Note 4 - Debt - Interest and Debt Costs Incurred, Net of Interest Capitalized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Total interest and debt costs incurred	$ 48,742	$ 17,413	$ 15,607
Less: interest costs capitalized	(270)	(224)	(24)
Total interest and debt costs	$ 48,472	$ 17,189	$ 15,583