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Note 4 - Debt- Schedule of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt, Long-Term and Short-Term, Combined Amount	$ 261,935	$ 246,240
Short-Term Debt	45,282	36,754
Less current portion of debt	62,701	49,219
Total long term debt	199,234	197,021
Third Eye Capital Term Notes [Member]
Debt, Long-Term and Short-Term, Combined Amount	7,173	7,141
Third Eye Capital Revolving Credit Facility [Member]
Debt, Long-Term and Short-Term, Combined Amount	65,558	60,602
Third Eye Capital Revenue Participation Term Notes [Member]
Debt, Long-Term and Short-Term, Combined Amount	11,995	11,963
Third Eye Capital Acquisition Term Notes [Member]
Debt, Long-Term and Short-Term, Combined Amount	26,625	26,578
Third Eye Capital Fuels Revolving Line [Member]
Debt, Long-Term and Short-Term, Combined Amount	29,087	27,410
Third Eye Capital Carbon Revolving Line [Member]
Debt, Long-Term and Short-Term, Combined Amount	23,135	22,710
Construction Loan Agreement [Member]
Short-Term Debt	21,728	19,820
Cilion Shareholder Seller Notes Payable [Member]
Debt, Long-Term and Short-Term, Combined Amount	6,871	6,821
Subordinated Notes 1 [Member]
Debt, Long-Term and Short-Term, Combined Amount	16,106	15,931
EB-5 Promissory Notes [Member]
Debt, Long-Term and Short-Term, Combined Amount	41,603	41,404
Term Loan On Equipment Purchase [Member]
Debt, Long-Term and Short-Term, Combined Amount	5,856	5,860
IndusInd Bank and HDFC Bank Secured Loans [Member]
Short-Term Debt	3,535	0
Short-term Credit Facility for Working Capital [Member]
Debt, Long-Term and Short-Term, Combined Amount	$ 2,663	$ 0

X

- Definition

Amount of debt and lease obligation, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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+ References

No definition available.

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- Definition

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+ References

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-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
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-Topic 944
-SubTopic 210
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(1))
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