XML 45 R33.htm IDEA: XBRL DOCUMENT
v3.22.2

Nature of Activities and Summary of Significant Accounting Policies (Details Narrative) - USD ($) | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
May 31, 2022 | Oct. 31, 2020 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Awarded Grants |  |  | $ 8,000,000.0 |  |
Gallon Per Year |  |  | 90,000,000 |  |
Contributions |  |  | 1,550,000 |  |
Allowance For Doubtful Accounts Receivable |  |  |  |  | $ 3,300,000
Reimbursement For Actual Costs Incurred |  |  | 6,147,000 | $ 1,224,000 |
US DFAFSG [Member] |  |  |  |  |
Awarded Grants |  |  | 245,000 |  |
India |  |  |  |  |
Gallon Per Year |  |  | 50,000,000 |  |
Kakinada Plant One [Member] |  |  |  |  |
Gallon Per Year |  |  | 50,000,000 |  |
Nameplate Capacity |  |  | 150,000 |  |
CEC-LCFPP [Member] |  |  |  |  |
Awarded Grants |  |  | 4,200,000 |  |
Reimbursement For Actual Costs Incurred |  |  | 3,800,000 |  |
CDFA [Member] |  |  |  |  |
Awarded Grants | $ 642,000 | $ 7,800,000 | 3,200,000 |  |
Contributions |  |  | 2,400,000 |  |
Reimbursement For Actual Costs Incurred |  | $ 1,600,000 | 14,200,000 |  |
CEC-LCAEGP [Member] |  |  |  |  |
Awarded Grants | 500,000 |  | 5,000,000.0 |  |
Gallon Per Year | 2,000,000 |  |  |  |
Contributions | 5,800,000 |  | 7,900,000 |  |
Actual Expenses |  |  | 5,000,000.0 |  |
Capital Expenditures | $ 2,000,000 |  | 1,700,000 |  |
Accounts Receivable [Member] |  |  |  |  |
Reimbursement For Actual Costs Incurred |  |  | $ 73,000 |  |

X
- References No definition available. + Details
Name: | amtx_Actualexpensesincurred
Namespace Prefix: | amtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | amtx_AllowanceForDoubtfulAccountReceivable
Namespace Prefix: | amtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | amtx_AwardedGrants
Namespace Prefix: | amtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | amtx_GallonPerYear
Namespace Prefix: | amtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | amtx_MatchingContribution
Namespace Prefix: | amtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | amtx_NameplateCapacity
Namespace Prefix: | amtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | amtx_UnearnedGrantProceeds
Namespace Prefix: | amtx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cash received from grantors during the current period related to operating activities. This element represents receipts from a guarantor for the amount of guarantee provided. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3536-108585 + Details
Name: | us-gaap_ProceedsFromGrantors
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=amtx_USDepartmentOfFoodAndAgricultureForestServiceGrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityNameAxis=amtx_IndiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=amtx_KakinadaPlantOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=amtx_LCFPPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=amtx_CDFAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=amtx_CECMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=amtx_AccountsReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |