ 2,181 $ 1,221 Mining claims fees and permit fees 688 940 License fees 376 287 Other 193 154 Deposits 236 238 Total current prepaids and deposits $ 3,674 $ 2,840 Non-current prepaids: Royalty – advance payment on Crofoot Royalty $ 600 $ 600

Property, Plant, and Equipment,

Property, Plant, and Equipment, Net (Tables)	9 Months Ended
	Sep. 30, 2023
Property, Plant and Equipment [Abstract]
Schedule of Components of Plant and Equipment, Net	The following table provides the components of Property, plant, and equipment, net (in thousands): Depreciation Life September 30, December 31, Production leach pads Units-of-production $ 11,190 $ 11,190 Test leach pads 18 months 6,241 6,241 Process equipment 5 - 15 years 17,556 17,302 Buildings and leasehold improvements 10 years 9,403 9,280 Mine equipment 5 - 7 years 5,070 4,872 Vehicles 3 - 5 years 1,700 1,578 Furniture and office equipment 7 years 522 370 Mineral properties (1) Units-of-production 50 — Construction in progress and other 35,655 35,721 87,387 86,554 Less, accumulated depreciation and amortization (33,854) (31,722) Total $ 53,533 $ 54,832 (1) During the nine months ended September 30, 2023, the Company purchased a 50% undivided interest in patented mining claims located in Pershing County, Nevada for cash consideration of $0.1 million.

Restricted Cash (Tables)

Restricted Cash (Tables)	9 Months Ended
	Sep. 30, 2023
Cash and Cash Equivalents [Abstract]
Schedule of Components of Restricted Cash	The following table provides the components of Restricted cash (in thousands): September 30, December 31, Reclamation and other surety bond cash collateral $ 35,034 $ 33,929 Credit card collateral 53 53 Total $ 35,087 $ 33,982

Accounts Payable and Accrued _2

Accounts Payable and Accrued Expenses (Tables)	9 Months Ended
	Sep. 30, 2023
Payables and Accruals [Abstract]
Schedule of Accounts Payable and Accrued Expenses	The following table provides the components of Accounts payable and accrued expenses (in thousands): September 30, December 31, Accounts payable $ 911 $ 1,773 Accrued expenses 1,631 3,871 Total $ 2,542 $ 5,644

Debt, Net (Tables)

Debt, Net (Tables)	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Schedule of Components of Debt	The following table summarizes the components of Debt, net (in thousands): September 30, December 31, Debt, net, current: Sprott Credit Agreement $ 2,200 $ 2,200 Notes payable 128 128 Total $ 2,328 $ 2,328 Debt, net, non-current: Sprott Credit Agreement, net of original issue discount of $8.8 million, net of amortization $ 42,518 $ 42,503 Subordinated Notes 99,160 92,080 Notes payable 108 205 Less, debt issuance costs (1,745) (2,098) Total $ 140,041 $ 132,690
Schedule of Maturities of Long-Term Debt	The following table summarizes the Company’s contractual payments of Debt, net , including current maturities, for the five years subsequent to September 30, 2023 (in thousands): October 1, 2023 through December 31, 2023 $ 581 2024 2,329 2025 1,154 2026 22 2027 148,850 Total 152,936 Less, original issue discount, net of accumulated amortization of $11.3 million (8,822) Less, debt issuance costs, net of accumulated amortization of $3.2 million (1,745) Total debt, net $ 142,369
Schedule of Components of Recorded Interest Expense	The following table summarizes the components of recorded Interest expense (in thousands): Three Months Ended Nine Months Ended 2023 2022 2023 2022 Sprott Credit Agreement (1) $ 1,600 $ 1,261 $ 4,620 $ 3,848 Subordinated Notes (2) 2,418 2,514 7,085 7,279 Amortization of original issue discount (3) 562 561 1,665 2,279 Amortization of debt issuance costs (3) 117 117 346 571 Other interest expense 1 6 5 26 Total $ 4,698 $ 4,459 $ 13,721 $ 14,003 (1) The Sprott Credit Agreement bears interest monthly at a floating rate not less than 8.5% and the current effective interest rate is 14.2%. (2) The Subordinated Notes bear interest at 10.0% per annum (non-cash), payable in-kind on a quarterly basis.

Contract Liabilities (Tables)

Contract Liabilities (Tables)	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Contract Liabilities	The following table summarizes the components of Contract liabilities (in thousands): September 30, December 31, Assets held for sale Equipment not in use (1) $ 1,150 $ 1,050 Total $ 1,150 $ 1,050 (1) As of September 30, 2023, the Company has received payments totaling $1.2 million in accordance with the amended sales agreement for one SAG mill, one ball mill, and one sub-station transformer. The Company will receive a final payment of $12.4 million no later than June 30, 2024. See Note 7 – Assets Held for Sale for additional details.

