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Amount of fee of debt instrument as a percentage of carrying value of debt.

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Amount of principal amount that has been sold under debt instrument.

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- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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Note 4 - Debt (Details Textual) - USD ($)									3 Months Ended		9 Months Ended
Note 4 - Debt (Details Textual) - USD ($)	Jul. 01, 2022	Mar. 02, 2022	Jan. 01, 2022	Aug. 09, 2021	Feb. 27, 2019	Jul. 10, 2017	Jul. 06, 2012	Mar. 04, 2011	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2022	Oct. 04, 2022	Aug. 08, 2022	Aug. 01, 2022	Jul. 26, 2022	May 11, 2022	Mar. 08, 2022	Dec. 31, 2021	Nov. 05, 2021	Mar. 14, 2021	Dec. 31, 2020	May 01, 2020	Mar. 06, 2020	Nov. 21, 2019	Jul. 15, 2017	Jan. 09, 2012	Jan. 06, 2012	Nov. 30, 2008
Long-Term Debt, Total											$ 222,982,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)											$ 15.92							$ 2.59			$ 2.59
Warrants and Rights Outstanding, Term (Year)											7 years 8 months 26 days							3 years 11 months 12 days			4 years 11 months 12 days
Short-Term Debt, Total											$ 18,816,000							$ 14,586,000
Debt, Long-Term and Short-Term, Combined Amount, Total											222,982,000							188,767,000
Other Long-Term Debt, Noncurrent											11,876,000							12,038,000
Stock Issued Under Fuels Revolving Line [Member]
Stock Issued During Period, Shares, New Issues (in shares)		100,000
Third Eye Capital [Member] \| Five Year Warrants in Connection With New Credit Facility [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		50,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 10.20
Third Eye Capital [Member] \| Ten Year Warrants in Connection With New Credit Facility [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		250,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 20.00
AAFK [Member] \| Warrants in Connection With Subordinated Notes [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 0.01		$ 0.01																							$ 0.01
Warrants and Rights Outstanding, Term (Year)	2 years		2 years																							2 years
Class of Warrant or Right, Issued (in shares)	113,000		113,000
Revolving Credit Facility [Member]
Repayments of Long-Term Lines of Credit		$ 16,000,000.0
Property Taxes Payment		6,100,000
Revolving Credit Facility [Member] \| GAFI [Member]
Line of Credit Facility, Maximum Borrowing Capacity						$ 10,000,000
Revolving Credit Facility [Member] \| Prime Rate [Member] \| GAFI [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate						7.75%
Revolving Credit Facility [Member] \| Prime Rate [Member] \| GAFI [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate						12.00%
Capital Revolving Credit Facility Fuels And Carbon Lines [Member] \| GAFI and ACCI [Member]
Line of Credit Facility, Maximum Borrowing Capacity		100,000,000
Fuels Revolving Line [Member] \| GAFI [Member]
Line of Credit Facility, Maximum Borrowing Capacity		50,000,000
Carbon Revolving Line [Member] \| ACCI [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 50,000,000
Third Eye Capital [Member]
Payments of Financing Costs, Total					$ 100,000
Third Eye Capital [Member] \| Mr. McAfee [Member]
Net Amount at Risk by Product and Guarantee, Net Amount at Risk											8,000,000.0
Third Eye Capital [Member] \| Revolving Credit Facility [Member]
Debt Instrument, Face Amount							$ 18,000,000.0
Third Eye Capital [Member] \| Revolving Credit Facility [Member] \| AAFK [Member]
Long-Term Debt, Total											57,900,000
Debt Issuance Costs, Net, Total											$ 1,100,000
Third Eye Capital [Member] \| Revolving Credit Facility [Member] \| Prime Rate [Member]
Debt Instrument, Interest Rate, Stated Percentage											20.00%
Debt Instrument, Basis Spread on Variable Rate							13.75%
Third Eye Capital [Member] \| Acquisition Term Notes [Member]
Debt Instrument, Face Amount							$ 15,000,000.0
Third Eye Capital [Member] \| Reserve Liquidity Facility [Member]
