Note 7 - Revenue and Accounts Receivable - Schedule Of America By Product Category (Details) - India Biodiesel [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues	$ 11,904	$ 24,831	$ 14,599	$ 57,584
Renewable Energy, Biodiesel [Member]
Revenues	9,541	23,708	9,541	54,700
Product and Service, Other [Member]
Revenues	$ 2,363	$ 1,123	$ 5,058	$ 2,884

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details