Note 5 - Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Property, Plant and Equipment [Table Text Block]

	Estimated Useful		December 31,			June 30,
	Lives (Years)		2021			2022
			(dollars in thousands)
Land		N/A	$	21,826		$	23,313
Land improvements		10-20		5,125			5,144
Storage and terminal facilities		10-35		257,433			263,956
Office property and equipment and other		3-30		21,751			22,529
Construction-in-progress		N/A		4,355			13,340
Property, plant and equipment, gross				310,490			328,282
Accumulated depreciation				(204,101	)		(208,755	)
Property, plant and equipment, net			$	106,389		$	119,527