$HYMC
HYCROFT MINING HOLDING CORP Stock $hymc

$hymc Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000162828020016024 Filed on November 09, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q3
Revenue	$15.99M	$12.29M	$2.707M
YoY Change	16.63%	354.05%
Cost Of Revenue	$28.12M	$25.77M	$16.16M
YoY Change	97.61%	59.43%
Gross Profit	-$12.13M	-$13.48M	-$13.46M
YoY Change	2232.69%	0.16%
Gross Profit Margin	-75.86%	-109.67%	-497.12%
Selling, General & Admin	$2.940M	$5.710M	$150.0K
YoY Change	-67.87%	3706.67%	7.14%
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.620M	$1.510M
YoY Change	-22.12%
% of Gross Profit
Operating Expenses	$3.030M	$11.14M	$1.983M
YoY Change	-81.59%	461.52%	1316.43%
Operating Profit	-$15.16M	-$24.61M	-$15.44M
YoY Change	-10.72%	59.42%	11203.9%
Interest Expense	-$7.710M	-$4.500M	$1.120M
YoY Change	-88.58%	-501.79%	21.74%
% of Operating Profit
Other Income/Expense, Net	$0.00	$0.00
YoY Change
Pretax Income	-$22.87M	-$32.28M	-$32.09M
YoY Change	-77.56%	0.58%	-4217.33%
Income Tax	$0.00	$0.00	$0.00
% Of Pretax Income
Net Earnings	-$22.87M	-$32.28M	-$32.09M
YoY Change	-77.4%	0.58%	-5470.4%
Net Earnings / Revenue	-143.03%	-262.61%	-1185.52%
Basic Earnings Per Share		-$0.64	-$106.50
Diluted Earnings Per Share	-$326.0K	-$0.64	-$106.50
COMMON SHARES
Basic Shares Outstanding	59.74M shares	50.16M shares	301.2K shares
Diluted Shares Outstanding		50.16M shares	301.2K shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$56.40M	$11.50M	$300.0K
YoY Change	809.68%	3733.33%	-57.14%
Cash & Equivalents	$96.04M	$51.16M	$46.80M
Short-Term Investments
Other Short-Term Assets	$42.30M	$53.10M	$100.0K
YoY Change	51.61%	53000.0%	0.0%
Inventory	$12.87M	$6.147M
Prepaid Expenses	$3.198M	$4.127M
Receivables	$426.0K	$597.0K
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$112.0M	$71.37M	$400.0K
YoY Change	189.03%	17742.0%	-47.5%
LONG-TERM ASSETS
Property, Plant & Equipment	$60.22M	$48.88M
YoY Change	91.04%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments			$214.7M
YoY Change			1.32%
Other Assets	$13.48M	$13.28M
YoY Change	-45.82%
Total Long-Term Assets	$120.6M	$101.8M	$214.7M
YoY Change	25.8%	-52.58%	1.33%
TOTAL ASSETS
Total Short-Term Assets	$112.0M	$71.37M	$400.0K
Total Long-Term Assets	$120.6M	$101.8M	$214.7M
Total Assets	$232.6M	$173.2M	$215.1M
YoY Change	72.78%	-19.49%	1.15%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$12.28M	$21.60M	$0.00
YoY Change	14.28%		-100.0%
Accrued Expenses	$4.200M	$5.700M
YoY Change	425.0%
Deferred Revenue	$0.00
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$5.120M	$2.901M
YoY Change	-99.08%
Total Short-Term Liabilities	$21.68M	$28.65M	$0.00
YoY Change	-96.19%		-100.0%
LONG-TERM LIABILITIES
Long-Term Debt	$142.7M	$141.0M	$0.00
YoY Change
Other Long-Term Liabilities	$1.650M	$1.703M	$7.300M
YoY Change	9066.67%	-76.67%	0.0%
Total Long-Term Liabilities	$144.3M	$142.7M	$7.300M
YoY Change	801650.0%	1854.27%	0.0%
TOTAL LIABILITIES
Total Short-Term Liabilities	$21.68M	$28.65M	$0.00
Total Long-Term Liabilities	$144.3M	$142.7M	$7.300M
Total Liabilities	$216.0M	$222.2M	$7.300M
YoY Change	-62.36%	2944.36%	-6.46%
SHAREHOLDERS EQUITY
Retained Earnings	-$520.8M	-$502.0M
YoY Change	17.17%
Common Stock	$6.000K	$5.000K
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$16.62M	-$49.05M	-$417.8M
YoY Change
Total Liabilities & Shareholders Equity	$232.6M	$173.2M	$215.1M
YoY Change	72.78%	-19.49%	1.15%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q3
OPERATING ACTIVITIES
Net Income	-$22.87M	-$32.28M	-$32.09M
YoY Change	-77.4%	0.58%	-5470.4%
Depreciation, Depletion And Amortization	$1.620M	$1.510M
YoY Change	-22.12%
Cash From Operating Activities	-$25.30M	-$27.57M	-$380.0K
YoY Change	-56.27%	7155.26%	850.0%
INVESTING ACTIVITIES
Capital Expenditures	-$14.20M	-$7.540M
YoY Change	15.45%
Acquisitions
YoY Change
Other Investing Activities	$2.320M		$310.0K
YoY Change	792.31%
Cash From Investing Activities	-$11.88M	-$7.540M	$310.0K
YoY Change	-14.84%	-2532.26%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	82.07M	-660.0K	0.000
YoY Change	20.39%
NET CHANGE
Cash From Operating Activities	-25.30M	-27.57M	-380.0K
Cash From Investing Activities	-11.88M	-7.540M	310.0K
Cash From Financing Activities	82.07M	-660.0K	0.000
Net Change In Cash	44.89M	-35.77M	-70.00K
YoY Change	-1336.64%	51000.0%	75.0%
FREE CASH FLOW
Cash From Operating Activities	-$25.30M	-$27.57M	-$380.0K
Capital Expenditures	-$14.20M	-$7.540M
Free Cash Flow	-$11.10M	-$20.03M
YoY Change	-75.63%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0001718405
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	50160143	shares
	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-38387
	dei	Entity Registrant Name EntityRegistrantName	HYCROFT MINING HOLDING CORP
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Address Address Line1 EntityAddressAddressLine1	8181 E. Tufts Avenue, Suite 510
	dei	Entity Address City Or Town EntityAddressCityOrTown	Denver
	dei	Entity Address State Or Province EntityAddressStateOrProvince	CO
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	82-2657796
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	80237
	dei	City Area Code CityAreaCode	303
	dei	Local Phone Number LocalPhoneNumber	253-3267
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	true
	dei	Entity Ex Transition Period EntityExTransitionPeriod	false
	dei	Entity Shell Company EntityShellCompany	false
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	59743477	shares
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	48881000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	31524000	USD
CY2020Q3	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	39654000	USD
CY2019Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	39477000	USD
CY2020Q3	us-gaap	Assets Assets	173186000	USD
CY2019Q4	us-gaap	Assets Assets	134637000	USD
CY2020Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	21596000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	10746000	USD
