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Acquisitions (Details 1) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Acquisitions
Revenues	$ 15,314	$ 13,625
Net income (loss) operations	$ (12,686)	$ 702
Earning per share attributiable	$ (0.65)	$ 0.04

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- Definition

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount o

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- Definition

Revenue earned during the period by the entity for rights granted to another party under coal mineral leases.

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