Note 21 - Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Condensed Balance Sheet [Table Text Block]

	2019		2018
Accounts receivable
Biodiesel, petrodiesel, blends, and other petroleum products	$	4,602	$	1,844
Total accounts receivable	$	4,602	$	1,844
Prepaid expenses
Administrative services and other	$	12	$	12
Total prepaid expenses	$	12	$	12
Accounts payable
Natural gas and fuel purchases	$	867	$	1,354
Travel and administrative services		388		335
Total accounts payable	$	1,255	$	1,689
Accrued expenses and other current liabilities
Travel and administrative services	$	64	$	-
Total accrued liabilities	$	64	$	-

Condensed Income Statement [Table Text Block]

	For the years ended December 31:
	2019		2018		2017
Revenues
Biodiesel, petrodiesel, blends, and other petroleum products	$	3,178	$	4,069	$	1,882
Total revenues	$	3,178	$	4,069	$	1,882
Cost of goods sold
Biodiesel, petrodiesel, blends, and other petroleum products	$	12,647	$	13,985	$	21,655
Natural gas purchases		4,298		5,510		4,871
Total cost of goods sold	$	16,945	$	19,495	$	26,526
Distribution
Distribution and related services	$	181	$	191	$	160
Total distribution	$	181	$	191	$	160
Selling, general and administrative expenses
Commodity trading advisory fees	$	307	$	307	$	307
Travel and administrative services		280		282		189
Income tax, consulting services, and other		120		101		80
Total selling, general, and administrative expenses	$	707	$	690	$	576