Other Liabilities (Tables)

Other Liabilities (Tables)	9 Months Ended
	Sep. 30, 2023
Other Liabilities Disclosure [Abstract]
Schedule of Components of Other Liabilities	The following table summarizes the components of Other liabilities (in thousands): September 30, December 31, Other liabilities, current: Accrued compensation $ 2,399 $ 2,868 Excise tax liability — 96 Accrued directors fees 39 36 Operating lease liability — 11 Total $ 2,438 $ 3,011 Other liabilities, non-current Operating lease liability $ 17 $ —

Asset Retirement Obligation (Ta

Asset Retirement Obligation (Tables)	9 Months Ended
	Sep. 30, 2023
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Changes in ARO	The following table summarizes changes in the Company’s Asset retirement obligation (“ARO”) (in thousands): September 30, 2023 December 31, 2022 Balance, beginning of period $ 10,302 $ 5,193 Accretion 558 408 Change in estimates — 4,701 Balance, end of period $ 10,860 $ 10,302

Warrant Liabilities (Tables)

Warrant Liabilities (Tables)	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Schedule of Outstanding Warrants	The following tables summarize the Company’s outstanding warrants (in thousands, except warrant amounts): Balance at Fair Value Transfers to an Balance at December 31, 2021 Adjustments (1) 5-Year Public Warrants September 30, 2022 Warrants Amount Warrants Amount Warrants Amount Warrants Amount 5-Year Private Warrants 9,478,830 $ 664 — $ 482 (75,201) $ (18) 9,403,629 $ 1,128 Seller Warrants (1) 12,721,901 5 — — — — 12,721,901 5 Total 22,200,731 $ 669 — $ 482 (75,201) $ (18) 22,125,530 $ 1,133 Balance at Fair Value Transfers to Balance at December 31, 2022 Adjustments (1) 5-Year Public Warrants September 30, 2023 Warrants Amount Warrants Amount Warrants Amount Warrants Amount 5-Year Private Warrants 9,126,515 $ 786 — $ (182) (8,159,424) $ (583) 967,091 $ 21 (1) Liability classified warrants are subject to fair value remeasurement at each balance sheet date in accordance with FASB Accounting Standard Codification (“ASC”) Topic 815-40, Contracts on Entity’s Own Equity. As a result, fair value adjustments related exclusively to the Company’s liability classified warrants. See Note 20 – Fair Value Measurements for further detail on the fair value of the Company’s liability classified warrants. The following table summarizes additional information on the Company’s outstanding warrants as of September 30, 2023: Exercise Price Exercise Period Expiration Date Warrants Outstanding (1) 5-Year Private Warrants $ 11.50 5 years May 29, 2025 967,091 (1) On October 22, 2022, the Seller Warrants expired pursuant to their terms and as of such time were no longer exercisable or outstanding. The remaining 5-Year Private Warrants outstanding totaled 9,403,629 at the time of the Seller Warrants expiration. The following tables summarize the Company’s outstanding equity classified warrants included in Additional paid-in capital on the Condensed Consolidated Balance Sheets (in thousands, except warrant amounts): Balance at December 31, 2021 Warrant Issuances Transfers from 5-Year Private Warrants (1) Balance at September 30, 2022 Warrants Amount Warrants Amount Warrants Amount Warrants Amount 5-Year Public Warrants 24,811,068 $ 28,912 — $ — 75,201 $ 18 24,886,269 $ 28,930 Public Offering Warrants 9,583,334 12,938 — — — — 9,583,334 12,938 Private Placement Offering Warrants — — 46,816,480 25,604 — — 46,816,480 25,604 Total 34,394,402 $ 41,850 46,816,480 $ 25,604 75,201 $ 18 81,286,083 $ 67,472 Balance at December 31, 2022 Transfers from 5-Year Private Warrants (1) Balance at September 30, 2023 Warrants Amount Warrants Amount Warrants Amount 5-Year Public Warrants 25,163,383 $ 28,954 8,159,424 $ 583 33,322,807 $ 29,537 Public Offering Warrants 9,583,334 12,938 — — 9,583,334 12,938 Private Placement Offering Warrants 46,816,480 25,604 — — 46,816,480 25,604 Total 81,563,197 $ 67,496 8,159,424 $ 583 89,722,621 $ 68,079 (1) See Note 13 – Warrant Liabilities for additional details regarding transfers from 5-Year Private Warrants. The following table summarizes additional information on the Company’s outstanding warrants as of September 30, 2023: Exercise price Exercise period Expiration date Warrants outstanding 5-Year Public Warrants $ 11.50 5 years May 29, 2025 33,322,807 Public Offering Warrants $ 10.50 5 years October 6, 2025 9,583,334 Private Placement Offering Warrants $ 1.068 5 years March 15, 2027 46,816,480

