$NG
NOVAGOLD RESOURCES INC Stock $ng

$ng Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000117184322000514 Filed on January 26, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$0.00	$0.00	$0.00
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$5.005M	$20.20M	$4.888M
YoY Change	2.39%	7.88%	32.57%
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.000K	$7.000K	$1.000K
YoY Change	0.0%	0.0%	-75.0%
% of Gross Profit
Operating Expenses	$5.006M	$36.84M	$4.889M
YoY Change	2.39%	10.83%	32.46%
Operating Profit		-$36.84M	-$7.973M
YoY Change		10.83%	6.02%
Interest Expense	-$4.707M	-$22.01M	-$4.540M
YoY Change	3.68%	16.15%	-3.28%
% of Operating Profit
Other Income/Expense, Net	-$529.0K	-$198.0K	$854.0K
YoY Change	-161.94%	-112.62%	3.64%
Pretax Income	-$10.24M	-$40.40M	-$8.575M
YoY Change	19.44%	17.63%	13.41%
Income Tax	$27.00K	$137.0K	-$1.575M
% Of Pretax Income
Net Earnings	-$10.27M	-$40.54M	-$7.000M
YoY Change	46.7%	20.77%	-11.02%
Net Earnings / Revenue
Basic Earnings Per Share		-$0.12
Diluted Earnings Per Share	-$30.94K	-$122.3K	-$21.21K
COMMON SHARES
Basic Shares Outstanding		331.5K
Diluted Shares Outstanding

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$169.1M	$169.1M	$121.9M
YoY Change	38.73%	38.73%	-17.94%
Cash & Equivalents	$91.12M	$91.12M	$60.91M
Short-Term Investments	$78.00M	$78.00M	$61.00M
Other Short-Term Assets	$327.0K	$25.00K	$1.869M
YoY Change	-82.5%	-98.07%	4.41%
Inventory
Prepaid Expenses	$25.00K		$1.292M
Receivables	$302.0K	$302.0K	$73.19M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$169.5M	$169.5M	$196.4M
YoY Change	-13.72%	-13.72%	30.63%
LONG-TERM ASSETS
Property, Plant & Equipment	$423.0K	$423.0K	$634.0K
YoY Change	-33.28%	-33.28%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$5.406M	$5.406M	$4.016M
YoY Change	34.61%	34.61%	118.26%
Other Assets	$2.253M		$2.036M
YoY Change	10.66%		108.39%
Total Long-Term Assets	$29.40M	$29.40M	$28.06M
YoY Change	4.8%	4.8%	-70.62%
TOTAL ASSETS
Total Short-Term Assets	$169.5M	$169.5M	$196.4M
Total Long-Term Assets	$29.40M	$29.40M	$28.06M
Total Assets	$198.9M	$198.9M	$224.4M
YoY Change	-11.4%	-11.4%	-8.7%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$682.0K	$682.0K	$900.0K
YoY Change	-24.22%	-24.22%	2.27%
Accrued Expenses	$2.861M	$2.861M	$2.422M
YoY Change	18.13%	18.13%	13.02%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$4.383M	$4.383M	$3.509M
YoY Change	24.91%	24.91%	4.97%
LONG-TERM LIABILITIES
Long-Term Debt	$115.7M	$115.7M	$109.8M
YoY Change	5.39%	5.39%	5.79%
Other Long-Term Liabilities	$464.0K	$464.0K	$404.0K
YoY Change	14.85%	14.85%
Total Long-Term Liabilities	$464.0K	$116.2M	$404.0K
YoY Change	14.85%	5.43%	-99.61%
TOTAL LIABILITIES
Total Short-Term Liabilities	$4.383M	$4.383M	$3.509M
Total Long-Term Liabilities	$464.0K	$116.2M	$404.0K
Total Liabilities	$120.6M	$120.6M	$113.7M
YoY Change	6.03%	6.03%	5.41%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.959B		-$1.919B
YoY Change	2.11%		1.78%
Common Stock	$1.979B		$1.972B
YoY Change	0.33%		0.33%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$78.28M	$78.28M	$110.7M
YoY Change
Total Liabilities & Shareholders Equity	$198.9M	$198.9M	$224.4M
YoY Change	-11.4%	-11.4%	-8.7%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	-$10.27M	-$40.54M	-$7.000M
YoY Change	46.7%	20.77%	-11.02%
Depreciation, Depletion And Amortization	$1.000K	$7.000K	$1.000K
YoY Change	0.0%	0.0%	-75.0%
Cash From Operating Activities	-$1.724M	-$9.863M	-$2.863M
YoY Change	-39.78%	-1.57%	239.62%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	-$24.78M	$0.00	$18.31M
YoY Change	-235.38%		26.19%
Cash From Investing Activities	-$24.78M	$40.39M	$18.31M
YoY Change	-235.38%	755.04%	26.19%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	0.000	-$731.0K	0.000
YoY Change		-55.75%
NET CHANGE
Cash From Operating Activities	-1.724M	-$9.863M	-2.863M
Cash From Investing Activities	-24.78M	$40.39M	18.31M
Cash From Financing Activities	0.000	-$731.0K	0.000
Net Change In Cash	-26.51M	$30.22M	15.44M
YoY Change	-271.64%	-554.88%	13.03%
FREE CASH FLOW
Cash From Operating Activities	-$1.724M	-$9.863M	-$2.863M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	330400000
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	330400000
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	91124000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	60906000	USD
CY2021Q4	us-gaap	Deposits Assets DepositsAssets	78000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P5Y
CY2021Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2020Q4	us-gaap	Deposits Assets DepositsAssets	61000000	USD
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2020Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	72611000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	327000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1869000	USD
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	332921907
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000
CY2021Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2020Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	332400000
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	332400000
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2021Q4	us-gaap	Assets Current AssetsCurrent	169451000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	196386000	USD
CY2021Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	23572000	USD
CY2020Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	23405000	USD
CY2021Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	3576000	USD
CY2020Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	2614000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2253000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2036000	USD
CY2021Q4	us-gaap	Assets Assets	198852000	USD
CY2020Q4	us-gaap	Assets Assets	224441000	USD
CY2021Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	682000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	900000	USD
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	2637000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	2215000	USD
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1064000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	394000	USD
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	4383000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3509000	USD
CY2021Q4	us-gaap	Long Term Notes Payable LongTermNotesPayable	115723000	USD
CY2020Q4	us-gaap	Long Term Notes Payable LongTermNotesPayable	109801000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	464000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	404000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	120570000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	113714000	USD
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	1978520000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	1972029000	USD
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	82216000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	81203000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1959165000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1918629000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-23289000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-23876000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	78282000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	110727000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	198852000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	224441000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	20210000	USD
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CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-16625000	USD
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CY2021	us-gaap	Operating Expenses OperatingExpenses	36835000	USD
CY2020	us-gaap	Operating Expenses OperatingExpenses	33237000	USD
CY2019	us-gaap	Operating Expenses OperatingExpenses	26812000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-36835000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-33237000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	-26812000	USD
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	5922000	USD
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	6014000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	7286000	USD
CY2021	ng	Notes Receivable Accretion NotesReceivableAccretion	2556000	USD
CY2020	ng	Notes Receivable Accretion NotesReceivableAccretion	3337000	USD
CY2019	ng	Notes Receivable Accretion NotesReceivableAccretion	3220000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-198000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1569000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	4395000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-40399000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-34345000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-26483000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	137000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-781000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1278000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-40536000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-33564000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-27761000	USD
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	587000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	932000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	48000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	587000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	932000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	48000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-39949000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-32632000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-27713000	USD
CY2021	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.12
CY2020	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.10
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CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-10020000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-6127000	USD
CY2021	ng	Proceeds From Term Deposits ProceedsFromTermDeposits	141578000	USD
CY2020	ng	Proceeds From Term Deposits ProceedsFromTermDeposits	81000000	USD
CY2019	ng	Proceeds From Term Deposits ProceedsFromTermDeposits	219000000	USD
CY2021	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	158799000	USD
CY2020	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	61000000	USD
CY2019	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	154000000	USD
CY2021	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	75000000	USD
CY2020	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2021	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	331546000
CY2020	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	329269000
CY2019	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	325785000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-40536000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-33564000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-27761000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-16625000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-14502000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-10491000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	8235000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	7057000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	6176000	USD
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	5922000	USD
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	6014000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	7286000	USD
CY2021	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	938000	USD
CY2020	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	0	USD
CY2019	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	0	USD
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-336000	USD
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-606000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	20000	USD
CY2021	ng	Notes Receivable Accretion NotesReceivableAccretion	2556000	USD
CY2020	ng	Notes Receivable Accretion NotesReceivableAccretion	3337000	USD
CY2019	ng	Notes Receivable Accretion NotesReceivableAccretion	3220000	USD
CY2021	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	418000	USD
CY2020	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	431000	USD
CY2019	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	93000	USD
CY2021	ng	Gain On Sale Of Mineral Property GainOnSaleOfMineralProperty	200000	USD
CY2020	ng	Gain On Sale Of Mineral Property GainOnSaleOfMineralProperty	-0	USD
CY2019	ng	Gain On Sale Of Mineral Property GainOnSaleOfMineralProperty	-0	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-751000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	671000	USD
CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	7000	USD
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	19000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	15000	USD
CY2021	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-1784000	USD
CY2020	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	135000	USD
CY2019	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-328000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-9863000	USD
CY2019	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2021	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	17587000	USD
CY2020	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	15276000	USD
CY2019	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	11122000	USD
CY2021	ng	Proceeds From Sale Of Mineral Property ProceedsFromSaleOfMineralProperty	200000	USD
CY2020	ng	Proceeds From Sale Of Mineral Property ProceedsFromSaleOfMineralProperty	0	USD
CY2019	ng	Proceeds From Sale Of Mineral Property ProceedsFromSaleOfMineralProperty	0	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-0	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-0	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	17000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	40392000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	4724000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	53861000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	731000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1652000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1197000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-731000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1652000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1197000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	420000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	305000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	8000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	30218000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-6643000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	46545000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	60906000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	67549000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	21004000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	91124000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	60906000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	67549000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	160688000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6176000	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1197000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-27761000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	48000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	137954000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7057000	USD
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1652000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-33564000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	932000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	110727000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8235000	USD
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	731000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-40536000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	587000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	78282000	USD
CY2021	us-gaap	Revenues Revenues	0	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	96016000	USD
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	92679000	USD
CY2018Q4	us-gaap	Notes Receivable Net NotesReceivableNet	89459000	USD
CY2021	ng	Notes Receivable Accretion NotesReceivableAccretion	2556000	USD
CY2020	ng	Notes Receivable Accretion NotesReceivableAccretion	3337000	USD
CY2019	ng	Notes Receivable Accretion NotesReceivableAccretion	3220000	USD
CY2021	ng	Notes Receivable Payments NotesReceivablePayments	75000000	USD
CY2020	ng	Notes Receivable Payments NotesReceivablePayments	0	USD
CY2019	ng	Notes Receivable Payments NotesReceivablePayments	0	USD
CY2021Q4	us-gaap	Notes Receivable Net NotesReceivableNet	23572000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	96016000	USD
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	92679000	USD
CY2021Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	0	USD
CY2020Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	72611000	USD
CY2021Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	23572000	USD
CY2020Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	23405000	USD
CY2021Q4	us-gaap	Notes Receivable Net NotesReceivableNet	23572000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	96016000	USD
CY2021Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	302000	USD
CY2020Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	577000	USD
CY2021Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	25000	USD
CY2020Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	1292000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	327000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1869000	USD
CY2021Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	1830000	USD
CY2020Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	1402000	USD
CY2021Q4	ng	Office Equipment OfficeEquipment	27000	USD
CY2020Q4	ng	Office Equipment OfficeEquipment	34000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2253000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2036000	USD
CY2020Q4	us-gaap	Notes Payable NotesPayable	109801000	USD
CY2019Q4	us-gaap	Notes Payable NotesPayable	103787000	USD
CY2018Q4	us-gaap	Notes Payable NotesPayable	96501000	USD
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	5922000	USD
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	6014000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	7286000	USD
CY2021Q4	us-gaap	Notes Payable NotesPayable	115723000	USD
CY2020Q4	us-gaap	Notes Payable NotesPayable	109801000	USD
CY2019Q4	us-gaap	Notes Payable NotesPayable	103787000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	239000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	92000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	93000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	8000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	432000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	24000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	235000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	216000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	127000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	120000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	5000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	4000	USD
CY2021	us-gaap	Lease Cost LeaseCost	367000	USD
CY2020	us-gaap	Lease Cost LeaseCost	340000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y3M18D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.05	pure
CY2021Q4	ng	Remediation Current Liabilities RemediationCurrentLiabilities	840000	USD
CY2020Q4	ng	Remediation Current Liabilities RemediationCurrentLiabilities	182000	USD
CY2021Q4	ng	Lease Obligations Current LeaseObligationsCurrent	224000	USD
CY2020Q4	ng	Lease Obligations Current LeaseObligationsCurrent	207000	USD
CY2021Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	0	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	5000	USD
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1064000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	394000	USD
CY2021Q4	ng	Remediation Noncurrent Liabilities RemediationNoncurrentLiabilities	280000	USD
CY2021Q4	ng	Lease Obligations Noncurrent LeaseObligationsNoncurrent	184000	USD
CY2020Q4	ng	Lease Obligations Noncurrent LeaseObligationsNoncurrent	404000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	464000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	404000	USD
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	332415547
