XML 76 R64.htm IDEA: XBRL DOCUMENT
v3.25.1

Note 10 - Warrants to Purchase Common Stock - Fair Value Assumptions (Details) | Mar. 31, 2025 $ / shares yr | Dec. 31, 2024 $ / shares yr
--- | --- | ---
Measurement Input, Expected Dividend Rate [Member] |  |
Warrants and Rights Outstanding, Measurement Input | 0 | 0
Measurement Input, Risk Free Interest Rate [Member] |  |
Warrants and Rights Outstanding, Measurement Input | 0.0425 | 0.0423
Measurement Input, Price Volatility [Member] |  |
Warrants and Rights Outstanding, Measurement Input | 0.9584 | 1.0136
Measurement Input, Expected Term [Member] |  |
Warrants and Rights Outstanding, Measurement Input | yr | 2 | 2
Measurement Input, Exercise Price [Member] |  |
Warrants and Rights Outstanding, Measurement Input | 0.01 | 0.01
Measurement Input, Share Price [Member] |  |
Warrants and Rights Outstanding, Measurement Input | 2.69 | 5.24
Fair Value per Warrant on Grant Date [Member] |  |
Warrants and Rights Outstanding, Measurement Input | 2.68 | 5.23

X
- Definition Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur. + 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)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: 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 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedDividendRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExercisePriceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputSharePriceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=amtx_FairValuePerWarrantOnGrantDateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |