Note 7 - Revenues (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three months ended March 31,
In thousands	2019		2018
Coal Sales
Domestic revenues	$	36,571	$	23,610
Export revenues		20,889		32,333
Total revenues	$	57,460	$	55,943