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	330411589
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1830000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1402000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	8235000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	7057000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	6176000	USD
CY2021	us-gaap	Salaries And Wages SalariesAndWages	6599000	USD
CY2020	us-gaap	Salaries And Wages SalariesAndWages	6274000	USD
CY2019	us-gaap	Salaries And Wages SalariesAndWages	5904000	USD
CY2021	us-gaap	Other General Expense OtherGeneralExpense	2544000	USD
CY2020	us-gaap	Other General Expense OtherGeneralExpense	2199000	USD
CY2019	us-gaap	Other General Expense OtherGeneralExpense	2311000	USD
CY2021	us-gaap	Professional Fees ProfessionalFees	1849000	USD
CY2020	us-gaap	Professional Fees ProfessionalFees	2139000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	972000	USD
CY2021	ng	Corporate Communications And Regulatory Expense CorporateCommunicationsAndRegulatoryExpense	976000	USD
CY2020	ng	Corporate Communications And Regulatory Expense CorporateCommunicationsAndRegulatoryExpense	1059000	USD
CY2019	ng	Corporate Communications And Regulatory Expense CorporateCommunicationsAndRegulatoryExpense	943000	USD
CY2021	us-gaap	Depreciation Depreciation	7000	USD
CY2020	us-gaap	Depreciation Depreciation	7000	USD
CY2019	us-gaap	Depreciation Depreciation	15000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	20210000	USD
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	18735000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	16321000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	29399000
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8235000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7057000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6176000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	10403000
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	4.59
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1254000
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	9.91
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	3055000
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	4.46
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	8602000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	5.43
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y2M1D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	16318000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	5242000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	4.24
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P1Y6M21D
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	13512000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.472	pure
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.461	pure
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.469	pure
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.003	pure
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.015	pure
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.027	pure
CY2021	ng	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitureRate	0.030	pure
CY2020	ng	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitureRate	0.031	pure
CY2019	ng	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitureRate	0.031	pure
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.63
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	2.70
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	1.46
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	12543000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	24137000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	20527000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	2496000	USD
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	458000	USD
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	1744000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	4190000	USD
CY2021	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	418000	USD
CY2020	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	431000	USD
CY2019	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	93000	USD
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-336000	USD
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-606000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	20000	USD
CY2021	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	938000	USD
CY2020	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	-0	USD
CY2019	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	-0	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	200000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	0	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	92000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-198000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1569000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	4395000	USD
CY2021	ng	Effective Income Tax Rate Reconciliation Combined Federal And Provincial Statutory Income Tax Rate Percent EffectiveIncomeTaxRateReconciliationCombinedFederalAndProvincialStatutoryIncomeTaxRatePercent	0.27	pure
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-26483000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	110000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	27000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-30000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	607000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	137000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-30000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	607000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-751000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	671000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-751000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	671000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	137000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-781000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1278000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-17723000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-16447000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-12584000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-22676000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-17898000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-13899000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-40399000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-34345000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	6773000	USD
CY2021	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-1000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	44000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-3000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	137000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-781000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1278000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.003	pure
