Note 6 - Other Non-current Assets - Schedule of Other Non-current Assets (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Permitting costs	[1]	$ 8,680	$ 8,540
Rio Grande Site Lease initial direct costs		21,243	19,647
Deposits and other		185	185
Total other non-current assets, net		$ 30,108	$ 28,372

[1] Permitting costs primarily represent costs incurred in connection with permit applications to the United States Army Corps of Engineers and the U.S. Fish and Wildlife Service for mitigation measures for potential impacts to wetlands and habitat that may be caused by the construction of the Terminal and the Pipeline.