Note 4 - Other Long-term Assets

12 Months Ended

Dec. 31, 2021

Notes to Financial Statements

Other Assets Disclosure [Text Block]

(4)     OTHER LONG-TERM ASSETS (IN THOUSANDS)

	December 31,
	2021		2020
Advanced coal royalties	$	6,678	$	6,449
Other		1,694		1,809
Total other assets	$	8,372	$	8,258