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.023	pure
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.048	pure
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-40399000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-34345000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-26483000	USD
CY2021	ng	Effective Income Tax Rate Reconciliation Combined Federal And Provincial Statutory Income Tax Rate Percent EffectiveIncomeTaxRateReconciliationCombinedFederalAndProvincialStatutoryIncomeTaxRatePercent	0.27	pure
CY2020	ng	Effective Income Tax Rate Reconciliation Combined Federal And Provincial Statutory Income Tax Rate Percent EffectiveIncomeTaxRateReconciliationCombinedFederalAndProvincialStatutoryIncomeTaxRatePercent	0.27	pure
CY2019	ng	Effective Income Tax Rate Reconciliation Combined Federal And Provincial Statutory Income Tax Rate Percent EffectiveIncomeTaxRateReconciliationCombinedFederalAndProvincialStatutoryIncomeTaxRatePercent	0.27	pure
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-10908000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-9273000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-7150000	USD
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2483000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	1911000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2136000	USD
CY2021	ng	Effective Income Tax Rate Reconciliation Foreign Accrual Property Income Amount EffectiveIncomeTaxRateReconciliationForeignAccrualPropertyIncomeAmount	771000	USD
CY2020	ng	Effective Income Tax Rate Reconciliation Foreign Accrual Property Income Amount EffectiveIncomeTaxRateReconciliationForeignAccrualPropertyIncomeAmount	652000	USD
CY2019	ng	Effective Income Tax Rate Reconciliation Foreign Accrual Property Income Amount EffectiveIncomeTaxRateReconciliationForeignAccrualPropertyIncomeAmount	180000	USD
CY2021	ng	Effective Income Tax Rate Reconciliation Consolidated Return For Us Subsidiaries EffectiveIncomeTaxRateReconciliationConsolidatedReturnForUSSubsidiaries	0	USD
CY2020	ng	Effective Income Tax Rate Reconciliation Consolidated Return For Us Subsidiaries EffectiveIncomeTaxRateReconciliationConsolidatedReturnForUSSubsidiaries	-751000	USD
CY2019	ng	Effective Income Tax Rate Reconciliation Consolidated Return For Us Subsidiaries EffectiveIncomeTaxRateReconciliationConsolidatedReturnForUSSubsidiaries	0	USD
CY2021	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	323000	USD
CY2020	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	2000	USD
CY2019	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	658000	USD
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	8115000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	6638000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	184833000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	183422000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	50969000	USD
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CY2021Q4	ng	Deferred Tax Assets Mineral Properties DeferredTaxAssetsMineralProperties	663000	USD
CY2020Q4	ng	Deferred Tax Assets Mineral Properties DeferredTaxAssetsMineralProperties	654000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	491000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	484000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	207000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	203000	USD
CY2021Q4	ng	Deferred Tax Assets Investment In Noncontrolled Affiliates DeferredTaxAssetsInvestmentInNoncontrolledAffiliates	38931000	USD
CY2020Q4	ng	Deferred Tax Assets Investment In Noncontrolled Affiliates DeferredTaxAssetsInvestmentInNoncontrolledAffiliates	35933000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	2105000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	2105000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	265000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	316000	USD
CY2021Q4	ng	Deferred Tax Assets Retirement Obligation DeferredTaxAssetsRetirementObligation	318000	USD
CY2020Q4	ng	Deferred Tax Assets Retirement Obligation DeferredTaxAssetsRetirementObligation	52000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	980000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	633000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	279762000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	273109000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	278790000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	271016000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	972000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	2093000	USD
CY2021Q4	ng	Deferred Tax Liabilities Notes Receivable DeferredTaxLiabilitiesNotesReceivable	701000	USD
CY2020Q4	ng	Deferred Tax Liabilities Notes Receivable DeferredTaxLiabilitiesNotesReceivable	1975000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	271000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	118000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	972000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	2093000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	-0	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	-0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	278790000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	271016000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1605000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	65000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-646000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-240000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-137000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	84000	USD
CY2021	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	419000	USD
CY2020	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	67000	USD
CY2019	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-402000	USD
CY2021	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-1784000	USD
CY2020	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	135000	USD
CY2019	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-328000	USD
CY2021	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	1024000	USD
CY2020	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	2265000	USD
CY2019	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	3094000	USD
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	142000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	376000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	692000	USD

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2021 Q4 Form 10-K Financial Statement

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$NG NOVAGOLD RESOURCES INC Stock $ng

2021 Q4 Form 10-K Financial Statement

#000117184322000514 Filed on January 26, 2022

Income Statement

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$NG
NOVAGOLD RESOURCES INC Stock $ng