CY2020Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	3984000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	3939000	USD
CY2020Q3	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	168000	USD
CY2019Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	0	USD
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	2901000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	553965000	USD
CY2020Q3	us-gaap	Cash Cash	11505000	USD
CY2019Q4	us-gaap	Cash Cash	6220000	USD
CY2020Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	597000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	97000	USD
CY2020Q3	us-gaap	Inventory Net InventoryNet	6147000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	4453000	USD
CY2020Q3	hymc	Ore On Leach Pads OreOnLeachPads	46480000	USD
CY2019Q4	hymc	Ore On Leach Pads OreOnLeachPads	22062000	USD
CY2020Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	6639000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	2648000	USD
CY2020Q3	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2019Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	3270000	USD
CY2020Q3	us-gaap	Assets Current AssetsCurrent	71368000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	38750000	USD
CY2020Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	13283000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	24886000	USD
CY2020Q3	us-gaap	Interest Payable Current InterestPayableCurrent	0	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	846000	USD
CY2020Q3	us-gaap	Liabilities Current LiabilitiesCurrent	28649000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	569496000	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1893000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	18000	USD
CY2020Q3	hymc	Royalty Obligation Noncurrent RoyaltyObligationNoncurrent	29812000	USD
CY2019Q4	hymc	Royalty Obligation Noncurrent RoyaltyObligationNoncurrent	0	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	140959000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	USD
CY2020Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	4654000	USD
CY2019Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	4374000	USD
CY2020Q3	us-gaap	Liabilities Liabilities	205967000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	573888000	USD
CY2020Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	50160143	shares
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50160143	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	345431	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	323328	shares
CY2020Q3	us-gaap	Common Stock Value CommonStockValue	5000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	0	USD
CY2020Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	465103000	USD
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	5187000	USD
CY2020Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-497889000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-444438000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	-32781000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	-439251000	USD
CY2020Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	173186000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	134637000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	12291000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2707000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	31051000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2707000	USD
CY2020Q3	us-gaap	Manufacturing Costs ManufacturingCosts	10865000	USD
CY2019Q3	us-gaap	Manufacturing Costs ManufacturingCosts	1650000	USD
	us-gaap	Manufacturing Costs ManufacturingCosts	27286000	USD
	us-gaap	Manufacturing Costs ManufacturingCosts	1650000	USD
CY2020Q3	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	675000	USD
CY2019Q3	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	167000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	1999000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	167000	USD
CY2020Q3	hymc	Mine Site Period Costs MineSitePeriodCosts	14230000	USD
CY2019Q3	hymc	Mine Site Period Costs MineSitePeriodCosts	0	USD
	hymc	Mine Site Period Costs MineSitePeriodCosts	34292000	USD
	hymc	Mine Site Period Costs MineSitePeriodCosts	0	USD
CY2020Q3	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
CY2019Q3	us-gaap	Inventory Write Down InventoryWriteDown	14347000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	17924000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	14347000	USD
CY2020Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	25770000	USD
CY2019Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	16164000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	81501000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	16164000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	5711000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	1499000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	18149000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	4660000	USD
CY2020Q3	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	5331000	USD
CY2019Q3	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	5331000	USD
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2020Q3	us-gaap	Accretion Expense AccretionExpense	93000	USD
CY2019Q3	us-gaap	Accretion Expense AccretionExpense	106000	USD
	us-gaap	Accretion Expense AccretionExpense	280000	USD
	us-gaap	Accretion Expense AccretionExpense	317000	USD
CY2020Q3	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	0	USD
CY2019Q3	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	378000	USD
	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	0	USD
	us-gaap	Costs Incurred Development Costs CostsIncurredDevelopmentCosts	7168000	USD
CY2020Q3	hymc	Pre Production Depreciation And Amortization PreProductionDepreciationAndAmortization	0	USD
CY2019Q3	hymc	Pre Production Depreciation And Amortization PreProductionDepreciationAndAmortization	0	USD
	hymc	Pre Production Depreciation And Amortization PreProductionDepreciationAndAmortization	0	USD
	hymc	Pre Production Depreciation And Amortization PreProductionDepreciationAndAmortization	1065000	USD
CY2020Q3	hymc	Care And Maintenance CareAndMaintenance	0	USD
CY2019Q3	hymc	Care And Maintenance CareAndMaintenance	0	USD
	hymc	Care And Maintenance CareAndMaintenance	0	USD
	hymc	Care And Maintenance CareAndMaintenance	3770000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-24614000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-15440000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-74210000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-30437000	USD
CY2020Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	4319000	USD
CY2019Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	16735000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	39278000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	46774000	USD
CY2020Q3	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	190000	USD
CY2019Q3	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	0	USD
	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	190000	USD
	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	0	USD
CY2020Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	9000	USD
CY2019Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	394000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	156000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	620000	USD
CY2020Q3	hymc	Income Loss From Continuing Operations Before Reorganization Items And Net Income Taxes Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeReorganizationItemsAndNetIncomeTaxesNoncontrollingInterest	-29114000	USD
CY2019Q3	hymc	Income Loss From Continuing Operations Before Reorganization Items And Net Income Taxes Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeReorganizationItemsAndNetIncomeTaxesNoncontrollingInterest	-31781000	USD
	hymc	Income Loss From Continuing Operations Before Reorganization Items And Net Income Taxes Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeReorganizationItemsAndNetIncomeTaxesNoncontrollingInterest	-113522000	USD
	hymc	Income Loss From Continuing Operations Before Reorganization Items And Net Income Taxes Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeReorganizationItemsAndNetIncomeTaxesNoncontrollingInterest	-76591000	USD
CY2020Q3	us-gaap	Reorganization Items ReorganizationItems	0	USD
CY2019Q3	us-gaap	Reorganization Items ReorganizationItems	311000	USD
	us-gaap	Reorganization Items ReorganizationItems	0	USD
	us-gaap	Reorganization Items ReorganizationItems	888000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-29114000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-32092000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-113522000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-77479000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-32092000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-113522000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-77479000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.58
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-106.54
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-4.92
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-258.48
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.58
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-106.54
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-4.92
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-258.48
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50160080	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	301213	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	23059068	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	299746	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50160080	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	301213	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	23059068	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	299746	shares
	us-gaap	Net Income Loss NetIncomeLoss	-113522000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-77479000	USD
	hymc	Non Cash Portion Of Interest Expense NonCashPortionOfInterestExpense	34696000	USD
	hymc	Non Cash Portion Of Interest Expense NonCashPortionOfInterestExpense	39207000	USD
	hymc	Mine Site Period Costs Noncash MineSitePeriodCostsNoncash	32024000	USD
	hymc	Mine Site Period Costs Noncash MineSitePeriodCostsNoncash	0	USD
	us-gaap	Inventory Write Down InventoryWriteDown	17924000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	14347000	USD
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	5331000	USD
	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4270000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1233000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	1991000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	697000	USD
	us-gaap	Other Postretirement Benefits Expense Reversal Of Expense Noncash OtherPostretirementBenefitsExpenseReversalOfExpenseNoncash	1940000	USD
	us-gaap	Other Postretirement Benefits Expense Reversal Of Expense Noncash OtherPostretirementBenefitsExpenseReversalOfExpenseNoncash	0	USD
	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	190000	USD
	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	0	USD
	us-gaap	Accretion Expense AccretionExpense	280000	USD
	us-gaap	Accretion Expense AccretionExpense	317000	USD
	hymc	Phantom Share Compensation PhantomShareCompensation	225000	USD
	hymc	Phantom Share Compensation PhantomShareCompensation	706000	USD
	hymc	Royalty Obligation Amortization RoyaltyObligationAmortization	20000	USD
	hymc	Royalty Obligation Amortization RoyaltyObligationAmortization	0	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	500000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	0	USD
	us-gaap	Increase Decrease In Finished Goods And Work In Process Inventories IncreaseDecreaseInFinishedGoodsAndWorkInProcessInventories	71787000	USD
	us-gaap	Increase Decrease In Finished Goods And Work In Process Inventories IncreaseDecreaseInFinishedGoodsAndWorkInProcessInventories	25852000	USD
	us-gaap	Increase Decrease In Raw Materials Packaging Materials And Supplies Inventories IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories	2094000	USD
	us-gaap	Increase Decrease In Raw Materials Packaging Materials And Supplies Inventories IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories	1072000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2765000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	25000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	6926000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	4270000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	497000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	6000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-818000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-450000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-85212000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-44095000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	19237000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	10809000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-19237000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-10809000	USD
	hymc	Proceeds From Royalty Obligation ProceedsFromRoyaltyObligation	30000000	USD
	hymc	Proceeds From Royalty Obligation ProceedsFromRoyaltyObligation	0	USD
	hymc	Proceeds From Recapitalization Transaction ProceedsFromRecapitalizationTransaction	10419000	USD
	hymc	Proceeds From Recapitalization Transaction ProceedsFromRecapitalizationTransaction	0	USD
	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	1000	USD
	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	15801000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3075000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	106641000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	48844000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	2192000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-6060000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	48967000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	52861000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	51159000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	46801000	USD
CY2020Q3	us-gaap	Cash Cash	11505000	USD
CY2019Q3	us-gaap	Cash Cash	4963000	USD
CY2020Q3	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2019Q3	us-gaap	Restricted Cash Current RestrictedCashCurrent	2518000	USD
CY2020Q3	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	39654000	USD
CY2019Q3	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	39320000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	51159000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	46801000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	-439251000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-34618000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	-473869000	USD
CY2020Q2	hymc	Unredeemed Spac Shares Of Muds Public Stockholders Value UnredeemedSPACSharesOfMUDSPublicStockholdersValue	3723000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	444000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1802000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	0	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	7281000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-49790000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	-2723000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	960000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-29114000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	-32781000	USD
CY2020Q3	hymc	Unissued Shares UnissuedShares	148803	shares
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	-340356000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	0	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-23440000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	-363796000	USD
CY2019Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	0	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-21947000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	-385743000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-32092000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	-417835000	USD
CY2020Q2	hymc	Reverse Recapitalization Conversion Ratio ReverseRecapitalizationConversionRatio	0.112
	us-gaap	Net Income Loss NetIncomeLoss	-113500000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-85200000	USD
CY2020Q3	us-gaap	Cash Cash	11500000	USD
CY2020Q3	hymc	Working Capital WorkingCapital	42700000	USD
CY2020Q3	us-gaap	Liabilities Liabilities	206000000.0	USD
CY2020Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-497900000	USD
	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:10pt;text-align:justify"><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;text-decoration:underline">Use of estimates</span></div><div style="margin-top:10pt;text-align:justify;text-indent:18pt"><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Company’s financial statements in conformity with GAAP 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: recoverable gold and silver on the leach pads and in-process inventories; timing of near-term ounce production and related sales; the useful lives of long-lived assets; probabilities of future expansion projects; estimates of mineral reserves; estimates of life-of-mine production timing, volumes, costs and prices; current and future mining and processing plans; environmental reclamation and closure costs and timing; deferred taxes and related valuation allowances; and estimates of fair value for asset impairments and financial instruments. The Company bases its estimates on historical experience and various assumptions 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 are not indicative of results that may be expected for future periods.</span></div>