Debt Instrument, Interest Rate, Stated Percentage											30.00%
Long-Term Debt, Total											$ 0
Line of Credit Facility, Current Borrowing Capacity											$ 40,000,000.0
Term Loan [Member] \| GAFI [Member]
Debt Instrument, Face Amount						$ 15,000,000
Debt Instrument, Interest Rate, Stated Percentage						10.00%
Term Loan [Member] \| Third Eye Capital [Member]
Debt Instrument, Face Amount							7,200,000
Revenue Participation Term Notes [Member] \| Third Eye Capital [Member]
Debt Instrument, Face Amount							$ 10,000,000.0
Debt Instrument, Interest Rate, Stated Percentage											5.00%
Revenue Participation Term Notes [Member] \| Third Eye Capital [Member] \| AAFK [Member]
Long-Term Debt, Total											$ 11,900,000
Debt Issuance Costs, Net, Total											92,000
Short-term Credit Facility for Working Capital [Member]
Debt, Long-Term and Short-Term, Combined Amount, Total											$ 2,713,000							0
Short-term Credit Facility for Working Capital [Member] \| Third Eye Capital [Member]
Proceeds from Lines of Credit, Total					$ 2,100,000				$ 600,000	$ 700,000
Debt Instrument, Interest Rate, Stated Percentage					14.00%
Amendment No. 19 [Member] \| Third Eye Capital [Member]
Debt Instrument, Fee Amount																				$ 100,000
Debt Instrument, Extension Fee, Percent of Note Indebtedness																				1.00%
Amendment No. 20 [Member] \| Third Eye Capital [Member]
Debt Instrument, Fee Amount				$ 300,000
Debt Instrument, Extension Fee, Percent of Note Indebtedness				1.00%
Debt Instrument, Restrictive Covenants				$100,000
Amendment No. 21 [Member] \| Third Eye Capital [Member]
Debt Instrument, Fee Amount																			$ 100,000
Amendment No. 22 [Member] \| Third Eye Capital [Member]
Debt Instrument, Fee Amount																	$ 100,000
Amendment No. 23 [Member] \| Third Eye Capital [Member]
Debt Instrument, Fee Amount																$ 100,000
Amendment No. 24 [Member] \| Third Eye Capital [Member]
Debt Instrument, Fee Amount													$ 300,000
Debt Instrument, Extension Fee, Percent of Note Indebtedness													1.00%
Reserve Liquidity Facility [Member] \| Third Eye Capital [Member]
Debt Instrument, Face Amount																							$ 18,000,000
Line of Credit Facility, Maximum Borrowing Capacity				$ 40,000,000.0																$ 70,000,000.0
Debt Instrument, Non-refundable Standby Fee, Percent of Difference Between Principal Amount and the Commitment																							2.00%
Non Refundable Fees																							$ 500,000
Reserve Liquidity Facility Paid Monthly in Arrears [Member] \| Third Eye Capital [Member]
Debt Instrument, Interest Rate, Stated Percentage																							30.00%
Reserve Liquidity Facility if Event of Default Occurred and Continues [Member] \| Third Eye Capital [Member]
Debt Instrument, Interest Rate, Stated Percentage																							40.00%
Term Notes [Member] \| Third Eye Capital [Member]
Debt Instrument, Interest Rate, Stated Percentage											14.00%
Long-Term Debt, Total											$ 7,100,000
Debt Issuance Costs, Net, Total											52,000
Acquisition Term Notes [Member] \| Third Eye Capital [Member] \| Aemetis Facility Keyes, Inc. [Member]
Long-Term Debt, Total											26,500,000
Debt Issuance Costs, Net, Total											167,000
Debt Instrument, Redemption Fee											$ 7,500,000
Acquisition Term Notes [Member] \| Third Eye Capital [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate							10.75%				17.00%
Term Notes, Revolving Credit Facility and Acquisition Term Notes [Member] \| Third Eye Capital [Member]
Debt Instrument, Fee, Percent of Carrying Value of Debt											1.00%
Debt Instrument, Fee, Amount Allowed to be Paid in Cash, Percent											50.00%
Debt Instrument, Fee, Amount Allowed to be Added to Debt Outstanding, Percent											50.00%
Term Loan and Revolving Loan [Member] \| GAFI [Member]
Debt Instrument, Fee Amount						$ 500,000
Fuels Revolving Line [Member] \| GAFI [Member]
Debt Instrument, Interest Rate, Stated Percentage		10.00%
Fuels Revolving Line [Member] \| Prime Rate [Member] \| GAFI [Member]
Debt Instrument, Basis Spread on Variable Rate		6.00%
