XML 37 R27.htm IDEA: XBRL DOCUMENT v3.22.2.2

Note 8 - Outstanding Warrants (Tables)

9 Months Ended

Sep. 30, 2022

Notes Tables

Schedule of Warrants, Valuation Assumptions [Table Text Block]

		For the nine months ended September 30, 2022
Description		2022				2021
Dividend-yield			-	%			-	%
Risk-free interest rate			1.75	%			0.19	%
Expected volatility			151.41	%			139.35	%
Expected life (years)			3.52				2.00
Exercise price per warrant		$	10.47			$	0.01
Market value per share on grant date		$	11.29			$	6.83
Fair value per warrant on grant date		$	9.68			$	6.82

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

		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			527				10.46
Exercised			(227	)			0.01
Outstanding September 30, 2022			355			$	15.92				7.74

X

- Definition

Tabular disclosure for the valuation assumptions of warrants.

+ References

No definition available.

+ Details

Name:	amtx_ScheduleOfWarrantsValuationAssumptionsTableTextBlock
Namespace Prefix:	amtx_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section S99
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775

+ Details

Name:	us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration