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Note 1 - Nature of Activities and Summary of Significant Accounting Policies - Schedule of America By Product Category (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
India Biodiesel [Member]
Ethanol sales	$ 1,470	$ 8
California [Member]
Ethanol sales	475	52,041
Ethanol Sales [Member] | California [Member]
Ethanol sales	368	37,896
Biodiesel Sales [Member] | India Biodiesel [Member]
Ethanol sales	1,190	0
Wet Distiller's Grains Sales [Member] | California [Member]
Ethanol sales	0	11,517
Other Sales [Member] | India Biodiesel [Member]
Ethanol sales	280	8
Other Sales [Member] | California [Member]
Ethanol sales	$ 107	$ 2,628

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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