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Business Segments (Tables)

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Segment Reporting Information

The following tables present revenue, operating profit, capital expenditures and depreciation expense:

			THREE MONTHS ENDED
			MARCH 31
			2023						2022
Revenues
Coal Mining			$	20,653					$	20,962
NAMining			20,633						21,404
Minerals Management			8,285						12,754
Unallocated Items			1,191						192
Eliminations			(621)						(289)
Total			$	50,141					$	55,023
Operating profit (loss)
Coal Mining			$	313					$	7,352
NAMining			830						1,271
Minerals Management			6,044						11,628
Unallocated Items			(5,353)						(5,439)
Eliminations			(20)						132
Total			$	1,814					$	14,944

Expenditures for property, plant and equipment and acquisition of mineral interests
Coal Mining			$	2,686					$	1,720
NAMining			4,423						1,820
Minerals Management			344						833
Unallocated Items			426						276
Total			$	7,879					$	4,649
Depreciation, depletion and amortization
Coal Mining			$	4,240					$	4,038
NAMining			1,886						1,467
Minerals Management			811						578
Unallocated Items			82						44
Total			$	7,019					$	6,127

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- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8813-108599

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599

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- References

No definition available.

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