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Subsequent Events (Details Narrative) - AMTXSenior Debt Tec Member [Member] - Subsequent Event [Member]	May 11, 2022 USD ($)
Capital expenditure	$ 100,000
Waiver fee	$ 100,000

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- References

No definition available.

+ Details

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Namespace Prefix:	amtx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of cash outflow for fees classified as other.

+ 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 (g)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Details

Name:	us-gaap_DebtInstrumentAxis=amtx_AMTXSeniorDebtTecMemberMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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- Details

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Namespace Prefix:
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