XML 98 R82.htm IDEA: XBRL DOCUMENT
v3.24.1

Note 15 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | Feb. 08, 2023 | Mar. 06, 2020 | Mar. 25, 2024 | Mar. 22, 2024 | Jan. 01, 2024 | Dec. 31, 2023 | Jul. 01, 2023 | Jan. 01, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Mar. 14, 2021 | Jan. 09, 2012 | Jan. 06, 2012
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Warrants and Rights Outstanding, Term (Year) |  |  |  |  |  | 5 years 9 months 7 days |  |  | 7 years 5 months 23 days | 4 years 11 months 12 days |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  |  | $ 11.7 |  |  | $ 15.92 | $ 2.59 |  |  |
Line of Credit [Member] | Required Credit Agreement to Satisfy Units Redemption Obligation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Term (Year) | 12 months |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 111,000 |  |  |  |  |  |  |  |  |  |  |  |
PUPA Fifth Amendment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Units Issued Value | $ 111,000 |  |  |  |  |  |  |  |  |  |  |  |
AAFK [Member] | Warrants in Connection With Subordinated Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Term (Year) |  |  |  |  |  |  | 2 years | 2 years |  |  |  | 2 years |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  |  |  | $ 0.01 | $ 0.01 |  |  |  | $ 0.01 |
Subsequent Event [Member] | AAFK [Member] | Warrants in Connection With Subordinated Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  | 113 |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Term (Year) |  |  |  |  | 2 years |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  | $ 0.01 |  |  |  |  |  |  |  |
Subordinated Notes [Member] | AAFK [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Fee Amount |  |  |  |  |  |  |  |  |  |  |  | $ 2,500 | $ 900
Subordinated Notes [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Financing |  |  |  |  | $ 25,000 |  |  |  |  |  |  |  |
Subordinated Notes 1 [Member] | AAFK [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Cash Extension Fee |  |  |  |  |  |  | $ 90 | $ 90 |  |  |  |  |
Subordinated Notes 1 [Member] | Subsequent Event [Member] | AAFK [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Cash Extension Fee |  |  |  |  | 90 |  |  |  |  |  |  |  |
Subordinated Notes 2 [Member] | AAFK [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Cash Extension Fee |  |  |  |  |  |  | $ 250 | $ 250 |  |  |  |  |
Subordinated Notes 2 [Member] | Subsequent Event [Member] | AAFK [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Cash Extension Fee |  |  |  |  | $ 250 |  |  |  |  |  |  |  |
Reserve Liquidity Facility [Member] | Third Eye Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Term (Year) |  | 1 year |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  | $ 70,000 |  |
Reserve Liquidity Facility [Member] | Subsequent Event [Member] | Third Eye Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 85,000 | $ 85,000 |  |  |  |  |  |  |  |  |
Debt Instrument, Fee Amount |  |  | 500 |  |  |  |  |  |  |  |  |  |
Amendment No 28 [Member] | Subsequent Event [Member] | Third Eye Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Fee Amount |  |  | $ 100 |  |  |  |  |  |  |  |  |  |

X
- Definition Amount of the cash extension fee that accompanies borrowing money under the debt instrument. + References No definition available. + Details
Name: | amtx_DebtInstrumentCashExtensionFee
Namespace Prefix: | amtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents equity financing. + References No definition available. + Details
Name: | amtx_EquityFinancing
Namespace Prefix: | amtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents preferred units issued value. + References No definition available. + Details
Name: | amtx_PreferredUnitsIssuedValue
Namespace Prefix: | amtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of the fee that accompanies borrowing money under the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_DebtInstrumentFeeAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=amtx_RequiredCreditAgreementToSatisfyUnitsRedemptionObligationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PreferredUnitsByNameAxis=amtx_PupaFifthAmendmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=amtx_AAFKMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=amtx_WarrantsInConnectionWithSubordinatedNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=amtx_SubordinatedNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=amtx_SubordinatedNotes1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=amtx_SubordinatedNotes2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=amtx_ReserveLiquidityFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=amtx_ThirdEyeCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=amtx_AmendmentNo28Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |