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Note 12 - Agreements - Schedule of Working Capital Agreement Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Revenues	$ 59,190	$ 81,441	$ 154,319	$ 220,636
J.D. Heiskell [Member]
Accounts receivable	122		122		$ 25
J.D. Heiskell [Member] | Ethanol Sales [Member]
Revenues	31,252	32,812	87,035	87,635
J.D. Heiskell [Member] | Wet Distiller's Grains Sales [Member]
Revenues	7,305	8,961	23,133	27,476
J.D. Heiskell [Member] | Corn Oil Sales [Member]
Revenues	1,949	1,746	4,900	4,199
J.D. Heiskell [Member] | CDS Sales [Member]
Revenues	24	24	39	49
J.D. Heiskell [Member] | Corn Purchases [Member]
Corn purchases	$ 29,761	$ 33,170	$ 91,050	$ 97,489

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