Note 4 - Debt- Schedule of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt, Long-Term and Short-Term, Combined Amount	$ 294,721	$ 246,240
Short-Term Debt	23,443	36,754
Less current portion of debt	37,028	49,219
Total long term debt	257,693	197,021
Third Eye Capital Term Notes [Member]
Debt, Long-Term and Short-Term, Combined Amount	7,159	7,141
Third Eye Capital Revolving Credit Facility [Member]
Debt, Long-Term and Short-Term, Combined Amount	20,922	60,602
Revolving Notes Series B [Member]
Debt, Long-Term and Short-Term, Combined Amount	54,412	0
Third Eye Capital Revenue Participation Term Notes [Member]
Debt, Long-Term and Short-Term, Combined Amount	12,011	11,963
Third Eye Capital Acquisition Term Notes [Member]
Debt, Long-Term and Short-Term, Combined Amount	26,655	26,578
Third Eye Capital Fuels Revolving Line [Member]
Debt, Long-Term and Short-Term, Combined Amount	32,511	27,410
Third Eye Capital Carbon Revolving Line [Member]
Debt, Long-Term and Short-Term, Combined Amount	23,486	22,710
Construction Loan Agreement [Member]
Debt, Long-Term and Short-Term, Combined Amount	41,024	19,820
Cilion Shareholder Seller Notes Payable [Member]
Debt, Long-Term and Short-Term, Combined Amount	7,028	6,821
Subordinated Notes 1 [Member]
Short-Term Debt	17,625	15,931
EB-5 Promissory Notes [Member]
Debt, Long-Term and Short-Term, Combined Amount	42,211	41,404
Working capital Loan [Member]
Short-Term Debt	3,827	0
Term Loan On Equipment Purchase [Member]
Debt, Long-Term and Short-Term, Combined Amount	$ 5,850	$ 5,860

Amount of debt and lease obligation, classified as current.

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