CY2019Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	0	USD
CY2020Q3	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	0	USD
CY2020Q3	us-gaap	Restricted Cash RestrictedCash	39700000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	42700000	USD
CY2020Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2020Q3	us-gaap	Mineral Properties Gross MineralPropertiesGross	0	USD
CY2019Q4	us-gaap	Mineral Properties Gross MineralPropertiesGross	0	USD
CY2020Q2	hymc	Proceeds From Recapitalization Transaction ProceedsFromRecapitalizationTransaction	10400000	USD
CY2020Q2	hymc	Shares Surrendered Shares SharesSurrenderedShares	3500000	shares
CY2020Q2	hymc	Stock Issued During Period Percent Issued To Creditors StockIssuedDuringPeriodPercentIssuedToCreditors	0.010
CY2020Q2	hymc	Proceeds From Royalty Obligation ProceedsFromRoyaltyObligation	30000000.0	USD
CY2020Q2	hymc	Royalty Obligation Smelter Net Percent RoyaltyObligationSmelterNetPercent	0.015
CY2020Q2	hymc	Cash In Reserve For Dissolution CashInReserveForDissolution	2300000	USD
CY2020Q2	hymc	Payments For Underwriter Fees PaymentsForUnderwriterFees	2500000	USD
CY2020Q2	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	40000.00	shares
CY2020Q2	hymc	Payments For Additional Underwriter Fees PaymentsForAdditionalUnderwriterFees	2000000.0	USD
CY2020Q2	hymc	Common Stock And Warrants Cash Remitted To Holders Of Sellers Deferred Phantom Units CommonStockAndWarrantsCashRemittedToHoldersOfSellersDeferredPhantomUnits	1800000	USD
CY2020Q2	hymc	Common Stock And Warrants Cash Paid For Additional Transaction Costs CommonStockAndWarrantsCashPaidForAdditionalTransactionCosts	7400000	USD
CY2020Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	50160042	shares
CY2020Q2	hymc	Common Stock Outstanding Percentage CommonStockOutstandingPercentage	1.000
CY2020Q3	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	4652000	USD
CY2020Q3	hymc	Inventory Materials And Supplies Gold Ounces InventoryMaterialsAndSuppliesGoldOunces	0	oz
CY2019Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	2559000	USD
CY2019Q4	hymc	Inventory Materials And Supplies Gold Ounces InventoryMaterialsAndSuppliesGoldOunces	0	oz
CY2020Q3	hymc	Inventory Merrill Crowe In Process Gross InventoryMerrillCroweInProcessGross	979000	USD
CY2020Q3	hymc	Inventory Merrill Crowe In Process Gold Ounces InventoryMerrillCroweInProcessGoldOunces	517	oz
CY2019Q4	hymc	Inventory Merrill Crowe In Process Gross InventoryMerrillCroweInProcessGross	1004000	USD
CY2019Q4	hymc	Inventory Merrill Crowe In Process Gold Ounces InventoryMerrillCroweInProcessGoldOunces	691	oz
CY2020Q3	hymc	Inventory Carbon Column In Process Gross InventoryCarbonColumnInProcessGross	213000	USD
CY2020Q3	hymc	Inventory Carbon Column In Process Gold Ounces InventoryCarbonColumnInProcessGoldOunces	130	oz
CY2019Q4	hymc	Inventory Carbon Column In Process Gross InventoryCarbonColumnInProcessGross	478000	USD
CY2019Q4	hymc	Inventory Carbon Column In Process Gold Ounces InventoryCarbonColumnInProcessGoldOunces	474	oz
CY2020Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	303000	USD
CY2020Q3	hymc	Inventory Dor Finished Goods Gold Ounces InventoryDorFinishedGoodsGoldOunces	161	oz
CY2019Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	412000	USD
CY2019Q4	hymc	Inventory Dor Finished Goods Gold Ounces InventoryDorFinishedGoodsGoldOunces	278	oz
CY2020Q3	us-gaap	Inventory Net InventoryNet	6147000	USD
CY2020Q3	hymc	Inventory Gold Ounces InventoryGoldOunces	808	oz
CY2019Q4	us-gaap	Inventory Net InventoryNet	4453000	USD
CY2019Q4	hymc	Inventory Gold Ounces InventoryGoldOunces	1443	oz
CY2020Q3	hymc	Capitalized Costs Inventory Capitalized Depreciation And Amortization Costs CapitalizedCostsInventoryCapitalizedDepreciationAndAmortizationCosts	100000	USD
CY2019Q4	hymc	Capitalized Costs Inventory Capitalized Depreciation And Amortization Costs CapitalizedCostsInventoryCapitalizedDepreciationAndAmortizationCosts	100000	USD
CY2020Q3	hymc	Ore On Leach Pads OreOnLeachPads	46480000	USD
CY2020Q3	hymc	Ore On Leach Pads Gold Ounces OreOnLeachPadsGoldOunces	26591	oz
CY2019Q4	hymc	Ore On Leach Pads OreOnLeachPads	22062000	USD
CY2019Q4	hymc	Ore On Leach Pads Gold Ounces OreOnLeachPadsGoldOunces	17019	oz
CY2020Q3	hymc	Capitalized Costs Ore On Leach Pads Net CapitalizedCostsOreOnLeachPadsNet	2700000	USD
CY2019Q4	hymc	Capitalized Costs Ore On Leach Pads Net CapitalizedCostsOreOnLeachPadsNet	1800000	USD
	hymc	Inventory Ore On Leach Pads Gold Write Off InventoryOreOnLeachPadsGoldWriteOff	10492	oz
CY2020Q1	hymc	Inventory Ore On Leach Pads Gold Write Off InventoryOreOnLeachPadsGoldWriteOff	3980	oz
CY2020Q2	hymc	Inventory Ore On Leach Pads Gold Write Off InventoryOreOnLeachPadsGoldWriteOff	6512	oz
	hymc	Inventory Ore On Leach Pads Production Costs Written Off InventoryOreOnLeachPadsProductionCostsWrittenOff	16700000	USD
CY2020Q1	hymc	Inventory Ore On Leach Pads Production Costs Written Off InventoryOreOnLeachPadsProductionCostsWrittenOff	6500000	USD
CY2020Q2	hymc	Inventory Ore On Leach Pads Production Costs Written Off InventoryOreOnLeachPadsProductionCostsWrittenOff	10200000	USD
	hymc	Inventory Ore On Leach Pads Capitalized Costs Written Off InventoryOreOnLeachPadsCapitalizedCostsWrittenOff	1300000	USD
CY2020Q1	hymc	Inventory Ore On Leach Pads Capitalized Costs Written Off InventoryOreOnLeachPadsCapitalizedCostsWrittenOff	600000	USD
CY2020Q2	hymc	Inventory Ore On Leach Pads Capitalized Costs Written Off InventoryOreOnLeachPadsCapitalizedCostsWrittenOff	700000	USD
CY2020Q3	hymc	Mine Site Period Costs Gross MineSitePeriodCostsGross	14200000	USD
	hymc	Mine Site Period Costs Gross MineSitePeriodCostsGross	34300000	USD
CY2020Q3	hymc	Mine Site Period Costs Depreciation And Amortization MineSitePeriodCostsDepreciationAndAmortization	800000	USD
	hymc	Mine Site Period Costs Depreciation And Amortization MineSitePeriodCostsDepreciationAndAmortization	2300000	USD
CY2020Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	4127000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	2109000	USD
CY2020Q3	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	2315000	USD
CY2019Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	0	USD
CY2020Q3	us-gaap	Deposits Assets Current DepositsAssetsCurrent	197000	USD
CY2019Q4	us-gaap	Deposits Assets Current DepositsAssetsCurrent	539000	USD
CY2020Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	6639000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	2648000	USD
CY2020Q3	hymc	Equipment Not In Use EquipmentNotInUse	12038000	USD
CY2019Q4	hymc	Equipment Not In Use EquipmentNotInUse	19683000	USD
CY2020Q3	hymc	Prepaid Supplies Consignment Inventory PrepaidSuppliesConsignmentInventory	885000	USD
CY2019Q4	hymc	Prepaid Supplies Consignment Inventory PrepaidSuppliesConsignmentInventory	0	USD
CY2020Q3	us-gaap	Advance Royalties Noncurrent AdvanceRoyaltiesNoncurrent	360000	USD
CY2019Q4	us-gaap	Advance Royalties Noncurrent AdvanceRoyaltiesNoncurrent	120000	USD
CY2020Q3	us-gaap	Deferred Costs DeferredCosts	0	USD
CY2019Q4	us-gaap	Deferred Costs DeferredCosts	5083000	USD
CY2020Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	13283000	USD
CY2020Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	1761000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	1139000	USD
CY2020Q3	us-gaap	Deferred Compensation Share Based Arrangements Liability Current DeferredCompensationShareBasedArrangementsLiabilityCurrent	0	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	24886000	USD
CY2020Q3	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	2300000	USD
CY2020Q3	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	39654000	USD
CY2019Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	39477000	USD
CY2020Q3	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2019Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	3270000	USD
CY2020Q3	us-gaap	Restricted Cash RestrictedCash	39654000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	42747000	USD
CY2019Q4	us-gaap	Deferred Compensation Share Based Arrangements Liability Current DeferredCompensationShareBasedArrangementsLiabilityCurrent	1590000	USD
CY2020Q2	hymc	Royalty Obligation Smelter Right To Repurchase Percentage Of Net Smelter Returns RoyaltyObligationSmelterRightToRepurchasePercentageOfNetSmelterReturns	0.005
CY2020Q2	hymc	Royalty Obligation Smelter Net Percent RoyaltyObligationSmelterNetPercent	0.015
CY2020Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	72537000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	48732000	USD
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	23656000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	17208000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	48881000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	31524000	USD
CY2020Q3	us-gaap	Deferred Compensation Cash Based Arrangements Liability Current DeferredCompensationCashBasedArrangementsLiabilityCurrent	2223000	USD
CY2019Q4	us-gaap	Deferred Compensation Cash Based Arrangements Liability Current DeferredCompensationCashBasedArrangementsLiabilityCurrent	1210000	USD
CY2020Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	3984000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	3939000	USD
CY2020Q3	us-gaap	Deferred Compensation Cashbased Arrangements Liability Classified Noncurrent DeferredCompensationCashbasedArrangementsLiabilityClassifiedNoncurrent	1388000	USD
CY2019Q4	us-gaap	Deferred Compensation Cashbased Arrangements Liability Classified Noncurrent DeferredCompensationCashbasedArrangementsLiabilityClassifiedNoncurrent	0	USD
CY2020Q3	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	208000	USD
CY2019Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	18000	USD
CY2020Q3	hymc	Accrued Payroll Taxes Noncurrent AccruedPayrollTaxesNoncurrent	297000	USD
CY2019Q4	hymc	Accrued Payroll Taxes Noncurrent AccruedPayrollTaxesNoncurrent	0	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1893000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	18000	USD
CY2020Q2	hymc	Proceeds From Royalty Obligation ProceedsFromRoyaltyObligation	30000000.0	USD
CY2020Q2	hymc	Royalty Obligation Smelter Net Percent RoyaltyObligationSmelterNetPercent	0.015
CY2020Q2	hymc	Royalty Obligation Smelter Percentage Of Royalty With Right To Purchase RoyaltyObligationSmelterPercentageOfRoyaltyWithRightToPurchase	0.333
CY2020Q3	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	200000	USD
CY2020Q3	hymc	Royalty Obligation Amortization RoyaltyObligationAmortization	5300	USD
	hymc	Royalty Obligation Amortization RoyaltyObligationAmortization	19800	USD
CY2020Q3	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	0	USD
CY2019Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	949000	USD
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	2901000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	553965000	USD
CY2020Q3	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	4509000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	0	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	140959000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	USD
CY2020Q2	hymc	Stock Issued During Period Percent Issued To Creditors StockIssuedDuringPeriodPercentIssuedToCreditors	0.010
CY2020Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	336000	USD
CY2019Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	512000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1643000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1513000	USD
CY2020Q3	hymc	Interest Expense Debt Other InterestExpenseDebtOther	0	USD
CY2019Q3	hymc	Interest Expense Debt Other InterestExpenseDebtOther	0	USD
	hymc	Interest Expense Debt Other InterestExpenseDebtOther	8000	USD
	hymc	Interest Expense Debt Other InterestExpenseDebtOther	0	USD
CY2020Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	561000	USD
CY2019Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	34000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	895000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	451000	USD
CY2020Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	4319000	USD
CY2019Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	16735000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	39278000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	46774000	USD
CY2020Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	4374000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	5832000	USD
	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	280000	USD
	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	317000	USD
CY2020Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	4654000	USD
CY2019Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	6149000	USD
CY2020Q3	hymc	Shares Authorized SharesAuthorized	410000000	shares
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2020Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2020Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50160143	shares
CY2020Q3	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	47011521	shares
CY2020Q3	hymc	Class Of Warrant Or Right Share Price Threshold To Call Warrants ClassOfWarrantOrRightSharePriceThresholdToCallWarrants	18.00
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	12291000	USD
CY2020Q3	hymc	Volume Of Sales VolumeOfSales		oz
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2707000	USD
CY2019Q3	hymc	Volume Of Sales VolumeOfSales		oz
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	31051000	USD
	hymc	Volume Of Sales VolumeOfSales		oz
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50160080	shares
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2707000	USD
	hymc	Volume Of Sales VolumeOfSales		oz
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1800000	USD
CY2020Q2	hymc	Payments For Vesting Of Phantom Shares PaymentsForVestingOfPhantomShares	1800000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2020Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.000
CY2019Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.000
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.000
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.000
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	256500000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	256500000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	267800000	USD
CY2020Q2	hymc	Gain Loss On Recapitalization GainLossOnRecapitalization	95000000.0	USD
CY2020Q2	hymc	Deferred Tax Asset Recapitalization DeferredTaxAssetRecapitalization	19900000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	247900000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	100200000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	100200000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-29114000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-32092000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-113522000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-77479000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50160080	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	301213	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	23059068	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	299746	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	301213	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	23059068	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	299746	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.58
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-106.54
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-4.92
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-258.48
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.58
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-106.54
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-4.92
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-258.48
	hymc	Reverse Recapitalization Conversion Ratio ReverseRecapitalizationConversionRatio	0.112
CY2020Q3	hymc	Reverse Recapitalization Conversion Ratio ReverseRecapitalizationConversionRatio	0.112
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	37700000	shares
CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	37700000	shares
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	12291000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	31051000	USD
CY2020Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	25770000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	81501000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	11135000	USD
	us-gaap	Operating Expenses OperatingExpenses	23760000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-24614000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-74210000	USD
CY2020Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	4319000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	39278000	USD
CY2020Q3	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	190000	USD
	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	190000	USD
CY2020Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	9000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	156000	USD
CY2020Q3	hymc	Income Loss From Continuing Operations Before Reorganization Items And Net Income Taxes Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeReorganizationItemsAndNetIncomeTaxesNoncontrollingInterest	-29114000	USD
	hymc	Income Loss From Continuing Operations Before Reorganization Items And Net Income Taxes Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeReorganizationItemsAndNetIncomeTaxesNoncontrollingInterest	-113522000	USD
CY2020Q3	us-gaap	Reorganization Items ReorganizationItems	0	USD
	us-gaap	Reorganization Items ReorganizationItems	0	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-29114000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-113522000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2707000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2707000	USD
