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Other Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Other Income (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
MSHA reimbursement	$ 150		$ 450	$ 833
Gain on sale of royalty interests in oil properties		$ 180	2,949
Miscellaneous	247	529	2,439	968
Total Other Income	213	667	5,488	1,065
Savoy [Member]
Loss on disposal of equity method investment				(538)
Sunrise Energy [Member]
Equity income (loss)	$ (184)	$ (42)	$ (350)	$ (198)

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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