Note 4 - Miscellaneous Other Income (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Interest and Other Income [Table Text Block]

	For the Years Ended December 31,
	2020		2019		2018
Contract Buyout	$	44,703	$	9,959	$	350
Sale of Certain Mining Rights		39,437		—		—
Sale of Certain Coal Lease Contracts		17,847		—		—
Royalty Income - Non-Operated Coal		12,032		22,208		24,722
Litigation Proceeds		8,624		—		—
Rental Income		1,314		2,517		3,804
Interest Income		1,230		2,937		2,146
Property Easements and Option Income		907		1,631		5,644
Purchased Coal Sales		—		12,385		19,152
Other		792		1,712		2,842
Miscellaneous Other Income	$	126,886	$	53,349	$	58,660