Carbon Revolving Line [Member] \| GAFI [Member]
Long-Term Debt, Total											$ 25,100,000
Debt Issuance Costs, Net, Total											1,700,000
Carbon Revolving Line [Member] \| ACCI [Member]
Debt Instrument, Interest Rate, Stated Percentage		8.00%
Long-Term Debt, Total											22,500,000
Debt Issuance Costs, Net, Total											2,600,000
Carbon Revolving Line [Member] \| Prime Rate [Member] \| ACCI [Member]
Debt Instrument, Basis Spread on Variable Rate		4.00%
Cilion Shareholder Seller Notes Payable [Member]
Debt Instrument, Interest Rate, Stated Percentage							3.00%
Debt, Long-Term and Short-Term, Combined Amount, Total											6,769,000							6,619,000
Cilion Shareholder Seller Notes Payable [Member] \| Aemetis Facility Keyes, Inc. [Member]
Long-Term Debt, Total											6,800,000
Subordinated Notes [Member] \| AAFK [Member]
Debt Instrument, Fee Amount																										$ 2,500,000	$ 900,000
Debt Instrument Fee Rate																										10.00%
Debt Extension Fee, Percentage																										10.00%
Short-Term Debt, Total											15,200,000							14,300,000
Subordinated Notes 1 [Member]
Debt, Long-Term and Short-Term, Combined Amount, Total											15,226,000							14,304,000
Subordinated Notes 1 [Member] \| AAFK [Member]
Debt Instrument, Face Amount	$ 90,000
Debt Instrument, Cash Extension Fee			$ 90,000
Subordinated Notes 2 [Member] \| AAFK [Member]
Debt Instrument, Face Amount	$ 250,000
Debt Instrument, Cash Extension Fee			$ 250,000
EB5 Phase I Notes [Member]
Debt Instrument, Face Amount								$ 500,000
Long-Term Debt, Total																		36,600,000
Debt Instrument, Term (Year)								4 years
Debt Instrument, Convertible, Conversion Price (in dollars per share)					$ 30
Debt Instrument, Amount Released From Escrow											35,500,000
Debt Instrument, Amount Remaining Funded to Escrow											500,000
Principal Amount											37,000,000.0
EB5 Phase I Notes [Member] \| Minimum [Member]
Debt Instrument, Investment Raised Per Investor																						$ 500,000
EB5 Phase I Funding [Member]
Debt Instrument, Face Amount								$ 36,000,000.0
EB5 Phase I Funding [Member] \| Maximum [Member]
Debt Instrument, Face Amount								$ 36,000,000.0
EB5 Phase II Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage																								3.00%
Debt Instrument, Amount Remaining Funded to Escrow											46,800,000
Debt Instrument, Principal Amount Sold											4,000,000.0
Debt, Long-Term and Short-Term, Combined Amount, Total											4,200,000
EB5 Phase II Notes [Member] \| Minimum [Member]
Debt Instrument, Minimum Investment Raised Per Investor																								$ 500,000
EB5 Phase II Notes [Member] \| Maximum [Member]
Debt Instrument, Minimum Investment Raised Per Investor																								$ 900,000
Debt Instrument, Investment Raised Per Investor																						900,000
Aggregate Principal Amount																						$ 50,800,000
Secunderabad Oils [Member]
Debt Instrument, Interest Rate, Stated Percentage															18.00%										14.75%
Long-Term Debt, Total											0							$ 0
First Priority Lien on Assets in Return, Percentage of Monthly Net Operating Profit																												30.00%
Debt Instrument, Fair Value Disclosure, Total																									$ 2,300,000
Debt Agreement, Maximum Borrowing Capacity															$ 1,880,000
Leo Edibles & Fats Limited [Member]
Debt Instrument, Interest Rate, Stated Percentage														18.00%
Debt Agreement, Maximum Borrowing Capacity														$ 1,270,000
Secunderabad Oils and Leo Edibles & Fats Limited [Member]
Short-Term Debt, Total											2,700,000
Construction Loan Agreement [Member] \| Subsequent Event [Member]
Debt Instrument, Interest Rate, Stated Percentage												5.95%
Debt Agreement, Maximum Borrowing Capacity												$ 25,000,000
Usda Annual Renewal Fee												0.25%
Financing Agreement For Capital Expenditures [Member]
Debt Instrument, Face Amount											5,700,000
Short-Term Debt, Total											900,000
Other Long-Term Debt, Noncurrent											$ 5,100,000