Other Long-Term Assets (Tables)

12 Months Ended

Dec. 31, 2019

Other Long-Term Assets [Abstract]

Schedule of Long-Term Assets

	December 31,
	2019		2018
Advanced coal royalties	$	6,105	$	10,186
Marketable equity securities available for sale, at fair value (restricted)*		2,296		1,909
Other		1,923		2,122
Total other assets	$	10,324	$	14,217

*     Held by Sunrise Indemnity, Inc., our wholly owned captive insurance company.