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Schedule of Outstanding Warrants	The following tables summarize the Company’s outstanding warrants (in thousands, except warrant amounts): Balance at Fair Value Transfers to an Balance at December 31, 2021 Adjustments (1) 5-Year Public Warrants September 30, 2022 Warrants Amount Warrants Amount Warrants Amount Warrants Amount 5-Year Private Warrants 9,478,830 $ 664 — $ 482 (75,201) $ (18) 9,403,629 $ 1,128 Seller Warrants (1) 12,721,901 5 — — — — 12,721,901 5 Total 22,200,731 $ 669 — $ 482 (75,201) $ (18) 22,125,530 $ 1,133 Balance at Fair Value Transfers to Balance at December 31, 2022 Adjustments (1) 5-Year Public Warrants September 30, 2023 Warrants Amount Warrants Amount Warrants Amount Warrants Amount 5-Year Private Warrants 9,126,515 $ 786 — $ (182) (8,159,424) $ (583) 967,091 $ 21 (1) Liability classified warrants are subject to fair value remeasurement at each balance sheet date in accordance with FASB Accounting Standard Codification (“ASC”) Topic 815-40, Contracts on Entity’s Own Equity. As a result, fair value adjustments related exclusively to the Company’s liability classified warrants. See Note 20 – Fair Value Measurements for further detail on the fair value of the Company’s liability classified warrants. The following table summarizes additional information on the Company’s outstanding warrants as of September 30, 2023: Exercise Price Exercise Period Expiration Date Warrants Outstanding (1) 5-Year Private Warrants $ 11.50 5 years May 29, 2025 967,091 (1) On October 22, 2022, the Seller Warrants expired pursuant to their terms and as of such time were no longer exercisable or outstanding. The remaining 5-Year Private Warrants outstanding totaled 9,403,629 at the time of the Seller Warrants expiration. The following tables summarize the Company’s outstanding equity classified warrants included in Additional paid-in capital on the Condensed Consolidated Balance Sheets (in thousands, except warrant amounts): Balance at December 31, 2021 Warrant Issuances Transfers from 5-Year Private Warrants (1) Balance at September 30, 2022 Warrants Amount Warrants Amount Warrants Amount Warrants Amount 5-Year Public Warrants 24,811,068 $ 28,912 — $ — 75,201 $ 18 24,886,269 $ 28,930 Public Offering Warrants 9,583,334 12,938 — — — — 9,583,334 12,938 Private Placement Offering Warrants — — 46,816,480 25,604 — — 46,816,480 25,604 Total 34,394,402 $ 41,850 46,816,480 $ 25,604 75,201 $ 18 81,286,083 $ 67,472 Balance at December 31, 2022 Transfers from 5-Year Private Warrants (1) Balance at September 30, 2023 Warrants Amount Warrants Amount Warrants Amount 5-Year Public Warrants 25,163,383 $ 28,954 8,159,424 $ 583 33,322,807 $ 29,537 Public Offering Warrants 9,583,334 12,938 — — 9,583,334 12,938 Private Placement Offering Warrants 46,816,480 25,604 — — 46,816,480 25,604 Total 81,563,197 $ 67,496 8,159,424 $ 583 89,722,621 $ 68,079 (1) See Note 13 – Warrant Liabilities for additional details regarding transfers from 5-Year Private Warrants. The following table summarizes additional information on the Company’s outstanding warrants as of September 30, 2023: Exercise price Exercise period Expiration date Warrants outstanding 5-Year Public Warrants $ 11.50 5 years May 29, 2025 33,322,807 Public Offering Warrants $ 10.50 5 years October 6, 2025 9,583,334 Private Placement Offering Warrants $ 1.068 5 years March 15, 2027 46,816,480
Schedule of Fair Value of the Warrants Upon the Issuance	The Company used the Black-Scholes option pricing model to determine the fair value of the Warrants upon the issuance date using the following assumptions: March 15, 2022 Expected term (years) 5 Risk-free interest rate 2.1 % Expected volatility 118.4 % Expected dividend yield —

Revenues (Tables)

Revenues (Tables)	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	The table below is a summary of the Company’s gold and silver sales (in thousands, except ounces sold amounts): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Amount Ounces Amount Ounces Amount Ounces Amount Ounces Gold sales $ — — $ 8,456 4,817 $ — — $ 21,057 11,557 Silver sales — — 302 15,131 — — 698 32,010 Total $ — $ 8,758 $ — $ 21,755

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Restricted Stock Unit Activity	The following table summarizes the Company’s unvested share awards outstanding under the PIPP: Nine Months Ended 2023 2022 Unvested at beginning of year (1) 3,547,153 2,210,911 Granted 5,016,912 3,007,069 Impact of fluctuations in share price (2) — (515,198) Canceled/forfeited (600,527) (282,500) Vested (1,831,028) (1,141,980) Unvested end of period (1) 6,132,510 3,278,302 (1) As of September 30, 2022, unvested at the beginning of year and unvested end of period includes liability-based awards for which the number of units awarded was not determined until the vesting date. The number of liability-based award units included in this amount are estimated using the market value of the Company’s common shares as of the end of each reporting period. (2) As of September 30, 2022, the impact of fluctuations in share price represents the difference between liability-based awards estimated as of June 30, 2022 and December 31, 2021.

Loss Per Share (Tables)

Loss Per Share (Tables)	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Loss Per Share	The table below summarizes the Company’s basic and diluted loss per share calculations (in thousands, except share and per share amounts): Three Months Ended Nine Months Ended 2023 2022 2023 2022 Net loss $ (15,712) $ (15,849) $ (43,510) $ (46,891) Weighted average shares outstanding Basic 201,954,021 199,207,092 201,021,368 159,607,217 Diluted 201,954,021 199,207,092 201,021,368 159,607,217 Basic loss per common share $ (0.08) $ (0.08) $ (0.22) $ (0.29) Diluted loss per common share $ (0.08) $ (0.08) $ (0.22) $ (0.29)
Schedule of Antidilutive Securities Excluded from Computation	The following table summarizes the shares excluded from the weighted average number of shares of common stock outstanding, as the impact would be anti-dilutive (in thousands): September 30, 2023 2022 Warrants (1) 90,690 94,296 Restricted stock units 6,133 3,278 Total 96,823 97,574 (1) See Note 13 – Warrant Liabilities for adjustments to the Seller Warrants for common stock issuable upon exercise.

