$NC
NACCO INDUSTRIES INC Stock $nc

$nc Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000078993322000015 Filed on March 02, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$49.10M	$191.8M	$23.10M
YoY Change	112.57%	49.38%	-14.13%
Cost Of Revenue	$36.66M	$148.4M	$21.90M
YoY Change	67.38%	33.13%	-9.13%
Gross Profit	$12.45M	$43.45M	$1.200M
YoY Change	937.17%	156.07%	-58.62%
Gross Profit Margin	25.35%	22.65%	5.19%
Selling, General & Admin	$15.25M	$55.72M	$15.90M
YoY Change	-4.08%	5.01%	13.57%
% of Gross Profit	122.54%	128.24%	1325.0%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$761.0K	$23.09M	$300.0K
YoY Change	153.67%	27.44%	-25.0%
% of Gross Profit	6.11%	53.13%	25.0%
Operating Expenses	$16.01M	$59.22M	$16.30M
YoY Change	-1.77%	-7.07%	13.99%
Operating Profit	-$3.566M	$55.41M	-$15.10M
YoY Change	-76.38%	312.03%	32.46%
Interest Expense	$14.82M	$1.719M	$16.50M
YoY Change	-10.2%	26.96%	-4.07%
% of Operating Profit		3.1%
Other Income/Expense, Net	-$12.00K	$1.440M	-$500.0K
YoY Change	-97.6%	77.78%	-58.33%
Pretax Income	$11.32M	$56.90M	-$7.300M
YoY Change	-255.01%	297.9%	-255.32%
Income Tax	$3.494M	$8.700M	-$1.900M
% Of Pretax Income	30.88%	15.29%
Net Earnings	$7.822M	$48.13M	-$5.400M
YoY Change	-244.85%	225.32%	-184.38%
Net Earnings / Revenue	15.93%	25.09%	-23.38%
Basic Earnings Per Share		$6.73
Diluted Earnings Per Share	$1.071M	$6.69	-$771.4K
COMMON SHARES
Basic Shares Outstanding		7.146M shares
Diluted Shares Outstanding		7.190M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$86.01M	$86.01M	$88.50M
YoY Change	-2.82%	-2.82%	-27.99%
Cash & Equivalents	$86.01M	$86.01M	$88.45M
Short-Term Investments
Other Short-Term Assets	$14.62M	$16.64M	$8.308M
YoY Change	75.99%	52.63%	27.27%
Inventory	$54.09M	$54.09M	$47.55M
Prepaid Expenses
Receivables	$25.67M	$31.27M	$18.89M
Other Receivables	$15.05M	$15.05M	$17.60M
Total Short-Term Assets	$203.1M	$203.1M	$188.1M
YoY Change	7.92%	7.95%	-6.24%
LONG-TERM ASSETS
Property, Plant & Equipment	$202.1M	$202.1M	$182.7M
YoY Change	10.61%	10.61%	22.21%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$19.09M	$19.09M	$28.98M
YoY Change	-34.12%	-34.17%	17.74%
Other Assets	$46.23M	$51.23M	$40.98M
YoY Change	12.79%	24.94%	27.54%
Total Long-Term Assets	$304.2M	$304.2M	$288.0M
YoY Change	5.6%	5.58%	18.0%
TOTAL ASSETS
Total Short-Term Assets	$203.1M	$203.1M	$188.1M
Total Long-Term Assets	$304.2M	$304.2M	$288.0M
Total Assets	$507.2M	$507.2M	$476.2M
YoY Change	6.52%	6.51%	7.06%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$12.21M	$12.95M	$5.522M
YoY Change	121.08%	131.23%	-41.09%
Accrued Expenses	$17.80M	$17.80M	$15.90M
YoY Change	11.96%	11.96%	-53.78%
Deferred Revenue	$4.082M		$941.0K
YoY Change	333.79%		-0.32%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$2.527M	$2.527M	$22.10M
YoY Change	-88.57%	-88.57%	2679.87%
Total Short-Term Liabilities	$46.02M	$46.02M	$52.26M
YoY Change	-11.94%	-12.02%	-15.67%
LONG-TERM LIABILITIES
Long-Term Debt	$18.18M	$18.18M	$24.40M
YoY Change	-25.48%	-25.48%	42.29%
Other Long-Term Liabilities	$7.531M	$76.11M	$12.06M
YoY Change	-37.55%	-6.5%	94.89%
Total Long-Term Liabilities	$7.531M	$94.30M	$12.06M
YoY Change	-37.55%	-10.87%	-48.32%
TOTAL LIABILITIES
Total Short-Term Liabilities	$46.02M	$46.02M	$52.26M
Total Long-Term Liabilities	$7.531M	$94.30M	$12.06M
Total Liabilities	$155.1M	$155.1M	$175.6M
YoY Change	-11.65%	-11.67%	12.98%
SHAREHOLDERS EQUITY
Retained Earnings	$336.8M		$294.3M
YoY Change	14.45%		3.31%
Common Stock	$16.33M		$10.90M
YoY Change	49.89%		22.26%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$352.1M	$352.1M	$300.6M
YoY Change
Total Liabilities & Shareholders Equity	$507.2M	$507.2M	$476.2M
YoY Change	6.52%	6.51%	7.06%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$7.822M	$48.13M	-$5.400M
YoY Change	-244.85%	225.32%	-184.38%
Depreciation, Depletion And Amortization	$761.0K	$23.09M	$300.0K
YoY Change	153.67%	27.44%	-25.0%
Cash From Operating Activities	$7.081M	$74.88M	-$5.300M
YoY Change	-233.6%	-3111.87%	-196.36%
INVESTING ACTIVITIES
Capital Expenditures	-$9.027M	$39.23M	-$24.60M
YoY Change	-63.3%	29.96%	115.79%
Acquisitions
YoY Change
Other Investing Activities	-$81.00K	$219.0K	-$200.0K
YoY Change	-59.5%	17.11%	100.0%
Cash From Investing Activities	-$9.108M	-$44.15M	-$24.80M
YoY Change	-63.27%	-3.99%	115.65%
FINANCING ACTIVITIES
Cash Dividend Paid		$5.617M
YoY Change		4.5%
Common Stock Issuance & Retirement, Net		$0.00
YoY Change		-100.0%
Debt Paid & Issued, Net		$3.435M
YoY Change		153.69%
Cash From Financing Activities	525.0K	-$33.17M	20.90M
YoY Change	-97.49%	-336.48%	51.45%
NET CHANGE
Cash From Operating Activities	7.081M	$74.88M	-5.300M
Cash From Investing Activities	-9.108M	-$44.15M	-24.80M
Cash From Financing Activities	525.0K	-$33.17M	20.90M
Net Change In Cash	-1.502M	-$2.445M	-9.200M
YoY Change	-83.67%	-92.9%	-217.95%
FREE CASH FLOW
Cash From Operating Activities	$7.081M	$74.88M	-$5.300M
Capital Expenditures	-$9.027M	$39.23M	-$24.60M
Free Cash Flow	$16.11M	$35.65M	$19.30M
YoY Change	-16.54%	-209.1%	14.2%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000789933
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesCurrent
CY2021Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesCurrent
CY2021Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#LongTermDebtAndCapitalLeaseObligationsCurrent
CY2020Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#LongTermDebtAndCapitalLeaseObligationsCurrent
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#LongTermDebtAndCapitalLeaseObligations
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#LongTermDebtAndCapitalLeaseObligations
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	1-9172
CY2021	dei	Entity Registrant Name EntityRegistrantName	NACCO INDUSTRIES, INC.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	34-1505819
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	5875 Landerbrook Drive,
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 220
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Cleveland,
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	OH
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	44124-4069
CY2021	dei	City Area Code CityAreaCode	440
CY2021	dei	Local Phone Number LocalPhoneNumber	229-5151
CY2021	dei	Security12b Title Security12bTitle	Class A Common Stock, $1 par value per share
CY2021	dei	Trading Symbol TradingSymbol	NC
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	true
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	109032630	USD
CY2021	dei	Auditor Firm AuditorFirmId	42
CY2021	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2021	dei	Auditor Location AuditorLocation	Cleveland, Ohio
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	191846000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	128432000	USD
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	148394000	USD
CY2021	us-gaap	Gross Profit GrossProfit	43452000	USD
CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	111463000	USD
CY2020	us-gaap	Gross Profit GrossProfit	16969000	USD
CY2021	nacco	Earnings Of Unconsolidated Mines EarningsOfUnconsolidatedMines	60843000	USD
CY2020	nacco	Earnings Of Unconsolidated Mines EarningsOfUnconsolidatedMines	60203000	USD
CY2021	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	10333000	USD
CY2020	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	0	USD
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	55722000	USD
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	53062000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3556000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2572000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	60000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	269000	USD
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	8359000	USD
CY2021	us-gaap	Operating Expenses OperatingExpenses	59218000	USD
CY2020	us-gaap	Operating Expenses OperatingExpenses	63724000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	55410000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	13448000	USD
CY2021	us-gaap	Interest Expense InterestExpense	1719000	USD
CY2020	us-gaap	Interest Expense InterestExpense	1354000	USD
CY2021	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	449000	USD
CY2020	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	1200000	USD
CY2021	nacco	Nonoperating Income Expense Closed Mine Obligations NonoperatingIncomeExpenseClosedMineObligations	1297000	USD
CY2020	nacco	Nonoperating Income Expense Closed Mine Obligations NonoperatingIncomeExpenseClosedMineObligations	1641000	USD
CY2021	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	3423000	USD
CY2020	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	1226000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	584000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1379000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1440000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	810000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	56850000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	14258000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8725000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-535000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	48125000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	14793000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.73
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.11
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.69
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.10
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7146000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7026000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7190000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7057000	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	48125000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	14793000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	864000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-213000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	2851000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-697000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-170000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-129000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-572000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-435000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3423000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-262000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	51548000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	14531000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	86005000	USD
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CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	25667000	USD
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CY2020Q4	us-gaap	Inventory Net InventoryNet	47551000	USD
CY2021Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	15054000	USD
CY2020Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	17615000	USD
CY2021Q4	us-gaap	Prepaid Insurance PrepaidInsurance	2016000	USD
CY2020Q4	us-gaap	Prepaid Insurance PrepaidInsurance	2564000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	14621000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	8308000	USD
CY2021Q4	us-gaap	Assets Current AssetsCurrent	203053000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	188146000	USD
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CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	19090000	USD
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CY2020Q4	us-gaap	Assets Assets	476179000	USD
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CY2021Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	741000	USD
CY2020Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	125000	USD
CY2021Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	0	USD
CY2020Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	20000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	2527000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	2112000	USD
CY2021Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	1820000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	1844000	USD
CY2021Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	16339000	USD
CY2020Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	14430000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	4082000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	941000	USD
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	8299000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	7283000	USD
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	46016000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	52257000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	18183000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	24353000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	9733000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	11196000	USD
