Note 7 - Other Non-current Assets - Schedule of Other Non-current Assets (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018	Aug. 31, 0268
Permitting costs(1)	[1]	$ 2,621
Enterprise resource planning system		3,181
Rio Grande Site Lease initial direct costs		946
Total other non-current assets		$ 6,748

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