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Schedule of Segment Information	The tables below summarize the Company’s segment information (in thousands): Three Months Ended September 30, Nine Months Ended September 30, Hycroft Mine Corporate and Other Total Hycroft Mine Corporate and Other Total 2023 Operating costs $ 10,806 $ 2,765 $ 13,571 $ 26,861 $ 9,810 $ 36,671 Loss from operations (10,806) (2,765) (13,571) (26,861) (9,810) (36,671) Interest expense – Note 9 — (4,698) (4,698) — (13,721) (13,721) Interest income 638 1,462 2,100 1,714 4,445 6,159 Fair value adjustment to warrants – Notes 10 and 18 — 1 1 — 182 182 Gain on sale of equipment and supplies inventories, net of commissions 456 — 456 541 — 541 Net loss $ (9,712) $ (6,000) $ (15,712) $ (24,606) $ (18,904) $ (43,510) 2022 Revenue - Note 14 $ 8,758 $ — $ 8,758 $ 21,755 $ — $ 21,755 Cost of sales 11,237 — 11,237 35,026 — 35,026 Other operating costs 7,113 3,032 10,145 8,506 11,352 19,858 Loss from operations (9,592) (3,032) (12,624) (21,777) (11,352) (33,129) Loss on sale of equipment and supplies inventories, net of commissions (725) — (725) (123) — (123) Interest expense – Note 9 (3) (4,456) (4,459) (9) (13,994) (14,003) Fair value adjustments to warrants – Notes 10 and 18 — 1,133 1,133 — (482) (482) Interest income 153 673 826 173 673 846 Net loss $ (10,167) $ (5,682) $ (15,849) $ (21,736) $ (25,155) $ (46,891) September 30, 2023 December 31, 2022 Hycroft Mine Corporate and Other Total Hycroft Mine Corporate and Other Total Total Assets $ 74,746 $ 137,067 $ 211,813 $ 102,057 $ 146,897 $ 248,954

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of Fair Value on Recurring Basis	The following table sets forth by level within the fair value hierarchy, the Company’s liabilities measured at fair value on a recurring basis (in thousands). Hierarchy September 30, December 31, 5-Year Private Warrants 2 $ 21 $ 786

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	9 Months Ended
	Sep. 30, 2023
Supplemental Cash Flow Information [Abstract]
Schedule of Supplemental Cash Flow Information	The following table provides supplemental cash flow information (in thousands): Nine Months Ended September 30, 2023 2022 Cash interest paid $ 4,625 $ 3,858 Significant non-cash financing activities: Debt issuance costs paid in-kind — 3,300 Liability based restricted stock units transferred to equity — 727 Stock issuance – other — 1,908

Company Overview (Details)

Company Overview (Details) $ in Millions	1 Months Ended
	Mar. 31, 2022 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Proceeds from issuance of equity	$ 194.4

Prepaids and Deposits - Compone

Prepaids and Deposits - Components of prepaids and other net and other assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Prepaids:
Insurance	$ 2,181	$ 1,221
Mining claims fees and permit fees	688	940
License fees	376	287
Other	193	154
Deposits	236	238
Total current prepaids and deposits	3,674	2,840
Non-current prepaids:
Royalty – advance payment on Crofoot Royalty	$ 600	$ 600

Materials and Supplies Invent_2

Materials and Supplies Inventories, Net - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Materials and supplies inventories, net	$ 2.8	$ 2.8

Property, Plant and Equipment_2

Property, Plant and Equipment, Net - Components of plant and equipment, net (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 87,387		$ 86,554
Less, accumulated depreciation and amortization	(33,854)		(31,722)
Total	$ 53,533		54,832
Undivided interest in patent	50%
Payments to acquire mineral properties	$ 851	$ 913
Production leach pads
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 11,190		11,190
Test leach pads
Property, Plant and Equipment [Line Items]
Depreciation Life or Method	18 months
Property, plant and equipment, gross	$ 6,241		6,241
Process equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 17,556		17,302
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Depreciation Life or Method	10 years
Property, plant and equipment, gross	$ 9,403		9,280
Mine equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,070		4,872
Vehicles
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,700		1,578
Furniture and office equipment
Property, Plant and Equipment [Line Items]
Depreciation Life or Method	7 years
Property, plant and equipment, gross	$ 522		370
Mineral properties(1)
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	50		0
Payments to acquire mineral properties	100
Construction in progress and other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 35,655		$ 35,721
Minimum | Process equipment
Property, Plant and Equipment [Line Items]
Depreciation Life or Method	5 years
Minimum | Mine equipment
Property, Plant and Equipment [Line Items]
Depreciation Life or Method	5 years
Minimum | Vehicles
Property, Plant and Equipment [Line Items]
Depreciation Life or Method	3 years
Maximum | Process equipment
Property, Plant and Equipment [Line Items]
Depreciation Life or Method	15 years
Maximum | Mine equipment
Property, Plant and Equipment [Line Items]
Depreciation Life or Method	7 years
Maximum | Vehicles
Property, Plant and Equipment [Line Items]
Depreciation Life or Method	5 years

Property, Plant and Equipment_3

Property, Plant and Equipment, Net - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 0.7	$ 0.8	$ 2.2	$ 2.7

Restricted Cash - Schedule of C

Restricted Cash - Schedule of Components of Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Restricted Cash and Cash Equivalents Items [Line Items]
Total	$ 35,087	$ 33,982
Reclamation and other surety bond cash collateral
Restricted Cash and Cash Equivalents Items [Line Items]
Total	35,034	33,929
Credit card collateral
Restricted Cash and Cash Equivalents Items [Line Items]
Total	$ 53	$ 53

