Nature of Operations and Basis of Presentation	6 Months Ended
Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations and Basis of Presentation	Nature of Operations and Basis of Presentation Nature of Operations The accompanying Unaudited Condensed Consolidated Financial Statements include the accounts of NACCO Industries, Inc. (the “parent company” or “NACCO”) and its wholly owned subsidiaries (collectively, “NACCO Industries, Inc. and Subsidiaries” or the “Company”). Intercompany accounts and transactions are eliminated in consolidation. The Company's subsidiaries operate in the following principal industries: mining, consumer, commercial and specialty small appliances and specialty retail. The Company manages its subsidiaries primarily by industry. The North American Coal Corporation and its affiliated companies (collectively, “NACoal”) mine coal primarily for use in power generation and provide value-added services for natural resource companies. Hamilton Beach Brands, Inc. (“HBB”) is a leading designer, marketer and distributor of branded small electric household and specialty housewares appliances, as well as commercial products for restaurants, bars and hotels. The Kitchen Collection, LLC (“KC”) is a national specialty retailer of kitchenware in outlet and traditional malls throughout the United States. NACoal has the following operating coal mining subsidiaries: Bisti Fuels Company, LLC ("Bisti"), Caddo Creek Resources Company, LLC (“Caddo Creek”), Camino Real Fuels, LLC (“Camino Real”), The Coteau Properties Company (“Coteau”), Coyote Creek Mining Company, LLC (“Coyote Creek”), Demery Resources Company, LLC (“Demery”), The Falkirk Mining Company (“Falkirk”), Liberty Fuels Company, LLC (“Liberty”), Mississippi Lignite Mining Company (“MLMC”) and The Sabine Mining Company (“Sabine”). All of the operating coal mining subsidiaries other than MLMC are unconsolidated (collectively the "Unconsolidated Mines"). The Unconsolidated Mines were formed to develop, construct and/or operate surface coal mines under long-term contracts and are capitalized primarily with debt financing provided by or supported by their respective customers, and without recourse to NACCO and NACoal. The contracts with the customers of the Unconsolidated Mines provide for reimbursement to the company at a price based on actual costs plus an agreed upon pre-tax profit per ton of coal sold or actual costs plus an agreed upon fee per btu of heating value delivered. The fees earned at each mine adjust over time in line with various indices which reflect general U.S. inflation rates. Although NACoal owns 100% of the equity and manages the daily operations of the Unconsolidated Mines, the Company has determined that the equity capital provided by NACoal is not sufficient to adequately finance the ongoing activities or absorb any expected losses without additional support from the customers. The customers have a controlling financial interest and have the power to direct the activities that most significantly affect the economic performance of the entities. As a result, NACoal is not the primary beneficiary and therefore does not consolidate these entities' financial position or results of operations. The income taxes resulting from operations of the Unconsolidated Mines are solely the responsibility of the Company. The pre-tax income from the Unconsolidated Mines is reported on the line “Earnings of unconsolidated mines” in the Consolidated Statements of Operations, with related taxes included in the provision for income taxes. The Company has included the pre-tax earnings of the Unconsolidated Mines above operating profit as they are an integral component of the Company's business and operating results. MLMC is a consolidated entity because NACoal pays all operating costs and provides the capital for the mine. MLMC sells coal to its customer at a contractually agreed upon price which adjusts monthly, primarily based on changes in the level of established indices which reflect general U.S. inflation rates. Centennial Natural Resources, LLC ("Centennial"), which ceased coal production in the fourth quarter of 2015, is also a consolidated entity. NACoal provides value-added mining services for independently owned limerock quarries through its North American Mining ("NAM") division. NAM is reimbursed by its customers based on actual costs plus a management fee. The financial results for NAM are included in consolidated mining operations or unconsolidated mining operations based on each entity's structure. NACoal also provides coal handling, processing and drying services for a number of customers. For example, NoDak Energy Services, LLC ("NoDak") operates and maintains a coal processing facility for a customer's power plant. The pre-tax income from NoDak is reported on the line "Income from other unconsolidated affiliates" in the "Other (income) expense" section of the Consolidated Statements of Operations, with the related income taxes included in the provision for income taxes. North American Coal Royalty Company, a consolidated entity, provides surface and mineral acquisition and lease maintenance services related to the Company's operations. All of the unconsolidated subsidiaries are accounted for under the equity method. See Note 6 for further discussion. Basis of Presentation These financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the financial position of the Company at June 30, 2017 and the results of its operations, comprehensive income (loss), cash flows and changes in equity for the six months ended June 30, 2017 and 2016 have been included. These Unaudited Condensed Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2016. The balance sheet at December 31, 2016 has been derived from the audited financial statements at that date but does not include all of the information or notes required by U.S. GAAP for complete financial statements. Operating results for the three and six months ended June 30, 2017 are not necessarily indicative of the results that may be expected for the remainder of the year ending December 31, 2017. The HBB and KC businesses are seasonal and a majority of revenues and operating profit typically occurs in the second half of the calendar year when sales of consumer, commercial and specialty small appliances to retailers and consumers increase significantly for the fall holiday selling season. For further information regarding seasonality of these businesses, refer to the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2016.