CY2021Q4	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	42131000	USD
CY2020Q4	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	39888000	USD
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	6605000	USD
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	8838000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	14792000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	17550000	USD
CY2021Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	10113000	USD
CY2020Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	9413000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	7531000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	12060000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	155104000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	175555000	USD
CY2021Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	16331000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	10895000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	336778000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	294270000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-8176000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-11599000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	352116000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	300624000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	507220000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	476179000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	48125000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	14793000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	23085000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	18114000	USD
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	326000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	334000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3553000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7517000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	5561000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	3078000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	60000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	269000	USD
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	1973000	USD
CY2021	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	USD
CY2020	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	8359000	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1647000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	3786000	USD
CY2021	us-gaap	Increase Decrease In Due From Affiliates Current IncreaseDecreaseInDueFromAffiliatesCurrent	-495000	USD
CY2020	us-gaap	Increase Decrease In Due From Affiliates Current IncreaseDecreaseInDueFromAffiliatesCurrent	-20000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	13685000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-42000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	6534000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	9361000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3320000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2582000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	7445000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-10622000	USD
CY2021	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	2699000	USD
CY2020	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-10790000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	6004000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-19306000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	74875000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-2486000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	39230000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	30187000	USD
CY2021	us-gaap	Payments To Acquire Mineral Rights PaymentsToAcquireMineralRights	5331000	USD
CY2020	us-gaap	Payments To Acquire Mineral Rights PaymentsToAcquireMineralRights	14181000	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	633000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	571000	USD
CY2021	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	0	USD
CY2020	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	2000000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	219000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	187000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-44147000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-45984000	USD
CY2021	us-gaap	Line Of Credit Facility Increase Decrease For Period Net LineOfCreditFacilityIncreaseDecreaseForPeriodNet	26000000	USD
CY2020	us-gaap	Line Of Credit Facility Increase Decrease For Period Net LineOfCreditFacilityIncreaseDecreaseForPeriodNet	-14000000	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3634000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	7427000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3435000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1354000	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	5617000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	5375000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1002000	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1755000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	332000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-33173000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	14028000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-2445000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-34442000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	88450000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	122892000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	86005000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	88450000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	289392000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3078000	USD
CY2020	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	0	USD
CY2020	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	1002000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	14793000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.7675
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5375000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-697000	USD
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-435000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	300624000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5561000	USD
CY2021	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	0	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	48125000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.7850
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5617000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	2851000	USD
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-572000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	352116000	USD
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	operatingSegment
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of Estimates:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and judgments. These estimates and judgments affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities (if any) at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</span>
CY2021	nacco	Performance Obligation Contract Term PerformanceObligationContractTerm	P5Y
CY2021	nacco	Contract With Customer Variable Consideration From Uncertainty Of Collectability Performance Obligation Satisfied In Previous Period ContractWithCustomerVariableConsiderationFromUncertaintyOfCollectabilityPerformanceObligationSatisfiedInPreviousPeriod	1800000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	191846000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	128432000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	191846000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	128432000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	18894000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	4984000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	941000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	3626000	USD
CY2021Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	25667000	USD
CY2021Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	5985000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	4082000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	488000	USD
CY2021	nacco	Increase Decrease In Contract With Customer Asset After Allowance For Credit Loss Current IncreaseDecreaseInContractWithCustomerAssetAfterAllowanceForCreditLossCurrent	6773000	USD
CY2021	nacco	Increase Decrease In Contract With Customer Asset After Allowance For Credit Loss Noncurrent IncreaseDecreaseInContractWithCustomerAssetAfterAllowanceForCreditLossNoncurrent	1001000	USD
CY2021	nacco	Increase Decrease In Contract With Customer Liability Current IncreaseDecreaseInContractWithCustomerLiabilityCurrent	3141000	USD
CY2021	nacco	Increase Decrease In Contract With Customer Liability Noncurrent IncreaseDecreaseInContractWithCustomerLiabilityNoncurrent	-3138000	USD
CY2021	nacco	Performance Obligation Contract Term PerformanceObligationContractTerm	P5Y
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	1400000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	900000	USD
CY2021	nacco	Performance Obligation Contract Term PerformanceObligationContractTerm	P5Y
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	4100000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	300000	USD
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	100000	USD
CY2021Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	0	USD
CY2021Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	19352000	USD
CY2020Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	17695000	USD
CY2021Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	34733000	USD
CY2020Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	29856000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	54085000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	47551000	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	2000000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	335633000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	296258000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	142466000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	123841000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	193167000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	172417000	USD
CY2021	nacco	Depreciation Depletion And Amortization Production DepreciationDepletionAndAmortizationProduction	19500000	USD
CY2020	nacco	Depreciation Depletion And Amortization Production DepreciationDepletionAndAmortizationProduction	15500000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3600000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2600000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	3100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	3100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	3100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	3100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	3100000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	36859000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	9809000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	6709000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2815000	USD
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-1042000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	41732000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1053000	USD
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	3300000	USD
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-28000	USD
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	43951000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	2377000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	2460000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	2068000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	5175000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	5492000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	2798000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	20370000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	1600000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	1400000	USD
CY2021Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	1800000	USD
CY2021Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	20500000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	20400000	USD
CY2020Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	45200000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	45000000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	8911000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10324000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	334000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1478000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1463000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1457000	USD
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	150000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1188000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	9733000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	11196000	USD
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	190000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	280000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	300000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	200000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	2122000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	2103000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	220000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	164000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	31000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	19000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	571000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	588000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1176000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	260000	USD
CY2021	us-gaap	Lease Cost LeaseCost	4120000	USD
CY2020	us-gaap	Lease Cost LeaseCost	3134000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	161000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2181000	USD
CY2021Q4	nacco	Lease Liability Payments Due Next Twelve Months LeaseLiabilityPaymentsDueNextTwelveMonths	2342000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	127000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1705000	USD
CY2021Q4	nacco	Lease Liability Payments Due Year Two LeaseLiabilityPaymentsDueYearTwo	1832000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	63000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1661000	USD
CY2021Q4	nacco	Lease Liability Payments Due Year Three LeaseLiabilityPaymentsDueYearThree	1724000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	7000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1469000	USD
CY2021Q4	nacco	Lease Liability Payments Due Year Four LeaseLiabilityPaymentsDueYearFour	1476000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1501000	USD
CY2021Q4	nacco	Lease Liability Payments Due Year Five LeaseLiabilityPaymentsDueYearFive	1501000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	6451000	USD
CY2021Q4	nacco	Lease Liability Payments Due After Year Five LeaseLiabilityPaymentsDueAfterYearFive	6451000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	358000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	14968000	USD
CY2021Q4	nacco	Lease Liability Payments Due LeaseLiabilityPaymentsDue	15326000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	18000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	3772000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	340000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	11196000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	19000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y4M17D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y11M1D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y5M8D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y4M17D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0708
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0700
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0416
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0411
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	2260000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	2223000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	31000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	275000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	623000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7146000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	7026000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	44000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	31000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7190000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	7057000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.73
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.10
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.11
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.69
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	57019000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	13990000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-169000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	268000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	56850000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	14258000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	10870000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-7859000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1443000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-408000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-35000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	215000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	12278000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-8052000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4449000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7847000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	896000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-330000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3553000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7517000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8725000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-535000	USD
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	11500000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	400000	USD
CY2021	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	2600000	USD
CY2020	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	4200000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	56850000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	14258000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	11939000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	2994000	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1890000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-626000	USD
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	725000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	426000	USD