Restricted Cash - Narrative (De

Restricted Cash - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Restricted Cash and Cash Equivalents Items [Line Items]
Interest income	$ 2,100	$ 826	$ 6,159	$ 846
Total	35,087		35,087		$ 33,982
Restricted Cash
Restricted Cash and Cash Equivalents Items [Line Items]
Interest income	400	$ 0	1,100	$ 0
Reclamation and other surety bond cash collateral
Restricted Cash and Cash Equivalents Items [Line Items]
Total	35,034		35,034		33,929
Surety bond
Restricted Cash and Cash Equivalents Items [Line Items]
Guarantor obligations	58,700		58,700		58,700
Hycroft Mine
Restricted Cash and Cash Equivalents Items [Line Items]
Guarantor obligations	$ 58,300		$ 58,300		$ 58,300

Assets Held For Sale (Details)

Assets Held For Sale (Details) $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	May 31, 2023 USD ($)	Dec. 31, 2022 USD ($) sub-stationTransformer	Sep. 30, 2023 USD ($) mill	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) mill	Sep. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023	Aug. 31, 2022 USD ($) mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale		$ 7,148	$ 7,148		$ 7,148
Number of transformers | sub-stationTransformer		1
Proceeds from assets held for sale					0	$ 439
Interest income			$ 2,100	$ 826	$ 6,159	$ 846
Ball Mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of mills | mill			1		1				1
SAG Mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of mills | mill			1		1				1
SAG Mill And Ball Mill
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale									$ 12,000
Aggregate purchase price		$ 13,600
Assets held for sale, additional amount		$ 1,600
Proceeds from assets held for sale					$ 1,200
Receivable final payment on asset held for sale							$ 12,500
Interest income	$ 100		$ 200		600
Non-refundable payments					100
Funds raised by buyer					1,000
SAG Mill And Ball Mill | Minimum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Received interest percentage on outstanding							5%
SAG Mill And Ball Mill | Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Received interest percentage on outstanding								7.50%
Non-refundable payments					$ 400

Accounts Payable and Accrued _3

Accounts Payable and Accrued Expenses - Schedule of Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Accounts payable	$ 911	$ 1,773
Accrued expenses	1,631	3,871
Total	$ 2,542	$ 5,644

Accounts Payable and Accrued _4

Accounts Payable and Accrued Expenses - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 31, 2020	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2021
Payables and Accruals [Abstract]
Loss on purchase commitment						$ 2,100
Purchase commitment, term	3 years
Release payment		$ 1,000
Gain on settlement of accrued liability – Note 8		$ 0	$ 0	$ 1,151	$ 0

Debt, Net - Narrative (Details)

Debt, Net - Narrative (Details) - USD ($) $ in Millions	Mar. 30, 2022	Mar. 16, 2022	Mar. 15, 2022	Mar. 14, 2022	Sep. 30, 2023
Private Placement
Short-term Debt [Line Items]
Consideration received, net of issuance costs				$ 55.9
Proceeds from private placement and forward purchase contract			$ 55.9
Sprott Credit Agreement | Line of Credit
Short-term Debt [Line Items]
Extended maturity period	2 years
Principal prepayment	$ 10
Cap, in aggregate, of principal repaid	$ 13.9
Long term debt, percentage of prepay principal	10%
Prepayment proceeds from sale of assets (up to)	$ 23.9
Debt instrument, unrestricted cash	15
Payment of deferred additional interest	0.5
Principal prepaid	$ 13.9	$ 10
Fee paid-in-kind		$ 3.3
The 1.25 Lien Notes | Secured Debt
Short-term Debt [Line Items]
Stated interest rate				10%
Subordinated Notes
Short-term Debt [Line Items]
Stated interest rate					10%
Amortization rate of discount and issuance costs					1.60%
Sprott Credit Agreement
Short-term Debt [Line Items]
Stated interest rate					8.50%
Interest rate					14.20%

Debt, Net - Components of debt

Debt, Net - Components of debt (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt, net, current:
Total	$ 2,328	$ 2,328
Debt, net, non-current:
Less, debt issuance costs	(1,745)	(2,098)
Total	140,041	132,690
Unamortized discount	8,822
Notes payable
Debt, net, current:
Debt, gross, current	128	128
Debt, net, non-current:
Debt, gross, noncurrent	108	205
Sprott Credit Agreement
Debt, net, current:
Debt, gross, current	2,200	2,200
Debt, net, non-current:
Debt, gross, noncurrent	42,518	42,503
Unamortized discount	8,800	8,800
Subordinated Notes
Debt, net, non-current:
Debt, gross, noncurrent	$ 99,160	$ 92,080

Debt, Net - Schedule of maturit

Debt, Net - Schedule of maturities of long-term debt (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Debt Disclosure [Abstract]
October 1, 2023 through December 31, 2023	$ 581
2024	2,329
2025	1,154
2026	22
2027	148,850
Total	152,936
Less, original issue discount, net of accumulated amortization of $11.3 million	(8,822)
Less, debt issuance costs, net of accumulated amortization of $3.2 million	(1,745)
Total debt, net	142,369
Original issue discount, accumulated amortization	11,300
Debt issuance costs, accumulated amortization	$ 3,200

Debt, Net - Components of recor

Debt, Net - Components of recorded interest expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt Instrument [Line Items]
Amortization of original issue discount(3)	$ 562	$ 561	$ 1,665	$ 2,279
Amortization of debt issuance costs(3)	117	117	346	571
Other interest expense	1	6	5	26
Total	4,698	4,459	13,721	14,003
Sprott Credit Agreement
Debt Instrument [Line Items]
Interest expense, debt	1,600	1,261	4,620	3,848
Subordinated Notes
Debt Instrument [Line Items]
Interest expense, debt	$ 2,418	$ 2,514	$ 7,085	$ 7,279