CY2019Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	16164000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	16164000	USD
CY2019Q3	us-gaap	Operating Expenses OperatingExpenses	1983000	USD
	us-gaap	Operating Expenses OperatingExpenses	16980000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-15440000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-30437000	USD
CY2019Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	16735000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	46774000	USD
CY2019Q3	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	0	USD
	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	0	USD
CY2019Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	394000	USD
CY2020Q3	hymc	Royalty Agreement Payment Annual Tons Mined Threshold RoyaltyAgreementPaymentAnnualTonsMinedThreshold	5000000.0	T
	us-gaap	Investment Income Interest InvestmentIncomeInterest	620000	USD
CY2019Q3	hymc	Income Loss From Continuing Operations Before Reorganization Items And Net Income Taxes Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeReorganizationItemsAndNetIncomeTaxesNoncontrollingInterest	-31781000	USD
	hymc	Income Loss From Continuing Operations Before Reorganization Items And Net Income Taxes Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeReorganizationItemsAndNetIncomeTaxesNoncontrollingInterest	-76591000	USD
CY2019Q3	us-gaap	Reorganization Items ReorganizationItems	311000	USD
	us-gaap	Reorganization Items ReorganizationItems	888000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-32092000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-77479000	USD
CY2020Q3	hymc	Royalty Obligation Metal Price Discount Rate RoyaltyObligationMetalPriceDiscountRate	0.050
	us-gaap	Interest Paid Net InterestPaidNet	5366000	USD
	us-gaap	Interest Paid Net InterestPaidNet	8021000	USD
	hymc	Allocate And Write Off Of Sellers Debt Issuance Costs AllocateAndWriteOffOfSellersDebtIssuanceCosts	8202000	USD
	hymc	Allocate And Write Off Of Sellers Debt Issuance Costs AllocateAndWriteOffOfSellersDebtIssuanceCosts	0	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3713000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2485000	USD
	us-gaap	Debt Issuance Costs Incurred During Noncash Or Partial Noncash Transaction DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction	1098000	USD
	us-gaap	Debt Issuance Costs Incurred During Noncash Or Partial Noncash Transaction DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction	530000	USD
CY2020Q3	us-gaap	Loss Contingency Damages Paid Value LossContingencyDamagesPaidValue	100000	USD
CY2020Q3	hymc	Royalty Agreement Payment Percentage Of Net Profit RoyaltyAgreementPaymentPercentageOfNetProfit	0.04
CY2020Q3	hymc	Royalty Agreement Payment Annual Advance RoyaltyAgreementPaymentAnnualAdvance	120000	USD
CY2020Q3	hymc	Royalty Agreement Payment Percentage Of Net Profit RoyaltyAgreementPaymentPercentageOfNetProfit	0.04
CY2020Q3	hymc	Royalty Agreement Payment Additional Incremental Payment RoyaltyAgreementPaymentAdditionalIncrementalPayment	120000	USD
CY2020Q3	hymc	Royalty Agreement Payment Annual Tons Mined Threshold RoyaltyAgreementPaymentAnnualTonsMinedThreshold	5000000.0	T
CY2020Q3	hymc	Royalty Agreement Payment Additional Incremental Payment RoyaltyAgreementPaymentAdditionalIncrementalPayment	120000	USD
CY2020Q3	hymc	Royalty Agreement Payment Maximum Lease Payments RoyaltyAgreementPaymentMaximumLeasePayments	7600000	USD
	us-gaap	Payments To Acquire Royalty Interests In Mining Properties PaymentsToAcquireRoyaltyInterestsInMiningProperties	2700000	USD
CY2020Q3	hymc	Related Party Transaction Number Of Financial Institutions Debt Issued RelatedPartyTransactionNumberOfFinancialInstitutionsDebtIssued	5	financial_Institution
	hymc	Related Party Transaction Number Of Financial Institutions Considered Related Party RelatedPartyTransactionNumberOfFinancialInstitutionsConsideredRelatedParty	3	financial_Institution
CY2020Q3	hymc	Related Party Transaction Minimum Percentage Of Common Stock Held By Related Party Right To Nominate One Director RelatedPartyTransactionMinimumPercentageOfCommonStockHeldByRelatedPartyRightToNominateOneDirector	0.10
CY2020Q3	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	1700000	USD
	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	29500000	USD
CY2019Q3	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	13200000	USD
	us-gaap	Interest Expense Related Party InterestExpenseRelatedParty	34900000	USD
CY2020Q3	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	69500000	USD
CY2019Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	421600000	USD

Files In Submission

Name	View Source	Status
0001628280-20-016024-index-headers.html	Edgar Link	pending
0001628280-20-016024-index.html	Edgar Link	pending
0001628280-20-016024.txt	Edgar Link	pending
0001628280-20-016024-xbrl.zip	Edgar Link	pending
exhibit311-certificati.htm	Edgar Link	pending
exhibit312-certificati.htm	Edgar Link	pending
exhibit321-certificati.htm	Edgar Link	pending
exhibit322-certificati.htm	Edgar Link	pending
exhibit45-warrantadjus.htm	Edgar Link	pending
exhibit951-minesafetyd.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
hymc-20200930.htm	Edgar Link	pending
hymc-20200930.xsd	Edgar Link	pending
hymc-20200930_cal.xml	Edgar Link	unprocessable
hymc-20200930_def.xml	Edgar Link	unprocessable
hymc-20200930_htm.xml	Edgar Link	completed
hymc-20200930_lab.xml	Edgar Link	unprocessable
hymc-20200930_pre.xml	Edgar Link	unprocessable
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$HYMC
HYCROFT MINING HOLDING CORP Stock $hymc

2020 Q4 Form 10-Q Financial Statement

#000162828020016024 Filed on November 09, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HYMC HYCROFT MINING HOLDING CORP Stock $hymc

2020 Q4 Form 10-Q Financial Statement

#000162828020016024 Filed on November 09, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HYMC
HYCROFT MINING HOLDING CORP Stock $hymc