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Note 10 - Agreements - Schedule of Working Capital Agreement Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenues	$ 256,513	$ 211,949
Accounts receivable, net of allowance for doubtful accounts	1,264	1,574
Accounts payable	26,168	16,415
J.D. Heiskell [Member]
Accounts receivable, net of allowance for doubtful accounts	0	308
Accounts payable	27	862
Wet Distiller's Grains Sales [Member] | J.D. Heiskell [Member]
Revenues	50,930	41,476
Corn Oil Sales [Member] | J.D. Heiskell [Member]
Revenues	10,168	6,184
Corn Purchases [Member] | J.D. Heiskell [Member]
Corn purchases	$ 191,401	$ 159,309

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