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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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