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Note 9 - Agreements - Schedule of Working Capital Agreement Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Revenues	$ 45,112	$ 65,901	$ 47,263	$ 117,950
Accounts payable	30,306		30,306		$ 26,168
J.D. Heiskell [Member]
Accounts receivable	739	232	739	232
Accounts payable	39	612	39	612
Working Capital	1,264	0	1,264	0
Ethanol Sales [Member] | J.D. Heiskell [Member]
Revenues	8,647	0	8,647	0
Wet Distiller's Grains Sales [Member] | J.D. Heiskell [Member]
Revenues	2,553	15,150	2,553	26,666
Corn Oil Sales [Member] | J.D. Heiskell [Member]
Revenues	89	2,812	125	5,150
CDS Sales [Member] | J.D. Heiskell [Member]
Revenues	11	0	11	0
Corn Purchases [Member] | J.D. Heiskell [Member]
Corn purchases	$ 11,611	$ 54,352	$ 11,913	$ 98,362

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