Contract Liabilities (Details)

Contract Liabilities (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($) mill sub-stationTransformer	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) sub-stationTransformer	Aug. 31, 2022 mill
Long-Lived Assets Held-for-sale [Line Items]
Assets held for sale	$ 1,150		$ 1,050
Contract liabilities - assets held for sale	0	$ 439
Number of transformers | sub-stationTransformer			1
Equipment not in use
Long-Lived Assets Held-for-sale [Line Items]
Assets held for sale	1,150		$ 1,050
SAG Mill And Ball Mill
Long-Lived Assets Held-for-sale [Line Items]
Contract liabilities - assets held for sale	1,200
Non refundable option payments amount due	$ 12,400
SAG Mill
Long-Lived Assets Held-for-sale [Line Items]
Number of mills | mill	1			1
Ball Mill
Long-Lived Assets Held-for-sale [Line Items]
Number of mills | mill	1			1
Sub-Station Transformer
Long-Lived Assets Held-for-sale [Line Items]
Number of transformers | sub-stationTransformer	1

Other Liabilities (Details)

Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Other liabilities, current:
Accrued compensation	$ 2,399	$ 2,868
Excise tax liability	0	96
Accrued directors fees	39	36
Operating lease liability	0	11
Total	2,438	3,011
Other liabilities, non-current
Operating lease liability	$ 17	$ 0

Asset Retirement Obligation (De

Asset Retirement Obligation (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance, beginning of period	$ 10,302	$ 5,193
Accretion	558	408
Change in estimates	0	4,701
Balance, end of period	$ 10,860	$ 10,302

Warrant Liabilities - Summary o

Warrant Liabilities - Summary of outstanding warrants (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		33 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Oct. 22, 2022
Class of Warrant or Right [Roll Forward]
Fair Value Adjustments	$ (1)	$ (1,133)	$ (182)	$ 482
Liability Warrants
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)				22,200,731
Beginning Balance				$ 669
Fair Value Adjustments				$ 482
Transfers to an unrelated third party (in shares)				(75,201)
Transfers to an unrelated third party				$ (18)
Ending Balance (in shares)		22,125,530		22,125,530
Ending Balance		$ 1,133		$ 1,133
Warrants Outstanding (in shares)		22,125,530		22,125,530
5-Year Private Warrants
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)			9,126,515	9,478,830
Beginning Balance			$ 786	$ 664
Fair Value Adjustments			$ (182)	$ 482
Transfers to an unrelated third party (in shares)			(8,159,424)	(75,201)	(9,272,909)
Transfers to an unrelated third party			$ (583)	$ (18)
Ending Balance (in shares)	967,091	9,403,629	967,091	9,403,629	967,091
Ending Balance	$ 21	$ 1,128	$ 21	$ 1,128	$ 21
Exercise Price (in dollars per share)	$ 11.50		$ 11.50		$ 11.50
Exercise Period	5 years		5 years		5 years
Warrants Outstanding (in shares)	967,091	9,403,629	967,091	9,403,629	967,091	9,403,629
Seller Warrants
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)				12,721,901
Beginning Balance				$ 5
Fair Value Adjustments				$ 0
Transfers to an unrelated third party (in shares)				0
Transfers to an unrelated third party				$ 0
Ending Balance (in shares)		12,721,901		12,721,901
Ending Balance		$ 5		$ 5
Warrants Outstanding (in shares)		12,721,901		12,721,901

Warrant Liabilities - Narrative

Warrant Liabilities - Narrative (Details) - shares	9 Months Ended		33 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023
5-Year Private Warrants
Class of Warrant or Right [Line Items]
Transfers to an unrelated third party (in shares)	8,159,424	75,201	9,272,909

Stockholders' Equity - Narrativ

Stockholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions				1 Months Ended	9 Months Ended
	Mar. 15, 2022	Mar. 14, 2022	Mar. 11, 2022	Mar. 31, 2022	Sep. 30, 2023	Dec. 31, 2022
Class of Stock [Line Items]
Common stock, shares authorized, increase (decrease) (in shares)			1,000,000,000
Common stock, authorized (in shares)			1,400,000,000		1,400,000,000	1,400,000,000
Common stock, par value (in dollars per share)					$ 0.0001	$ 0.0001
Proceeds from issuance of equity				$ 194.4
Net proceeds, after deducting commissions and fees					$ 5
Accounts payable					$ 133.5
Common Stock
Class of Stock [Line Items]
Number of shares issued (in shares)	89,553,584
Common stock reserved for future issuance	$ 361.4
Proceeds from issuance of equity	138.6
Private Placement
Class of Stock [Line Items]
Number of shares issued (in shares)		46,816,480
Offering price (in dollars per share)		$ 1.193
Number of shares called by each unit (in shares)		1
Consideration received, net of issuance costs		$ 55.9
Proceeds from private placement and forward purchase contract	55.9
Exercise Period		5 years
Net proceeds, after deducting expenses	53.6
Payments of stock issuance costs	2.3
Sponsor fees	$ 1.8
Private Placement | Public Offering Warrants
Class of Stock [Line Items]
Number of warrants called by each unit (in shares)		1
Warrants, exercise price (in dollars per share)		$ 1.068
At-The-Market Offering | Class A common stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share)	$ 0.0001
Gross sales price (up to)	$ 500

