Note 3 - Revenue (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Disaggregation of Revenue [Table Text Block]

	For the Year Ended		For the Year Ended		For the Year Ended
	December 31, 2020		December 31, 2019		December 31, 2018
Coal Revenue	$	772,662	$	1,288,529	$	1,364,292
Terminal Revenue		66,810		67,363		64,926
Freight Revenue		39,990		19,667		43,572
Total Revenue from Contracts with Customers	$	879,462	$	1,375,559	$	1,472,790