Note 8 - Accrued Liabilities and Other Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	December 31,		December 31,
	2019		2018
Employee compensation expense	$	4,221	$	3,130
Terminal and Pipeline asset costs		2,503		2,014
Valve installation incentive (1)		—		2,000
Accrued legal services		1,060		313
Other accrued liabilities		967		896
Total accrued liabilities and other current liabilities	$	8,751	$	8,353