Stockholders' Equity - Summary

Stockholders' Equity - Summary of outstanding warrants (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Total
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)	81,563,197	34,394,402
Beginning Balance	$ 67,496	$ 41,850
Warrant Issuances (in shares)		46,816,480
Warrant issuances		$ 25,604
Transfers to an unrelated third party (in shares)	8,159,424	75,201
Transfers to an unrelated third party	$ 583	$ 18
Ending Balance (in shares)	89,722,621	81,286,083
Ending Balance	$ 68,079	$ 67,472
5-Year Public Warrants
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)	25,163,383	24,811,068
Beginning Balance	$ 28,954	$ 28,912
Warrant Issuances (in shares)		0
Warrant issuances		$ 0
Transfers to an unrelated third party (in shares)	8,159,424	75,201
Transfers to an unrelated third party	$ 583	$ 18
Ending Balance (in shares)	33,322,807	24,886,269
Ending Balance	$ 29,537	$ 28,930
Public Offering Warrants
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)	9,583,334	9,583,334
Beginning Balance	$ 12,938	$ 12,938
Warrant Issuances (in shares)		0
Warrant issuances		$ 0
Transfers to an unrelated third party (in shares)	0	0
Transfers to an unrelated third party	$ 0	$ 0
Ending Balance (in shares)	9,583,334	9,583,334
Ending Balance	$ 12,938	$ 12,938
Private Placement Offering Warrants
Class of Warrant or Right [Roll Forward]
Beginning Balance (in shares)	46,816,480	0
Beginning Balance	$ 25,604	$ 0
Warrant Issuances (in shares)		46,816,480
Warrant issuances		$ 25,604
Transfers to an unrelated third party (in shares)	0	0
Transfers to an unrelated third party	$ 0	$ 0
Ending Balance (in shares)	46,816,480	46,816,480
Ending Balance	$ 25,604	$ 25,604

Stockholders' Equity - Fair val

Stockholders' Equity - Fair value of the warrants upon the issuance (Details)	Mar. 15, 2022
Equity [Abstract]
Expected term (years)	5 years
Risk-free interest rate (in percent)	2.10%
Expected volatility (in percent)	118.40%
Expected dividend yield (in percent)	0%

Stockholder's Equity - Outstand

Stockholder's Equity - Outstanding warrants (Details) - $ / shares	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
5-Year Public Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share)	$ 11.50
Exercise period	5 years
Warrant outstanding (in shares)	33,322,807	25,163,383	24,886,269	24,811,068
Public Offering Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share)	$ 10.50
Exercise period	5 years
Warrant outstanding (in shares)	9,583,334	9,583,334	9,583,334	9,583,334
Private Placement Offering Warrants
Class of Stock [Line Items]
Exercise price (in dollars per share)	$ 1.068
Exercise period	5 years
Warrant outstanding (in shares)	46,816,480	46,816,480	46,816,480	0

Revenues - Disaggregation of re

Revenues - Disaggregation of revenue (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) oz	Sep. 30, 2022 USD ($) oz	Sep. 30, 2023 USD ($) oz	Sep. 30, 2022 USD ($) oz
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 8,758	$ 0	$ 21,755
Customer concentration risk | Revenue | Customer A
Disaggregation of Revenue [Line Items]
Concentration risk percentage		98.90%		51.30%
Gold sales
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 8,456	$ 0	$ 21,057
Ounces Sold | oz	0	4,817	0	11,557
Silver sales
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 302	$ 0	$ 698
Ounces Sold | oz	0	15,131	0	32,010

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) - shares	Jun. 02, 2022	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock unit grants outstanding (in shares)		0
Performance and Incentive Pay Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for issuance (in shares)	12,000,000
Shares authorized for issuance (in shares)	14,508,002
Number of shares available for grant (in shares)		5,135,882
Restricted stock unit grants outstanding (in shares)		6,132,510	3,547,153	3,278,302	2,210,911

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of non-vested share awards (Details) - shares	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Restricted stock units
Number of Units
Unvested at end of year (in shares)	0
Performance and Incentive Pay Plan
Number of Units
Unvested at beginning of year (in shares)	3,547,153	2,210,911
Granted (in shares)	5,016,912	3,007,069
Impact of fluctuations in share price (in shares)	0	(515,198)
Canceled/forfeited (in shares)	(600,527)	(282,500)
Vested (in shares)	(1,831,028)	(1,141,980)
Unvested at end of year (in shares)	6,132,510	3,278,302

Income Taxes (Details)

Income Taxes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 0	$ 0	$ 0	$ 0
Effective income tax rate	0%	0%	0%	0%

Loss Per Share - Schedule of ba

Loss Per Share - Schedule of basic and diluted loss per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net loss	$ (15,712)	$ (13,889)	$ (13,909)	$ (15,849)	$ (8,982)	$ (22,060)	$ (43,510)	$ (46,891)
Weighted average shares outstanding
Basic (in shares)	201,954,021			199,207,092			201,021,368	159,607,217
Diluted (in shares)	201,954,021			199,207,092			201,021,368	159,607,217
Basic loss per common share (in dollars per share)	$ (0.08)			$ (0.08)			$ (0.22)	$ (0.29)
Diluted loss per common share (in dollars per share)	$ (0.08)			$ (0.08)			$ (0.22)	$ (0.29)

Loss Per Share - Schedule of an

Loss Per Share - Schedule of antidilutive securities excluded from computation (Details) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)	96,823	97,574
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)	90,690	94,296
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)	6,133	3,278

