Note 7 - Aemetis Biogas - Series A Preferred Financing and Variable Interest Entity	12 Months Ended
Dec. 31, 2024
Notes to Financial Statements
Variable Interest Entity Disclosure [Text Block]	7. Aemetis Biogas - Series A Preferred Financing and Variable Interest Entity On December 20, 2018, Aemetis Biogas LLC ("ABGL") entered into a Series A Preferred Unit Purchase Agreement for the sale of Series A Preferred Units to Protair-X Technologies Inc., with Third Eye Capital acting as an agent. ABGL is authorized to issue 11,000,000 common units and 6,000,000 convertible, redeemable, secured, preferred membership units (the “Series A Preferred Units”). ABGL issued 6,000,000 common units to Aemetis, Inc. at a value of $5.00 per common unit, and 5,000,000 common units of ABGL are held in reserve as potential conversion units issuable to the Preferred Unit holder upon certain triggering events. From inception of the agreement through 2022, ABGL issued 6,000,000 Series A Preferred Units in exchange for $30.0 million in funding, reduced by a redemption of 20,000 Series A Preferred Units for $0.3 million. The original Preferred Unit Purchase Agreement included requirements for preference payments and mandatory redemption, in addition to several operating covenants. Between inception and December 31, 2024, the agreement has been amended multiple times to extend the redemption date along with associated changes to key terms, with each modification treated as a troubled debt restructuring under ASC 470-60 with no gain or loss recorded. On November 6, 2024, ABGL entered into an agreement entitled Seventh Waiver and Amendment to Series A Preferred Unit Purchase Agreement (“PUPA Seventh Amendment") with an Effective Date of August 31, 2024, that provided, among other provisions, the requirement for ABGL to redeem all of the outstanding Series A Preferred Units by January 31, 2025, for an aggregate redemption price of $115.5 million. The PUPA Seventh Amendment further provided that if ABGL did not redeem the Series A Preferred Units by the redemption date, ABGL would enter into a credit agreement with Protair-X Technologies Inc. and Third Eye Capital effective as of February 1, 2025, and maturing January 31, 2026, in substantially the form attached to the PUPA Seventh Amendment and specified that entry of the credit agreement would satisfy the obligation to redeem the units. The credit agreement would bear an interest rate equal to the greater of (i) the prime rate plus 10.0% and (ii) 16.0%. We determined that Third Eye Capital provided a concession to redeem the preferred shares at lower effective borrowing rate than the credit agreement interest rate of the prior amendment rate. In accordance with the troubled debt restructuring provisions of ASC 470, we did not record any gain or loss from the entry of the PUPA Seventh Amendment and we began accreting the redemption price from a carrying value of $124.9 million to $137.9 million over the period ending January 31, 2026. In March 2025, ABGL entered into an agreement entitled Eighth Waiver and Amendment to Series A Preferred Unit Purchase Agreement (“PUPA Eighth Amendment") with an Effective Date of January 31, 2025, that provides, among other provisions, the requirement for ABGL to redeem all of the outstanding Series A Preferred Units by April 30, 2025, for an aggregate redemption price of $114.8 million. The PUPA Eighth Amendment further provides that if ABGL does not redeem the Series A Preferred Units by the redemption date, ABGL will enter into a credit agreement with Protair-X Technologies Inc. and Third Eye Capital effective as of May 1, 2025, and maturing April 30, 2026, in substantially the form attached to the PUPA Eighth Amendment and specifies that entry of the credit agreement will satisfy the obligation to redeem the Series A Preferred Units. The credit agreement would bear an interest rate equal to the greater of (i) the prime rate plus 10.0% and (ii) 16.0%. We will evaluate the PUPA Eighth Amendment according to ASC 470. The Company recorded Series A Preferred Unit liabilities of $126.6 million and $113.2 million as long-term liabilities as of December 31, 2024 and 2023, respectively. Variable interest entity assessment After consideration of ABGL’s operations and the above agreement, we concluded that ABGL did not have enough equity to finance its activities without additional subordinated financial support. ABGL is capitalized with Series A Preferred Units that are recorded as liabilities under U.S. GAAP. Hence, we concluded that ABGL is a VIE. Through the Company's ownership interest in all of the outstanding common stock, its current ability to control the board of directors, the management fee paid to Aemetis and control of subordinated financing decisions, Aemetis has been determined to be the primary beneficiary and accordingly, the assets, liabilities, and operations of ABGL are consolidated into those of the Company. ABGL's total assets before intercompany eliminations as of December 31, 2024 were $126.1 million which serve as collateral for the Series A Preferred Units.

