XML 38 R27.htm IDEA: XBRL DOCUMENT
v3.22.1

Outstanding Warrants (Tables) | 3 Months Ended
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Mar. 31, 2022
Outstanding Warrants |
Weighted Average Assumptions |
Description |  | For the three months ended March 31, |
|  | 2022 |  |  | 2021 |
Dividend-yield |  |  | 0 | % |  |  | 0 | %
Risk-free interest rate |  |  | 1.45 | % |  |  | 0.12 | %
Expected volatility |  |  | 139.55 | % |  |  | 150.17 | %
Expected life (years) |  |  | 4 |  |  |  | 2 |
Exercise price per warrant |  | $ | 13.33 |  |  | $ | 0.01 |
Market value per share on grant date |  | $ | 13.06 |  |  | $ | 2.49 |
Fair value per warrant on grant date |  | $ | 11.01 |  |  | $ | 2.48 |
Schedule Of Warrant Activity |
|  | Warrants Outstanding & Exercisable |  |  | Weighted - Average Exercise Price |  |  | Average Remaining Term in Years |
Outstanding December 31, 2020 |  |  | 95 |  |  | $ | 2.59 |  |  |  | 4.95 |
Granted |  |  | 292 |  |  |  | 0.01 |  |  |  |  |
Exercised |  |  | (332 | ) |  |  | 0.32 |  |  |  |  |
Outstanding December 31, 2021 |  |  | 55 |  |  | $ | 2.59 |  |  |  | 3.95 |
Granted |  |  | 413 |  |  |  | 13.33 |  |  |  |  |
Exercised |  |  | (113 | ) |  |  | 0.01 |  |  |  |  |
Outstanding March 31, 2022 |  |  | 355 |  |  | $ | 15.92 |  |  |  | 8.24 |

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Namespace Prefix: | amtx_
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Balance Type: | na
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- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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