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
		Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenue - Note 14		$ 0			$ 8,758			$ 0	$ 21,755
Cost of sales		0			11,237			0	35,026
Operating costs, other operating costs		13,571			10,145			36,671	19,858
Loss from operations		(13,571)			(12,624)			(36,671)	(33,129)
Interest expense – Note 9		(4,698)			(4,459)			(13,721)	(14,003)
Interest income		2,100			826			6,159	846
Fair value adjustments to warrants – Notes 10 and 18		1			1,133			182	(482)
Gain (loss) on sale of equipment and supplies inventories, net of commissions	[1]	456			(725)			541	(123)
Net loss		(15,712)	$ (13,889)	$ (13,909)	(15,849)	$ (8,982)	$ (22,060)	(43,510)	(46,891)
Total Assets		211,813						211,813		$ 248,954
Hycroft Mine
Segment Reporting Information [Line Items]
Revenue - Note 14					8,758				21,755
Cost of sales					11,237				35,026
Operating costs, other operating costs		10,806			7,113			26,861	8,506
Loss from operations		(10,806)			(9,592)			(26,861)	(21,777)
Interest expense – Note 9		0			(3)			0	(9)
Interest income		638			153			1,714	173
Fair value adjustments to warrants – Notes 10 and 18		0			0			0	0
Gain (loss) on sale of equipment and supplies inventories, net of commissions		456			(725)			541	(123)
Net loss		(9,712)			(10,167)			(24,606)	(21,736)
Total Assets		74,746						74,746		102,057
Corporate and Other
Segment Reporting Information [Line Items]
Revenue - Note 14					0				0
Cost of sales					0				0
Operating costs, other operating costs		2,765			3,032			9,810	11,352
Loss from operations		(2,765)			(3,032)			(9,810)	(11,352)
Interest expense – Note 9		(4,698)			(4,456)			(13,721)	(13,994)
Interest income		1,462			673			4,445	673
Fair value adjustments to warrants – Notes 10 and 18		1			1,133			182	(482)
Gain (loss) on sale of equipment and supplies inventories, net of commissions		0			0			0	0
Net loss		(6,000)			$ (5,682)			(18,904)	$ (25,155)
Total Assets		$ 137,067						$ 137,067		$ 146,897
[1]Certain items from prior years were reclassified in the financial statements to conform with the current year presentation.

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of fair value on recurring basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Recurring | 5-Year Private Warrants
Liabilities, Fair Value Disclosure [Abstract]
5-Year Private Warrants	$ 21	$ 786

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, carrying value	$ 142,369
Spott Credit Agreement and Subordinated Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt, fair value	118,600	$ 130,700
Debt, carrying value	$ 141,700	$ 134,700
5-Year Private Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants term	5 years

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt Instrument [Line Items]
Cash interest paid			$ 4,625	$ 3,858
Significant non-cash financing activities:
Liability based restricted stock units transferred to equity			0	727
Stock issuance – other	$ 1,749	$ 158	0	1,908
1.5 Lien Notes to common stock
Significant non-cash financing activities:
Debt issuance costs paid in-kind			$ 0	$ 3,300

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Thousands, T in Millions		9 Months Ended
	Sep. 29, 2020 USD ($)	Sep. 30, 2023 USD ($) T	Dec. 31, 2022 USD ($)
Unrecorded Unconditional Purchase Obligation [Line Items]
Royalty payment, percentage of net profit		4%
Royalty payment, annual advance		$ 120
Royalty payment, additional incremental payment		$ 120
Royalty payment, annual tons mined threshold | T		5
Royalty payment, maximum lease payments		$ 7,600
Payments to acquire royalty interests in mining properties		$ 3,300
Proceeds from sale of royalty to Sprott	$ 30,000
Smelter royalty obligation, percentage	1.50%
Royalty obligation, metal price discount rate		5%
Royalty obligation
Unrecorded Unconditional Purchase Obligation [Line Items]
Royalty obligation, fair value		$ 146,700	$ 146,700
Other assets, noncurrent
Unrecorded Unconditional Purchase Obligation [Line Items]
Payments to acquire royalty interests in mining properties		$ 600

Related Party Transactions (Det

Related Party Transactions (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) financial_institution	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) financial_institution shares	Sep. 30, 2022 USD ($) financial_institution	Dec. 31, 2022 USD ($)
Related Party Transaction [Line Items]
Number of financial institutions, debt issued | financial_institution	5		5
Number of financial institutions, considered related party | financial_institution				1
Minimum percentage of common stock held by related party, right to nominate one director	10%	10%	10%	10%
Interest expense	$ 4,698	$ 4,459	$ 13,721	$ 14,003
Debt	140,041		140,041		$ 132,690
Affiliated Entity | Preparation of Hycroft TRS and Director Fees
Related Party Transaction [Line Items]
Related party transaction, amount	100		$ 100
Affiliated Entity | Acid POX milling technical study
Related Party Transaction [Line Items]
Related party transaction, amount		100		1,200
Affiliated Entity | Director Fees
Related Party Transaction [Line Items]
Related party transaction, amount		0		100
AMC | Director Compensation Restricted Stock Fair Value Member
Related Party Transaction [Line Items]
Shares to vest (in shares) | shares			180,069
Related Party
Related Party Transaction [Line Items]
Interest expense		$ 1,000		$ 3,000
Debt					$ 42,900
Subordinated Notes
Related Party Transaction [Line Items]
Stated amount of borrowing	$ 80,000		$ 80,000

Subsequent Events (Details)

Subsequent Events (Details)	Oct. 26, 2023
Subsequent event
Subsequent Event [Line Items]
Reverse stock split ratio	0.10