Nature of Operations and Basis of Presentation

Nature of Operations

The accompanying Unaudited Condensed Consolidated Financial Statements include the accounts of NACCO Industries, Inc. (the “parent company” or “NACCO”) and its wholly owned subsidiaries (collectively, “NACCO Industries, Inc. and Subsidiaries” or the “Company”). Intercompany accounts and transactions are eliminated in consolidation. The Company's subsidiaries operate in the following principal industries: mining, consumer, commercial and specialty small appliances and specialty retail. The Company manages its subsidiaries primarily by industry.

The North American Coal Corporation and its affiliated companies (collectively, “NACoal”) mine coal primarily for use in power generation and provide value-added services for natural resource companies. Hamilton Beach Brands, Inc. (“HBB”) is a leading designer, marketer and distributor of branded small electric household and specialty housewares appliances, as well as commercial products for restaurants, bars and hotels. The Kitchen Collection, LLC (“KC”) is a national specialty retailer of kitchenware in outlet and traditional malls throughout the United States.

NACoal has the following operating coal mining subsidiaries: Bisti Fuels Company, LLC ("Bisti"), Caddo Creek Resources Company, LLC (“Caddo Creek”), Camino Real Fuels, LLC (“Camino Real”), The Coteau Properties Company (“Coteau”), Coyote Creek Mining Company, LLC (“Coyote Creek”), Demery Resources Company, LLC (“Demery”), The Falkirk Mining Company (“Falkirk”), Liberty Fuels Company, LLC (“Liberty”), Mississippi Lignite Mining Company (“MLMC”) and The Sabine Mining Company (“Sabine”).

All of the operating coal mining subsidiaries other than MLMC are unconsolidated (collectively the "Unconsolidated Mines"). The Unconsolidated Mines were formed to develop, construct and/or operate surface coal mines under long-term contracts and are capitalized primarily with debt financing provided by or supported by their respective customers, and without recourse to NACCO and NACoal. The contracts with the customers of the Unconsolidated Mines provide for reimbursement to the company at a price based on actual costs plus an agreed upon pre-tax profit per ton of coal sold or actual costs plus an agreed upon fee per btu of heating value delivered. The fees earned at each mine adjust over time in line with various indices which reflect general U.S. inflation rates.

Although NACoal owns 100% of the equity and manages the daily operations of the Unconsolidated Mines, the Company has determined that the equity capital provided by NACoal is not sufficient to adequately finance the ongoing activities or absorb any expected losses without additional support from the customers. The customers have a controlling financial interest and have the power to direct the activities that most significantly affect the economic performance of the entities. As a result, NACoal is not the primary beneficiary and therefore does not consolidate these entities' financial position or results of operations. The income taxes resulting from operations of the Unconsolidated Mines are solely the responsibility of the Company. The pre-tax income from the Unconsolidated Mines is reported on the line “Earnings of unconsolidated mines” in the Consolidated Statements of Operations, with related taxes included in the provision for income taxes. The Company has included the pre-tax earnings of the Unconsolidated Mines above operating profit as they are an integral component of the Company's business and operating results.

MLMC is a consolidated entity because NACoal pays all operating costs and provides the capital for the mine. MLMC sells coal to its customer at a contractually agreed upon price which adjusts monthly, primarily based on changes in the level of established indices which reflect general U.S. inflation rates. Centennial Natural Resources, LLC ("Centennial"), which ceased coal production in the fourth quarter of 2015, is also a consolidated entity.

NACoal provides value-added mining services for independently owned limerock quarries through its North American Mining ("NAM") division. NAM is reimbursed by its customers based on actual costs plus a management fee. The financial results for NAM are included in consolidated mining operations or unconsolidated mining operations based on each entity's structure.

NACoal also provides coal handling, processing and drying services for a number of customers. For example, NoDak Energy Services, LLC ("NoDak") operates and maintains a coal processing facility for a customer's power plant. The pre-tax income from NoDak is reported on the line "Income from other unconsolidated affiliates" in the "Other (income) expense" section of the Consolidated Statements of Operations, with the related income taxes included in the provision for income taxes. North American Coal Royalty Company, a consolidated entity, provides surface and mineral acquisition and lease maintenance services related to the Company's operations.

All of the unconsolidated subsidiaries are accounted for under the equity method. See Note 6 for further discussion.

Basis of Presentation

These financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the financial position of the Company at June 30, 2017 and the results of its operations, comprehensive income (loss), cash flows and changes in equity for the six months ended June 30, 2017 and 2016 have been included. These Unaudited Condensed Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2016.

The balance sheet at December 31, 2016 has been derived from the audited financial statements at that date but does not include all of the information or notes required by U.S. GAAP for complete financial statements.

Operating results for the three and six months ended June 30, 2017 are not necessarily indicative of the results that may be expected for the remainder of the year ending December 31, 2017. The HBB and KC businesses are seasonal and a majority of revenues and operating profit typically occurs in the second half of the calendar year when sales of consumer, commercial and specialty small appliances to retailers and consumers increase significantly for the fall holiday selling season. For further information regarding seasonality of these businesses, refer to the consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2016.