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Note 8 - Outstanding Warrants (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Warrants and Rights Outstanding, Term (Year) | 7 years 5 months 23 days | 3 years 11 months 12 days | 4 years 11 months 12 days
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 15.92 | $ 2.59 | $ 2.59
Class of Warrant or Right, Outstanding (in shares) | 355,000 | 55,000 | 95,000
Warrants Issued with Extension of Notes [Member] |  |  |
Warrants and Rights Outstanding | $ 227 | $ 227 |
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 |  |
Warrants Issued to Obtain Lines of Credit [Member] |  |  |
Class of Warrant or Right, Outstanding (in shares) | 300,000 |  |
Five Year Warrants in Connection With New Credit Facility [Member] |  |  |
Warrants and Rights Outstanding, Term (Year) | 5 years |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 10.20 |  |
Class of Warrant or Right, Outstanding (in shares) | 50,000 |  |
Ten Year Warrants in Connection With New Credit Facility [Member] |  |  |
Warrants and Rights Outstanding, Term (Year) | 10 years |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 20.00 |  |
Class of Warrant or Right, Outstanding (in shares) | 250 |  |
Aemetis Carbon Capture, Inc. Carbon Sequestration Project [Member] |  |  |
Class of Warrant or Right, Granted (in shares) | 65,000 |  |

X
- Definition Number of warrants or right granted during period. + References No definition available. + Details
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Balance Type: | na
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 -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
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X
- Definition Number of warrants or rights outstanding. + References No definition available. + Details
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X
- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References No definition available. + Details
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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 -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 + Details
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- Details
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- Details
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- Details
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X
- Details
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