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-6245000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Depletion IncomeTaxReconciliationNondeductibleExpenseDepletion	-3744000	USD
CY2021	nacco	Income Tax Reconciliation Research And Development And Other Federal Credits IncomeTaxReconciliationResearchAndDevelopmentAndOtherFederalCredits	363000	USD
CY2020	nacco	Income Tax Reconciliation Research And Development And Other Federal Credits IncomeTaxReconciliationResearchAndDevelopmentAndOtherFederalCredits	367000	USD
CY2021	nacco	Effective Income Tax Rate Reconciliation Tax Settlement And Uncertain Tax Position Amount EffectiveIncomeTaxRateReconciliationTaxSettlementAndUncertainTaxPositionAmount	166000	USD
CY2020	nacco	Effective Income Tax Rate Reconciliation Tax Settlement And Uncertain Tax Position Amount EffectiveIncomeTaxRateReconciliationTaxSettlementAndUncertainTaxPositionAmount	6286000	USD
CY2021	nacco	Effective Income Tax Rate Reconciliation Cares Act Carryback Rate Differential EffectiveIncomeTaxRateReconciliationCARESActCarrybackRateDifferential	0	USD
CY2020	nacco	Effective Income Tax Rate Reconciliation Cares Act Carryback Rate Differential EffectiveIncomeTaxRateReconciliationCARESActCarrybackRateDifferential	-4741000	USD
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	613000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-763000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8725000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-535000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.153
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.038
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8700000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	56900000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.153
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-500000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	14300000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.038
CY2020	nacco	Effective Income Tax Rate Reconciliation Discrete Tax Charges EffectiveIncomeTaxRateReconciliationDiscreteTaxCharges	7300000	USD
CY2020	nacco	Effective Income Tax Rate Reconciliation Discrete Tax Benefits EffectiveIncomeTaxRateReconciliationDiscreteTaxBenefits	4700000	USD
CY2021Q4	nacco	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	24500000	USD
CY2020Q4	nacco	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	27800000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	13837000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	17756000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	4522000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	3742000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	9243000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	10160000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	3496000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	2747000	USD
CY2021Q4	nacco	Deferred Tax Assets Land Valuation Adjustment DeferredTaxAssetsLandValuationAdjustment	5988000	USD
CY2020Q4	nacco	Deferred Tax Assets Land Valuation Adjustment DeferredTaxAssetsLandValuationAdjustment	5536000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	6527000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5401000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	68113000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	73142000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	11695000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	11549000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	56418000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	61593000	USD
CY2021Q4	nacco	Deferred Tax Liabilities Lease Right Of Use Assets DeferredTaxLiabilitiesLeaseRightOfUseAssets	24500000	USD
CY2020Q4	nacco	Deferred Tax Liabilities Lease Right Of Use Assets DeferredTaxLiabilitiesLeaseRightOfUseAssets	27800000	USD
CY2021Q4	nacco	Deferred Tax Liabilities Depreciation And Depletion DeferredTaxLiabilitiesDepreciationAndDepletion	25851000	USD
CY2020Q4	nacco	Deferred Tax Liabilities Depreciation And Depletion DeferredTaxLiabilitiesDepreciationAndDepletion	31972000	USD
CY2021Q4	nacco	Deferred Tax Liabilities Partnership Investment Development Costs DeferredTaxLiabilitiesPartnershipInvestmentDevelopmentCosts	9840000	USD
CY2020Q4	nacco	Deferred Tax Liabilities Partnership Investment Development Costs DeferredTaxLiabilitiesPartnershipInvestmentDevelopmentCosts	11686000	USD
CY2021Q4	nacco	Deferred Tax Liabilities Accrued Pension Benefits DeferredTaxLiabilitiesAccruedPensionBenefits	10941000	USD
CY2020Q4	nacco	Deferred Tax Liabilities Accrued Pension Benefits DeferredTaxLiabilitiesAccruedPensionBenefits	7685000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	71132000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	79143000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	14714000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	17550000	USD
CY2020Q4	nacco	Operating Loss Carryforwards And Tax Credit Carryforward Net Deferred Tax Asset Amount OperatingLossCarryforwardsAndTaxCreditCarryforwardNetDeferredTaxAssetAmount	21356000	USD
CY2020Q4	nacco	Operating Loss Carryforwards And Tax Credit Carryforward Valuation Allowance Amount OperatingLossCarryforwardsAndTaxCreditCarryforwardValuationAllowanceAmount	14478000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	6400000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	6300000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10459000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2860000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	95000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2774000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	803000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5628000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10554000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10459000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	100000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	-100000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	200000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	100000	USD
CY2021	nacco	Payments To Acquire Property Plant And Equipment And Mineral Rights PaymentsToAcquirePropertyPlantAndEquipmentAndMineralRights	44561000	USD
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2900000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2800000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	191846000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	128432000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	55410000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	13448000	USD
CY2020	nacco	Payments To Acquire Property Plant And Equipment And Mineral Rights PaymentsToAcquirePropertyPlantAndEquipmentAndMineralRights	44368000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	23085000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	18114000	USD
CY2020Q4	nacco	Voluntary Separation Plan Pre Tax Charges VoluntarySeparationPlanPreTaxCharges	1800000	USD
CY2021	us-gaap	Payments To Acquire Mineral Rights PaymentsToAcquireMineralRights	5300000	USD
CY2020	us-gaap	Payments To Acquire Mineral Rights PaymentsToAcquireMineralRights	14200000	USD
CY2021Q4	srt	Gas And Oil Area Developed Gross GasAndOilAreaDevelopedGross	20600	acre
CY2021Q4	srt	Gas And Oil Area Developed Net GasAndOilAreaDevelopedNet	1800	acre
CY2020Q4	srt	Gas And Oil Area Developed Gross GasAndOilAreaDevelopedGross	65500	acre
CY2020Q4	srt	Gas And Oil Area Developed Net GasAndOilAreaDevelopedNet	1200	acre
CY2021Q4	nacco	Proved Developed Oil And Gas Property Successful Effort Method ProvedDevelopedOilAndGasPropertySuccessfulEffortMethod	3266000	USD
CY2021Q4	nacco	Proved Undeveloped Oil And Gas Property Successful Effort Method ProvedUndevelopedOilAndGasPropertySuccessfulEffortMethod	16246000	USD
CY2021Q4	us-gaap	Oil And Gas Property Successful Effort Method Accumulated Depreciation Depletion Amortization And Impairment OilAndGasPropertySuccessfulEffortMethodAccumulatedDepreciationDepletionAmortizationAndImpairment	868000	USD
CY2021Q4	us-gaap	Oil And Gas Property Successful Effort Method Net OilAndGasPropertySuccessfulEffortMethodNet	18644000	USD
CY2021Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Cash Inflows FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows	71400000	USD
CY2021Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Production Costs FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts	14664000	USD
CY2021Q4	nacco	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Before Income Tax Expenses Gross FutureNetCashFlowsRelatingToProvedOilAndGasReservesBeforeIncomeTaxExpensesGross	56736000	USD
CY2021Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Net Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows	44821000	USD
CY2021Q4	nacco	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows Gross FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlowsGross	19897000	USD
CY2021Q4	srt	Future Net Cash Flows Relating To Proved Oil And Gas Reserves Ten Percent Annual Discount For Estimated Timing Of Cash Flows FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows	15719000	USD
CY2021Q4	nacco	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves Gross StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesGross	36839000	USD
CY2021Q4	srt	Standardized Measure Of Discounted Future Net Cash Flows Relating To Proved Oil And Gas Reserves StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves	29102000	USD

Files In Submission

Name	View Source	Status
0000789933-22-000015-index-headers.html	Edgar Link	pending
0000789933-22-000015-index.html	Edgar Link	pending
0000789933-22-000015.txt	Edgar Link	pending
0000789933-22-000015-xbrl.zip	Edgar Link	pending
coyote-figure134croppeda.jpg	Edgar Link	pending
coyote-figure151bottomhalfa.jpg	Edgar Link	pending
exhibit1029.htm	Edgar Link	pending
exhibit1036.htm	Edgar Link	pending
exhibit21202110-k.htm	Edgar Link	pending
exhibit231202110-k.htm	Edgar Link	pending
exhibit2410202110-k.htm	Edgar Link	pending
exhibit2411202110-k.htm	Edgar Link	pending
exhibit241202110-k.htm	Edgar Link	pending
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exhibit311202110-k.htm	Edgar Link	pending
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exhibit95202110-k.htm	Edgar Link	pending
exhibit961-coteausk1300.htm	Edgar Link	pending
exhibit962-coyotesk1300.htm	Edgar Link	pending
exhibit963-falkirksk1300.htm	Edgar Link	pending
exhibit964-mlmcsk1300.htm	Edgar Link	pending
exhibit991-2021.htm	Edgar Link	pending
exhibit992-supplschedule.htm	Edgar Link	pending
exhibit992-supplschedule001.jpg	Edgar Link	pending
exhibit992-supplschedule002.jpg	Edgar Link	pending
exhibit992-supplschedule003.jpg	Edgar Link	pending
exhibit992-supplschedule004.jpg	Edgar Link	pending
exhibit992-supplschedule005.jpg	Edgar Link	pending
exhibit992-supplschedule006.jpg	Edgar Link	pending
exhibit992-supplschedule007.jpg	Edgar Link	pending
exhibit992-supplschedule008.jpg	Edgar Link	pending
exhibit992-supplschedule009.jpg	Edgar Link	pending
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exhibit992-supplschedule014.jpg	Edgar Link	pending
exhibit992-supplschedule015.jpg	Edgar Link	pending
exhibit992-supplschedule016.jpg	Edgar Link	pending
exhibit992-supplschedule017.jpg	Edgar Link	pending
exhibit992-supplschedule018.jpg	Edgar Link	pending
exhibit992-supplschedule019.jpg	Edgar Link	pending
exhibit992-supplschedule020.jpg	Edgar Link	pending
exhibit992-supplschedule021.jpg	Edgar Link	pending
exhibit992-supplschedule022.jpg	Edgar Link	pending
exhibit992-supplschedule023.jpg	Edgar Link	pending
exhibit992-supplschedule024.jpg	Edgar Link	pending
exhibit992-supplschedule025.jpg	Edgar Link	pending
exhibit992-supplschedule026.jpg	Edgar Link	pending
exhibit992-supplschedule027.jpg	Edgar Link	pending
exhibit992-supplschedule028.jpg	Edgar Link	pending
exhibit992-supplschedule029.jpg	Edgar Link	pending
exhibit992-supplschedule030.jpg	Edgar Link	pending
exhibit992-supplschedule031.jpg	Edgar Link	pending
exhibit992-supplschedule032.jpg	Edgar Link	pending
exhibit992-supplschedule033.jpg	Edgar Link	pending
exhibit992-supplschedule034.jpg	Edgar Link	pending
exhibit992-supplschedule035.jpg	Edgar Link	pending
exhibit992-supplschedule036.jpg	Edgar Link	pending
exhibit992-supplschedule037.jpg	Edgar Link	pending
exhibit992-supplschedule038.jpg	Edgar Link	pending
exhibit992-supplschedule039.jpg	Edgar Link	pending
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2021 Q4 Form 10-K Financial Statement

#000078993322000015 Filed on March 02, 2022

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$NC NACCO INDUSTRIES INC Stock $nc

2021 Q4 Form 10-K Financial Statement

#000078993322000015 Filed on March 02, 2022

Income Statement

Balance Sheet

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Facts In Submission

Files In Submission

$NC
NACCO INDUSTRIES INC Stock $nc