Note 7 - Aemetis Biogas - Series A Preferred Financing and Variable Interest Entity

12 Months Ended

Dec. 31, 2024

Variable Interest Entity Disclosure [Text Block]

7. Aemetis Biogas - Series A Preferred Financing and Variable Interest Entity

On December 20, 2018, Aemetis Biogas LLC ("ABGL") entered into a Series A Preferred Unit Purchase Agreement for the sale of Series A Preferred Units to Protair-X Technologies Inc., with Third Eye Capital acting as an agent. ABGL is authorized to issue 11,000,000 common units and 6,000,000 convertible, redeemable, secured, preferred membership units (the “Series A Preferred Units”). ABGL issued 6,000,000 common units to Aemetis, Inc. at a value of $5.00 per common unit, and 5,000,000 common units of ABGL are held in reserve as potential conversion units issuable to the Preferred Unit holder upon certain triggering events. From inception of the agreement through 2022, ABGL issued 6,000,000 Series A Preferred Units in exchange for $30.0 million in funding, reduced by a redemption of 20,000 Series A Preferred Units for $0.3 million. The original Preferred Unit Purchase Agreement included requirements for preference payments and mandatory redemption, in addition to several operating covenants.

Between inception and December 31, 2024, the agreement has been amended multiple times to extend the redemption date along with associated changes to key terms, with each modification treated as a troubled debt restructuring under ASC 470-60 with no gain or loss recorded. On November 6, 2024, ABGL entered into an agreement entitled Seventh Waiver and Amendment to Series A Preferred Unit Purchase Agreement (“PUPA Seventh Amendment") with an Effective Date of August 31, 2024, that provided, among other provisions, the requirement for ABGL to redeem all of the outstanding Series A Preferred Units by January 31, 2025, for an aggregate redemption price of $115.5 million. The PUPA Seventh Amendment further provided that if ABGL did not redeem the Series A Preferred Units by the redemption date, ABGL would enter into a credit agreement with Protair-X Technologies Inc. and Third Eye Capital effective as of February 1, 2025, and maturing January 31, 2026, in substantially the form attached to the PUPA Seventh Amendment and specified that entry of the credit agreement would satisfy the obligation to redeem the units. The credit agreement would bear an interest rate equal to the greater of (i) the prime rate plus 10.0% and (ii) 16.0%. We determined that Third Eye Capital provided a concession to redeem the preferred shares at lower effective borrowing rate than the credit agreement interest rate of the prior amendment rate. In accordance with the troubled debt restructuring provisions of ASC 470, we did not record any gain or loss from the entry of the PUPA Seventh Amendment and we began accreting the redemption price from a carrying value of $124.9 million to $137.9 million over the period ending January 31, 2026.

In March 2025, ABGL entered into an agreement entitled Eighth Waiver and Amendment to Series A Preferred Unit Purchase Agreement (“PUPA Eighth Amendment") with an Effective Date of January 31, 2025, that provides, among other provisions, the requirement for ABGL to redeem all of the outstanding Series A Preferred Units by April 30, 2025, for an aggregate redemption price of $114.8 million. The PUPA Eighth Amendment further provides that if ABGL does not redeem the Series A Preferred Units by the redemption date, ABGL will enter into a credit agreement with Protair-X Technologies Inc. and Third Eye Capital effective as of May 1, 2025, and maturing April 30, 2026, in substantially the form attached to the PUPA Eighth Amendment and specifies that entry of the credit agreement will satisfy the obligation to redeem the Series A Preferred Units. The credit agreement would bear an interest rate equal to the greater of (i) the prime rate plus 10.0% and (ii) 16.0%. We will evaluate the PUPA Eighth Amendment according to ASC 470. The Company recorded Series A Preferred Unit liabilities of $126.6 million and $113.2 million as long-term liabilities as of December 31, 2024 and 2023, respectively.

Variable interest entity assessment

After consideration of ABGL’s operations and the above agreement, we concluded that ABGL did not have enough equity to finance its activities without additional subordinated financial support. ABGL is capitalized with Series A Preferred Units that are recorded as liabilities under U.S. GAAP. Hence, we concluded that ABGL is a VIE. Through the Company's ownership interest in all of the outstanding common stock, its current ability to control the board of directors, the management fee paid to Aemetis and control of subordinated financing decisions, Aemetis has been determined to be the primary beneficiary and accordingly, the assets, liabilities, and operations of ABGL are consolidated into those of the Company. ABGL's total assets before intercompany eliminations as of December 31, 2024 were $126.1 million which serve as collateral for the Series A Preferred Units.