Note 3 - Prepaid Expenses and Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Prepaid Expense and Other Current Assets [Table Text Block]

	December 31,		December 31,
	2019		2018
Rio Grande LNG site option	$	—	$	486
Prepaid subscriptions		161		—
Prepaid insurance		292		233
Prepaid marketing and sponsorships		25		242
Other		381		349
Total prepaid expenses and other current assets	$	859	$	1,310