Note 7 - Accrued Liabilities and Other Current Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Accrued Expenses and Other Current Liabilities [Table Text Block]

	March 31,		December 31,
	2023		2022
Employee compensation expense	$	2,410	$	6,650
Terminal costs		15,826		12,046
Permitting costs		140		279
Accrued legal services		9,284		3,124
Share-based compensation liability		182		182
Other accrued liabilities		819		903
Total accrued liabilities and other current liabilities	$	28,661	$	23,184